Overview Review Traffic Revenue SEO
Hosting Registration Security Technical Related

sis.gov.uk

sis.gov.uk is SSL secured

Free website and domain report on sis.gov.uk

Last Updated: 18th March, 2022 Update Now
Overview

Snoop Summary for sis.gov.uk

This is a free and comprehensive report about sis.gov.uk. Sis.gov.uk is hosted in United States on a server with an IP address of 104.18.7.144, where USD is the local currency and the local language is English. Sis.gov.uk has the potential to be earning an estimated $7 USD per day from advertising revenue. If sis.gov.uk was to be sold it would possibly be worth $4,787 USD (based on the daily revenue potential of the website over a 24 month period). Sis.gov.uk is quite popular with an estimated 2,296 daily unique visitors. This report was last updated 18th March, 2022.

About sis.gov.uk

Site Preview: sis.gov.uk sis.gov.uk
Title: SIS | Home
Description: SIS comprises the foreign section, formerly MI6, with MI5 responsible for protecting the UK's internal security. Includes overview of work, history, relationship with other government bodies, FAQ and guidance for careers.
Keywords and Tags: government, military
Related Terms: kiss x sis oav 10 vostfr, kiss x sis raw, mi5, mi6, sis uob, sis uol, x step sis, yale sis
Fav Icon:
Age: Over 27 years old
Domain Created: 31st July, 1996
Domain Updated:
Domain Expires:
Review

Snoop Score

3/5 (Great!)

Valuation

$4,787 USD
Note: All valuation figures are estimates.

Popularity

Modest
Note: Popularity is estimated.

Rank, Reach and Authority

Alexa Rank: 225,015
Alexa Reach:
SEMrush Rank (US):
SEMrush Authority Score:
Moz Domain Authority: 0
Moz Page Authority: 0

Organic vs Paid (Google Ads)

Traffic

Visitors

Daily Visitors: 2,296
Monthly Visitors: 69,883
Yearly Visitors: 838,040
Note: All visitors figures are estimates.

Visitors By Country

Revenue

Revenue

Daily Revenue: $7 USD
Monthly Revenue: $199 USD
Yearly Revenue: $2,388 USD
Note: All revenue figures are estimates.

Revenue By Country

SEO

Backlinks Analysis (SEMrush)

Top New Follow Links

Top Ranking Keywords (US)

Domain Analysis

Value Length
Domain: sis.gov.uk 10
Domain Name: sis 3
Extension (TLD): govuk 5

Page Speed Analysis

Average Load Time: 0.69 seconds
Load Time Comparison: Faster than 83% of sites

PageSpeed Insights

Avg. (All Categories) 77
Performance 88
Accessibility 100
Best Practices 83
SEO 90
PWA 22
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.sis.gov.uk/
Updated: 18th March, 2022

1.45 seconds
First Contentful Paint (FCP)
79%
11%
10%

0.00 seconds
First Input Delay (FID)
99%
0%
1%

Simulate loading on desktop
88

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for sis.gov.uk. This includes details about optimizing page load times which can result in a better user experience.

Metrics

First Contentful Paint — 0.7 s
The time taken for the first image or text on the page to be rendered.
Time to Interactive — 1.5 s
The time taken for the page to become fully interactive.
Total Blocking Time — 0 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.002
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 30 ms
Users could experience a delay when interacting with the page.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://sis.gov.uk/
http/1.1
0
138.05700000376
404
0
301
text/plain
https://sis.gov.uk/
http/1.1
138.37000029162
278.27800018713
479
0
301
text/plain
https://www.sis.gov.uk/
h2
278.66999991238
439.13900014013
4428
15257
200
text/html
Document
https://www.sis.gov.uk/css/ekko-lightbox.css
h2
453.36899999529
977.52600023523
1172
1175
200
text/css
Stylesheet
https://www.sis.gov.uk/css/jquery.fancybox.css
h2
453.72699992731
965.99599998444
2133
5168
200
text/css
Stylesheet
https://www.sis.gov.uk/css/breakingNews.css
h2
454.10700002685
948.10600019991
1878
4848
200
text/css
Stylesheet
https://www.sis.gov.uk/css/video-js.css
h2
454.44100024179
583.70000030845
14071
45633
200
text/css
Stylesheet
https://www.sis.gov.uk/slick/slick.css
h2
454.73500015214
584.08500021324
1274
1895
200
text/css
Stylesheet
https://www.sis.gov.uk/slick/slick-theme.css
h2
455.07899997756
954.1259999387
1567
3349
200
text/css
Stylesheet
https://www.sis.gov.uk/css/hamburgers.min.css
h2
455.3789999336
610.22299993783
3009
22467
200
text/css
Stylesheet
https://www.sis.gov.uk/css/main.css
h2
455.82799986005
579.87700030208
7313
39796
200
text/css
Stylesheet
https://www.sis.gov.uk/css/updates.css
h2
456.0670000501
985.74799997732
6452
35194
200
text/css
Stylesheet
https://www.sis.gov.uk/js/jquery-1.11.3.min.js
h2
456.44300011918
595.42099991813
33935
95962
200
text/javascript
Script
https://www.sis.gov.uk/images/logo.png
h2
991.92500021309
1752.6839999482
6632
5959
200
image/png
Image
https://www.sis.gov.uk/images/our-mission-bg.png
h2
992.1059999615
2919.3839998916
1181290
1180616
200
image/png
Image
https://www.sis.gov.uk/images/tri-agencies.png
h2
992.35500022769
1116.8440002948
5232
4556
200
image/png
Image
https://www.sis.gov.uk/images/logo-bhm.png
h2
992.59500019252
1755.0579998642
13001
12331
200
image/png
Image
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
h2
992.9430000484
1131.2259999104
10119
9443
200
image/png
Image
https://www.sis.gov.uk/images/logo-raceatwork.png
h2
993.14700020477
1764.0559999272
11819
11149
200
image/png
Image
https://www.sis.gov.uk/images/logo-smf-2021.png
h2
993.6859998852
1933.8070000522
35618
34948
200
image/png
Image
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
h2
994.12399996072
1755.6360000744
30933
30259
200
image/png
Image
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
h2
994.37600001693
1766.6759998538
21153
20479
200
image/png
Image
https://www.sis.gov.uk/js/jquery.parallax-1.1.3.js
h2
978.92600018531
1118.6140002683
1510
1839
200
text/javascript
Script
https://www.sis.gov.uk/js/jquery.fancybox.js
h2
987.46199999005
1813.955000136
14698
50749
200
text/javascript
Script
https://www.sis.gov.uk/js/breakingNews.js
h2
990.23200012743
1765.9419998527
2199
5485
200
text/javascript
Script
https://www.sis.gov.uk/js/jquery.bgswitcher.js
h2
990.44799990952
1031.4640002325
3791
12273
200
text/javascript
Script
https://www.sis.gov.uk/js/video.js
h2
990.7349999994
1710.5920002796
151670
719159
200
text/javascript
Script
https://www.sis.gov.uk/js/navigation.js
h2
990.94500020146
1698.6779998988
917
381
200
text/javascript
Script
https://www.sis.gov.uk/slick/slick.min.js
h2
991.13199999556
1722.3900002427
11044
42864
200
text/javascript
Script
https://www.sis.gov.uk/scripts/scripts.js
h2
991.33299989626
1767.1920000575
2096
5765
200
text/javascript
Script
https://www.sis.gov.uk/scripts/amend-hrefs.js
h2
991.53800029308
1707.4199998751
1195
1240
200
text/javascript
Script
https://www.sis.gov.uk/js/updates.js
h2
991.76800018176
1746.6330002062
2121
5085
200
text/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
h2
994.62700029835
1021.0470003076
51481
133036
200
application/javascript
Script
https://www.sis.gov.uk/images/homepage-map-image.png
h2
1019.7230000049
1768.335999921
314007
313331
200
image/png
Image
https://www.sis.gov.uk/images/triangle-white-right.png
h2
1020.2339999378
1707.851999905
843
177
200
image/png
Image
https://www.sis.gov.uk/images/our-history-bg.jpg
h2
1021.7269998975
2021.9270000234
75005
74333
200
image/jpeg
Image
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
h2
1021.9399998896
1700.6100001745
30687
29997
200
image/jpeg
Image
https://www.sis.gov.uk/images/current-threats-bg.jpg
h2
1022.5410000421
1762.4929999001
96420
95729
200
image/jpeg
Image
https://www.sis.gov.uk/images/footer-background.png
h2
1022.9690000415
1761.9900000282
2966
2298
200
image/png
Image
https://www.sis.gov.uk/images/partners_sprite.png
h2
1023.8680001348
1947.6789999753
32255
31585
200
image/png
Image
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
h2
1024.5989998803
1723.9720001817
134546
133828
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.sis.gov.uk/fonts/BebasNeueBold.otf
h2
1025.0160000287
1885.7880001888
42832
42120
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
h2
1025.3119999543
1864.29399997
46112
45400
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
h2
1025.6670000963
1706.9749999791
46400
45684
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.google-analytics.com/analytics.js
h2
1083.8210000657
1089.3410001881
20631
50205
200
text/javascript
Script
https://5415737.fls.doubleclick.net/activityi;src=5415737;type=ats2020;cat=progrt22;ord=1;num=9420596139133;gtm=2wg3e0;auiddc=235093065.1647623930;~oref=https%3A%2F%2Fwww.sis.gov.uk%2F?
http/1.1
1110.5700000189
1164.969000034
1065
0
302
text/html
https://www.google-analytics.com/j/collect?v=1&_v=j96&a=1421821754&t=pageview&_s=1&dl=https%3A%2F%2Fwww.sis.gov.uk%2F&ul=en-us&de=UTF-8&dt=SIS%20%7C%20Home&sd=24-bit&sr=800x600&vp=1350x940&je=0&_u=YEBAAEABAAAAAC~&jid=1641981926&gjid=820012043&cid=59648348.1647623930&tid=UA-176747143-1&_gid=1253943329.1647623930&_r=1&gtm=2wg3e0MC7593M&z=537340637
h2
1139.9400001392
1145.8100001328
613
2
200
text/plain
XHR
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j96&tid=UA-176747143-1&cid=59648348.1647623930&jid=1641981926&gjid=820012043&_gid=1253943329.1647623930&_u=YEBAAEAAAAAAAC~&z=1278890809
h2
1148.8250000402
1152.2719999775
685
1
200
text/plain
XHR
https://5415737.fls.doubleclick.net/activityi;dc_pre=CM-ovLiV0PYCFQXVKAUdfo0DPw;src=5415737;type=ats2020;cat=progrt22;ord=1;num=9420596139133;gtm=2wg3e0;auiddc=235093065.1647623930;~oref=https%3A%2F%2Fwww.sis.gov.uk%2F?
h2
1165.7060002908
1185.4730001651
1289
487
200
text/html
Document
https://adservice.google.com/ddm/fls/i/dc_pre=CM-ovLiV0PYCFQXVKAUdfo0DPw;src=5415737;type=ats2020;cat=progrt22;ord=1;num=9420596139133;gtm=2wg3e0;auiddc=235093065.1647623930;~oref=https%3A%2F%2Fwww.sis.gov.uk%2F
h2
1202.0060000941
1217.9189999588
813
194
200
text/html
Document
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
h2
1900.1509998925
1919.3359999917
7464
19695
200
application/javascript
Script
https://cdn.cookielaw.org/consent/2356cdf0-a5a9-4e39-a446-aa86cedf65f1/2356cdf0-a5a9-4e39-a446-aa86cedf65f1.json
h2
1930.0890001468
2234.7980001941
2295
2862
200
application/x-javascript
XHR
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
h2
2238.2229999639
2270.6240001135
86942
386249
200
application/javascript
Script
https://cdn.cookielaw.org/consent/2356cdf0-a5a9-4e39-a446-aa86cedf65f1/492c32cf-9254-480b-8962-3ce7d811c0d6/en.json
h2
2302.1650002338
2338.5439999402
7583
20821
200
application/x-javascript
Fetch
https://cdn.cookielaw.org/scripttemplates/6.19.0/assets/otFlat.json
h2
2359.4460003078
2672.3990002647
3907
12794
200
application/json
Fetch
data
2692.7539999597
2692.9339999333
0
817
200
image/svg+xml
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
483.963
8.972
493.607
7.952
1029.383
23.917
1053.316
35.73
1102.712
10.767
1114.168
37.166
1157.03
24.705
1230.452
8.137
1262.35
8.63
1752.353
5.167
1773.205
9.384
1858.253
67.944
1931.099
9.938
1942.961
7.326
1962.574
8.946
2326.687
14.633
2383.153
17.482
2715.244
38.362
2769.763
7.155
3977.246
5.29
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Eliminate render-blocking resources
Resources, such as JavaScript and style sheets, can block the first paint of the page. Sis.gov.uk should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
Properly size images — Potential savings of 106 KiB
Images can slow down the page's load time. Sis.gov.uk should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/images/logo-smf-2021.png
34948
30419
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
30259
29031
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
20479
19648
https://www.sis.gov.uk/images/logo-bhm.png
12331
10733
https://www.sis.gov.uk/images/logo-raceatwork.png
11149
9701
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
9443
8602
Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Sis.gov.uk should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Sis.gov.uk should consider minifying CSS files.
Minify JavaScript — Potential savings of 73 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Sis.gov.uk should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/js/video.js
151670
69754
https://www.sis.gov.uk/js/jquery.fancybox.js
14698
5012
Reduce unused CSS — Potential savings of 14 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Sis.gov.uk should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/css/video-js.css
14071
14071
Reduce unused JavaScript — Potential savings of 107 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/js/video.js
151670
66565
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
86942
42841
Efficiently encode images — Potential savings of 126 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/images/current-threats-bg.jpg
95729
65206
https://www.sis.gov.uk/images/our-history-bg.jpg
74333
44753
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
29997
19208
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Initial server response time was short — Root document took 160 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.sis.gov.uk/
161.464
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Sis.gov.uk should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 10 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
6155
https://www.sis.gov.uk/js/video.js
4532
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.sis.gov.uk/images/homepage-map-image.png
0
Avoids enormous network payloads — Total size was 2,531 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.sis.gov.uk/images/our-mission-bg.png
1181290
https://www.sis.gov.uk/images/homepage-map-image.png
314007
https://www.sis.gov.uk/js/video.js
151670
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
134546
https://www.sis.gov.uk/images/current-threats-bg.jpg
96420
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
86942
https://www.sis.gov.uk/images/our-history-bg.jpg
75005
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
51481
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
46400
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
46112
Avoids an excessive DOM size — 174 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
174
Maximum DOM Depth
GLOBAL OPERATIONS
9
Maximum Child Elements
body
19
Avoid chaining critical requests — 23 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Sis.gov.uk should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.2 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.sis.gov.uk/
204.404
4.187
1.491
Unattributable
97.335
20.993
0.159
https://www.sis.gov.uk/js/video.js
93.549
75.713
12.03
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
63.318
54.526
3.586
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
53.573
27.963
5.983
Minimizes main-thread work — 0.6 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
250.865
Other
154.723
Style & Layout
88.303
Rendering
65.481
Script Parsing & Compilation
31.524
Parse HTML & CSS
27.253
Garbage Collection
5.243
Keep request counts low and transfer sizes small — 55 requests • 2,531 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
55
2591994
Image
16
1867980
Script
15
391694
Font
4
269890
Stylesheet
9
38869
Other
8
17031
Document
3
6530
Media
0
0
Third-party
12
184768
Minimize third-party usage — Third-party code blocked the main thread for 0 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
108191
0
SHOW DETAILS
51481
0
SHOW DETAILS
21244
0
SHOW DETAILS
3852
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
body > main#maincontent > section#home-banner > div#map-graphic
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
body > main#maincontent > section#home-banner > div#map-graphic
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
ABOUT US
0.00048505182199856
We use cookies to make this site simpler. Cookies Settings Reject All Cookies …
0.00045862884160757
CAREERS
0.00040051996920213
APPLY NOW
0.00036429203228937
HOME
0.00036227936912755
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
Avoid non-composited animations — 1 animated element found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
We use cookies to make this site simpler. Cookies Settings Reject All Cookies …
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of sis.gov.uk on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

Largest Contentful Paint — 1.7 s
The timing of the largest text or image that is painted.

Audits

First Meaningful Paint — 1.5 s
The time taken for the primary content of the page to be rendered.

Other

Avoid multiple page redirects — Potential savings of 340 ms
Redirects can cause additional delays before the page can begin loading. Sis.gov.uk should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://sis.gov.uk/
190
https://sis.gov.uk/
150
https://www.sis.gov.uk/
0

Metrics

Speed Index — 2.5 s
The time taken for the page contents to be visibly populated.

Other

Serve images in next-gen formats — Potential savings of 1,547 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/images/our-mission-bg.png
1180616
1086050.05
https://www.sis.gov.uk/images/homepage-map-image.png
313331
259721.05
https://www.sis.gov.uk/images/current-threats-bg.jpg
95729
81343.05
https://www.sis.gov.uk/images/our-history-bg.jpg
74333
60167.6
https://www.sis.gov.uk/images/logo-smf-2021.png
34948
26947.75
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
29997
25809.35
https://www.sis.gov.uk/images/partners_sprite.png
31585
25580.65
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
30259
19020.25
Serve static assets with an efficient cache policy — 43 resources found
Sis.gov.uk can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.google-analytics.com/analytics.js
7200000
20631
https://www.sis.gov.uk/images/our-mission-bg.png
14400000
1181290
https://www.sis.gov.uk/images/homepage-map-image.png
14400000
314007
https://www.sis.gov.uk/js/video.js
14400000
151670
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
14400000
134546
https://www.sis.gov.uk/images/current-threats-bg.jpg
14400000
96420
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
14400000
86942
https://www.sis.gov.uk/images/our-history-bg.jpg
14400000
75005
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
14400000
46400
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
14400000
46112
https://www.sis.gov.uk/fonts/BebasNeueBold.otf
14400000
42832
https://www.sis.gov.uk/images/logo-smf-2021.png
14400000
35618
https://www.sis.gov.uk/js/jquery-1.11.3.min.js
14400000
33935
https://www.sis.gov.uk/images/partners_sprite.png
14400000
32255
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
14400000
30933
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
14400000
30687
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
14400000
21153
https://www.sis.gov.uk/js/jquery.fancybox.js
14400000
14698
https://www.sis.gov.uk/css/video-js.css
14400000
14071
https://www.sis.gov.uk/images/logo-bhm.png
14400000
13001
https://www.sis.gov.uk/images/logo-raceatwork.png
14400000
11819
https://www.sis.gov.uk/slick/slick.min.js
14400000
11044
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
14400000
10119
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
14400000
7464
https://www.sis.gov.uk/css/main.css
14400000
7313
https://www.sis.gov.uk/images/logo.png
14400000
6632
https://www.sis.gov.uk/css/updates.css
14400000
6452
https://www.sis.gov.uk/images/tri-agencies.png
14400000
5232
https://www.sis.gov.uk/js/jquery.bgswitcher.js
14400000
3791
https://www.sis.gov.uk/css/hamburgers.min.css
14400000
3009
https://www.sis.gov.uk/images/footer-background.png
14400000
2966
https://www.sis.gov.uk/js/breakingNews.js
14400000
2199
https://www.sis.gov.uk/css/jquery.fancybox.css
14400000
2133
https://www.sis.gov.uk/js/updates.js
14400000
2121
https://www.sis.gov.uk/scripts/scripts.js
14400000
2096
https://www.sis.gov.uk/css/breakingNews.css
14400000
1878
https://www.sis.gov.uk/slick/slick-theme.css
14400000
1567
https://www.sis.gov.uk/js/jquery.parallax-1.1.3.js
14400000
1510
https://www.sis.gov.uk/slick/slick.css
14400000
1274
https://www.sis.gov.uk/scripts/amend-hrefs.js
14400000
1195
https://www.sis.gov.uk/css/ekko-lightbox.css
14400000
1172
https://www.sis.gov.uk/js/navigation.js
14400000
917
https://www.sis.gov.uk/images/triangle-white-right.png
14400000
843
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
699.37300030142
https://www.sis.gov.uk/fonts/BebasNeueBold.otf
860.77200016007
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
838.98200001568
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
681.30799988285
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://www.sis.gov.uk/images/our-mission-bg.png
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
https://www.sis.gov.uk/images/logo-raceatwork.png
https://www.sis.gov.uk/images/logo-bhm.png
https://www.sis.gov.uk/images/logo-smf-2021.png
https://www.sis.gov.uk/images/logo.png
100

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of sis.gov.uk. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Sis.gov.uk may provide assistance to deaf or hearing-impaired users with captions on videos.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
83

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that sis.gov.uk should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Serves images with appropriate resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.11.3
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://sis.gov.uk/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
4
Medium

Audits

Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.sis.gov.uk/js/video.js
https://www.sis.gov.uk/js/video.js.map
90

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for sis.gov.uk. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of sis.gov.uk on mobile screens.
Document uses legible font sizes
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Tap targets are sized appropriately
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Content Best Practices

Document does not have a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
22

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of sis.gov.uk. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of sis.gov.uk on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Avg. (All Categories) 70
Performance 58
Accessibility 100
Best Practices 75
SEO 88
PWA 30
0–49 (Fail) 50–89 (Average) 90–100 (Pass)
URL: https://www.sis.gov.uk/
Updated: 18th March, 2022

2.47 seconds
First Contentful Paint (FCP)
67%
13%
20%

0.01 seconds
First Input Delay (FID)
98%
2%
0%

Simulate loading on mobile
58

Performance

Indicates how well the page is performing and highlights opportunities where performance may be improved for sis.gov.uk. This includes details about optimizing page load times which can result in a better user experience.

Metrics

Total Blocking Time — 80 ms
The total blocking time is the sum of all time periods between First Contentful Paint and Time to Interactive (when task length exceeded 50ms).
Cumulative Layout Shift — 0.016
Cumulative Layout Shift is the measurement of visible elements collective movement within the viewport.
View Data

Audits

Max Potential First Input Delay — 110 ms
Users could experience a delay when interacting with the page.
Network Requests
Below is a list of network requests that were made during page load.
URL Protocol Start Time (Ms) End Time (Ms) Transfer Size (Bytes) Resource Size (Bytes) Status Code MIME Type Resource Type
http://sis.gov.uk/
http/1.1
0
30.968999955803
394
0
301
text/plain
https://sis.gov.uk/
http/1.1
31.322999973781
187.06300004851
479
0
301
text/plain
https://www.sis.gov.uk/
h2
187.49799998477
966.16599999834
4422
15257
200
text/html
Document
https://www.sis.gov.uk/css/ekko-lightbox.css
h2
978.38999994565
1114.2909999471
1175
1175
200
text/css
Stylesheet
https://www.sis.gov.uk/css/jquery.fancybox.css
h2
978.58400002588
1005.0620000111
2136
5168
200
text/css
Stylesheet
https://www.sis.gov.uk/css/breakingNews.css
h2
979.03199994471
1010.5570000596
1883
4848
200
text/css
Stylesheet
https://www.sis.gov.uk/css/video-js.css
h2
979.55799999181
1437.7150000073
14064
45633
200
text/css
Stylesheet
https://www.sis.gov.uk/slick/slick.css
h2
980.04000005312
1446.2620000122
1271
1895
200
text/css
Stylesheet
https://www.sis.gov.uk/slick/slick-theme.css
h2
980.22300004959
1004.3809999479
1574
3349
200
text/css
Stylesheet
https://www.sis.gov.uk/css/hamburgers.min.css
h2
980.31799995806
1390.82900004
3002
22467
200
text/css
Stylesheet
https://www.sis.gov.uk/css/main.css
h2
980.44900002424
1126.6220000107
7313
39796
200
text/css
Stylesheet
https://www.sis.gov.uk/css/updates.css
h2
980.89999996591
1397.2520000534
6448
35194
200
text/css
Stylesheet
https://www.sis.gov.uk/js/jquery-1.11.3.min.js
h2
980.99199996796
1013.4839999955
33935
95962
200
text/javascript
Script
https://www.sis.gov.uk/images/logo.png
h2
1450.5989999743
1967.8540000459
6628
5959
200
image/png
Image
https://www.sis.gov.uk/images/our-mission-bg.png
h2
1450.7740000263
2549.1760000587
1181290
1180616
200
image/png
Image
https://www.sis.gov.uk/images/tri-agencies.png
h2
1450.8810000261
1825.0339999795
5225
4556
200
image/png
Image
https://www.sis.gov.uk/images/logo-bhm.png
h2
1451.008999953
1476.3500000117
13006
12331
200
image/png
Image
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
h2
1451.1829999974
2227.7930000564
10112
9443
200
image/png
Image
https://www.sis.gov.uk/images/logo-raceatwork.png
h2
1451.3260000385
1817.360999994
11823
11149
200
image/png
Image
https://www.sis.gov.uk/images/logo-smf-2021.png
h2
1451.4059999492
2054.6659999527
35618
34948
200
image/png
Image
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
h2
1451.526000048
2051.4680000488
30929
30259
200
image/png
Image
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
h2
1451.659000013
1482.9590000445
21156
20479
200
image/png
Image
https://www.sis.gov.uk/js/jquery.parallax-1.1.3.js
h2
1438.9509999892
1847.0919999527
1503
1839
200
text/javascript
Script
https://www.sis.gov.uk/js/jquery.fancybox.js
h2
1447.4590000464
1963.8470000355
14698
50749
200
text/javascript
Script
https://www.sis.gov.uk/js/breakingNews.js
h2
1449.2999999784
1477.0039999858
2200
5485
200
text/javascript
Script
https://www.sis.gov.uk/js/jquery.bgswitcher.js
h2
1449.4649999542
1822.696999996
3788
12273
200
text/javascript
Script
https://www.sis.gov.uk/js/video.js
h2
1449.6519999811
1479.5539999614
151671
719159
200
text/javascript
Script
https://www.sis.gov.uk/js/navigation.js
h2
1449.7670000419
1480.5959999794
920
381
200
text/javascript
Script
https://www.sis.gov.uk/slick/slick.min.js
h2
1449.8959999764
1488.481999957
11045
42864
200
text/javascript
Script
https://www.sis.gov.uk/scripts/scripts.js
h2
1450.1450000098
1499.8449999839
2103
5765
200
text/javascript
Script
https://www.sis.gov.uk/scripts/amend-hrefs.js
h2
1450.2649999922
1819.3629999878
1195
1240
200
text/javascript
Script
https://www.sis.gov.uk/js/updates.js
h2
1450.4629999865
1855.9909999603
2125
5085
200
text/javascript
Script
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
h2
1451.7879999476
1466.9770000037
51482
133036
200
application/javascript
Script
https://www.sis.gov.uk/images/homepage-map-image.png
h2
1469.7470000247
2517.6389999688
314003
313331
200
image/png
Image
https://www.sis.gov.uk/images/triangle-white-right.png
h2
1470.486999955
1593.9220000291
848
177
200
image/png
Image
https://www.sis.gov.uk/images/our-history-bg.jpg
h2
1471.1759999627
2155.3569999523
75005
74333
200
image/jpeg
Image
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
h2
1471.8209999846
1851.1880000588
30687
29997
200
image/jpeg
Image
https://www.sis.gov.uk/images/current-threats-bg.jpg
h2
1472.012000042
2161.3000000361
96401
95729
200
image/jpeg
Image
https://www.sis.gov.uk/images/footer-background.png
h2
1472.444999963
1880.2770000184
2970
2298
200
image/png
Image
https://www.sis.gov.uk/images/partners_sprite_small.png
h2
1472.9669999797
1988.4430000093
15196
14526
200
image/png
Image
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
h2
1473.4669999452
2343.7899999553
134542
133828
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
h2
1473.9200000186
1838.4729999816
46116
45400
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.sis.gov.uk/fonts/BebasNeueBold.otf
h2
1474.0189999575
1510.8250000048
42837
42120
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
h2
1474.3220000528
1499.2370000109
46401
45684
200
application/vnd.oasis.opendocument.formula-template
Font
https://www.google-analytics.com/analytics.js
h2
1541.4889999665
1546.5000000549
20631
50205
200
text/javascript
Script
https://5415737.fls.doubleclick.net/activityi;src=5415737;type=ats2020;cat=progrt22;ord=1;num=6763306259093;gtm=2wg3e0;auiddc=339811704.1647623950;~oref=https%3A%2F%2Fwww.sis.gov.uk%2F?
h2
1560.9689999837
1620.3059999971
1262
453
200
text/html
Document
https://www.google-analytics.com/j/collect?v=1&_v=j96&a=2136584422&t=pageview&_s=1&dl=https%3A%2F%2Fwww.sis.gov.uk%2F&ul=en-us&de=UTF-8&dt=SIS%20%7C%20Home&sd=24-bit&sr=360x640&vp=360x640&je=0&_u=YEBAAEABAAAAAC~&jid=604182966&gjid=2120870985&cid=72322129.1647623950&tid=UA-176747143-1&_gid=140472060.1647623950&_r=1&gtm=2wg3e0MC7593M&z=1317893309
h2
1580.5910000345
1584.324000054
613
2
200
text/plain
XHR
https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j96&tid=UA-176747143-1&cid=72322129.1647623950&jid=604182966&gjid=2120870985&_gid=140472060.1647623950&_u=YEBAAEAAAAAAAC~&z=133774011
h2
1586.1759999534
1595.7019999623
685
1
200
text/plain
XHR
https://adservice.google.com/ddm/fls/i/src=5415737;type=ats2020;cat=progrt22;ord=1;num=6763306259093;gtm=2wg3e0;auiddc=339811704.1647623950;~oref=https%3A%2F%2Fwww.sis.gov.uk%2F
h2
1637.3720000265
1655.3729999578
813
194
200
text/html
Document
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
h2
2041.7919999454
2074.5459999889
7464
19695
200
application/javascript
Script
https://cdn.cookielaw.org/consent/2356cdf0-a5a9-4e39-a446-aa86cedf65f1/2356cdf0-a5a9-4e39-a446-aa86cedf65f1.json
h2
2082.2860000189
2100.3770000534
2296
2862
200
application/x-javascript
XHR
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
h2
2103.8359999657
2134.0749999508
86946
386249
200
application/javascript
Script
https://cdn.cookielaw.org/consent/2356cdf0-a5a9-4e39-a446-aa86cedf65f1/492c32cf-9254-480b-8962-3ce7d811c0d6/en.json
h2
2165.3759999899
2203.2330000075
7583
20821
200
application/x-javascript
Fetch
https://cdn.cookielaw.org/scripttemplates/6.19.0/assets/otFlat.json
h2
2219.1909999819
2239.5930000348
3908
12794
200
application/json
Fetch
data
2255.1639999729
2255.3179999813
0
817
200
image/svg+xml
Image
Network Round Trip Times — 0 ms
High Network RTT (Round Trip Times) can have a large impact on performance. Providing servers geographically closer to the user could improve performance.
Server Backend Latencies — 0 ms
High server latencies indicate the server is overloaded or has a poor backend performance.
Tasks
Below is a list of the top-level main thread tasks that executed during page load.
Start Time (Ms) End Time (Ms)
1020.903
7.654
1029.194
6.621
1499.433
17.05
1516.494
25.981
1559.887
6.963
1569.631
11.079
1584.944
26.52
1615.804
17.044
1675.678
9.121
1710.318
7.343
1893.095
7.262
2018.942
56.348
2078.967
5.241
2084.847
7.598
2128.574
7.304
2201.758
15.378
2258.332
12.649
2293.031
26.281
2407.312
8.939
2590.057
27.321
2824.069
7.126
Diagnostics
Below is a collection of useful page vitals.
View Data
Metrics
Below is a collection of metrics.
View Data
Script Treemap Data
Provide as required, for treemap app.

Other

Defer offscreen images
Time to Interactive can be slowed down by resources on the page. Sis.gov.uk should consider lazy-loading offscreen and hidden images.
Minify CSS
Cascading Style Sheets (CSS) files can contribute to network payload sizes. Sis.gov.uk should consider minifying CSS files.
Enable text compression
Text-based resources should be served with compression, such as gzip, deflate or brotli.
Preconnect to required origins
Resource hints, such as 'preconnect' or 'dns-prefetch', may assist in establishing early connections to important third-party origins.
Preload key requests
Key requests can be preloaded by using '<link rel=preload>'. Sis.gov.uk should consider using '<link rel=preload>' to prioritize fetching resources that are currently requested later in page load.
Use video formats for animated content
Large GIFs are inefficient for delivering animated content. It is recommended to use MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF.
Remove duplicate modules in JavaScript bundles
Ensure that no duplicate JavaScript modules from bundles exist to reduce bytes consumed by network activity.
Avoid serving legacy JavaScript to modern browsers — Potential savings of 10 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. For bundled JavaScript it is recommended to adopt a modern script deployment strategy using module/nomodule feature detection. This will reduce the amount of code shipped to modern browsers.
URL Potential Savings (Bytes)
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
6156
https://www.sis.gov.uk/js/video.js
4532
Preload Largest Contentful Paint image
It is recommended to preload images used by LCP elements, to improve LCP time.
URL Potential Savings (Ms)
https://www.sis.gov.uk/images/homepage-map-image.png
0
Avoids enormous network payloads — Total size was 2,513 KiB
Large network payloads can cost users money and are linked to long load times.
URL Transfer Size (Bytes)
https://www.sis.gov.uk/images/our-mission-bg.png
1181290
https://www.sis.gov.uk/images/homepage-map-image.png
314003
https://www.sis.gov.uk/js/video.js
151671
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
134542
https://www.sis.gov.uk/images/current-threats-bg.jpg
96401
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
86946
https://www.sis.gov.uk/images/our-history-bg.jpg
75005
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
51482
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
46401
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
46116
Avoids an excessive DOM size — 174 elements
A large DOM (Document Object Model) will increase memory usage, cause longer system calculations as well as costly layout reflows.
Statistic Element Value
Total DOM Elements
174
Maximum DOM Depth
GLOBAL OPERATIONS
9
Maximum Child Elements
body
19
Avoid chaining critical requests — 23 chains found
Below is a list of Critical Request Chains, which shows which resources are loaded with a high priority. Sis.gov.uk should consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
User Timing marks and measures
Make use of the User Timing API to measure an app's real-world performance during key user experiences.
JavaScript execution time — 0.7 s
JavaScript (JS) execution time can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
URL Total CPU Time (Ms) Script Evaluation (Ms) Script Parse (Ms)
https://www.sis.gov.uk/
994.648
14.056
5.2
Unattributable
359.06
62.188
0.64
https://www.sis.gov.uk/js/video.js
213.356
159.968
45.44
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
200.712
170.068
12.852
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
168.56
80.14
28.008
https://www.sis.gov.uk/js/jquery-1.11.3.min.js
92.776
75.684
6.6
https://www.google-analytics.com/analytics.js
77.216
65.468
4.08
Keep request counts low and transfer sizes small — 54 requests • 2,513 KiB
It is advised to add a budgets.json file in order to set budgets for the quantity and size of page resources.
Resource Type Requests Transfer Size (Bytes)
Total
54
2573820
Image
16
1850897
Script
15
391706
Font
4
269896
Stylesheet
9
38866
Other
7
15958
Document
3
6497
Media
0
0
Third-party
11
183683
Minimize third-party usage — Third-party code blocked the main thread for 50 ms
It is advised to either limit, remove or delay the loading of redundant third-party code which may be significantly impacting load performance.
Third-Party Transfer Size (Bytes) Main-Thread Blocking Time (Ms)
SHOW DETAILS
51482
36.108
SHOW DETAILS
21244
9.724
SHOW DETAILS
108197
0
SHOW DETAILS
2760
0
Lazy load third-party resources with facades
Consider replacing third-party embeds with a facade until they are required (use lazy loading).
Largest Contentful Paint element — 1 element found
The element which was identified as the Largest Contentful Paint.
Element
body > main#maincontent > section#home-banner > div#map-graphic
Largest Contentful Paint image was not lazily loaded
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint.
Element
body > main#maincontent > section#home-banner > div#map-graphic
Avoid large layout shifts — 5 elements found
Below is a list of all DOM elements that contribute to the CLS of the page.
Element CLS Contribution
We use cookies to make this site simpler. Cookies Settings Reject All Cookies …
0.01215087890625
We are SIS – the UK’s Secret Intelligence Service - also known as MI6. Our peop…
0.0020638020833333
Reject All Cookies
0.00063758182525635
Accept All Cookies
0.00063758182525635
Cookies Settings
0.00020134162902832
Uses passive listeners to improve scrolling performance
Improve the page's scroll performance by marking touch and wheel event listeners as 'passive'.
Avoids `document.write()`
Avoid or limit the use of external scripts that are dynamically injected via 'document.write()' as users on slow connections will be delayed by tens of seconds.
Avoid long main-thread tasks — 9 long tasks found
Below is a list of the longest tasks on the main thread, which is useful when identifying the worst input delay contributors.
URL Start Time (Ms) Duration (Ms)
https://www.sis.gov.uk/js/jquery.fancybox.js
8490
113
https://www.sis.gov.uk/js/jquery-1.11.3.min.js
2490
68
https://www.google-analytics.com/analytics.js
4965
68
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
10312
62
https://www.sis.gov.uk/
1942
55
https://www.googletagmanager.com/gtm.js?id=GTM-MC7593M
3832
53
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
10425
53
https://www.sis.gov.uk/
1890
52
Unattributable
10374
51
Avoid non-composited animations — 1 animated element found
It is recommended to avoid non-composited animations which are often janky and increase CLS.
Element Name
We use cookies to make this site simpler. Cookies Settings Reject All Cookies …
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of sis.gov.uk on mobile screens.
Avoids `unload` event listeners
The 'unload' event does not fire reliably, causing issues with browser optimizations such as the Back-Forward Cache. It is recommended that 'pagehide' or 'visibilitychange' events are used instead.

Budgets

Performance budget
It is advised to keep the quantity and size of all network requests under the targets set by the provided performance budget.
Timing budget
It is advised to set a timing budget to monitor the performance of your site.

Metrics

First Contentful Paint — 2.4 s
The time taken for the first image or text on the page to be rendered.

Other

Eliminate render-blocking resources — Potential savings of 150 ms
Resources, such as JavaScript and style sheets, can block the first paint of the page. Sis.gov.uk should consider delivering critical JavaScript/style sheets (JS/CSS) inline and deferring all non-critical JS/CSS.
URL Transfer Size (Bytes) Potential Savings (Ms)
https://www.sis.gov.uk/css/video-js.css
14064
150
https://www.sis.gov.uk/slick/slick.css
1271
150
Properly size images — Potential savings of 92 KiB
Images can slow down the page's load time. Sis.gov.uk should consider serving more appropriate-sized images.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
30259
27377
https://www.sis.gov.uk/images/logo-smf-2021.png
34948
24328
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
20479
18528
https://www.sis.gov.uk/images/logo-bhm.png
12331
8584
https://www.sis.gov.uk/images/logo-raceatwork.png
11149
7772
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
9443
7470
Minify JavaScript — Potential savings of 73 KiB
JavaScript (JS) files can contribute to network payload sizes and increase script parse times. Sis.gov.uk should consider minifying JS files.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/js/video.js
151671
69755
https://www.sis.gov.uk/js/jquery.fancybox.js
14698
5012
Reduce unused CSS — Potential savings of 14 KiB
Dead and/or unused rules in Style Sheets (CSS) can contribute to network payload sizes. Sis.gov.uk should consider removing dead rules from style sheets and deferring the loading of CSS not used for above-the-fold content.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/css/video-js.css
14064
14064
Reduce unused JavaScript — Potential savings of 107 KiB
It is advised to remove unused JavaScript in order to reduce bytes consumed by network activity.
URL Transfer Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/js/video.js
151671
66566
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
86946
42843
Efficiently encode images — Potential savings of 126 KiB
Unoptimized images can consume more cellular data than what is necessary.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/images/current-threats-bg.jpg
95729
65206
https://www.sis.gov.uk/images/our-history-bg.jpg
74333
44753
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
29997
19208
Minimize main-thread work — 2.3 s
Main-thread work timing can be lowered by reducing the time required for parsing, compiling and executing JS. Delivering smaller JS payloads may help with this.
Category Time Spent (Ms)
Script Evaluation
681.388
Other
587.672
Rendering
448.288
Style & Layout
335.16
Script Parsing & Compilation
127.896
Parse HTML & CSS
92.608
Garbage Collection
17.304

Metrics

Time to Interactive — 9.4 s
The time taken for the page to become fully interactive.
Speed Index — 7.1 s
The time taken for the page contents to be visibly populated.
Largest Contentful Paint — 10.3 s
The timing of the largest text or image that is painted.

Audits

First Meaningful Paint — 5.5 s
The time taken for the primary content of the page to be rendered.

Other

Serve images in next-gen formats — Potential savings of 1,533 KiB
Consider JPEG 2000, JPEG XR or WebP image formats which provide better compression than PNG and JPEG.
URL Resource Size (Bytes) Potential Savings (Bytes)
https://www.sis.gov.uk/images/our-mission-bg.png
1180616
1086050.05
https://www.sis.gov.uk/images/homepage-map-image.png
313331
259721.05
https://www.sis.gov.uk/images/current-threats-bg.jpg
95729
81343.05
https://www.sis.gov.uk/images/our-history-bg.jpg
74333
60167.6
https://www.sis.gov.uk/images/logo-smf-2021.png
34948
26947.75
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
29997
25809.35
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
30259
19020.25
https://www.sis.gov.uk/images/partners_sprite_small.png
14526
10692.8
Reduce initial server response time — Root document took 780 ms
It is advised to keep the server response time short for the main document, because all other requests depend on it.
URL Time Spent (Ms)
https://www.sis.gov.uk/
779.661
Avoid multiple page redirects — Potential savings of 1,110 ms
Redirects can cause additional delays before the page can begin loading. Sis.gov.uk should avoid multiple or unnecessary page redirects.
URL Time Spent (Ms)
http://sis.gov.uk/
630
https://sis.gov.uk/
480
https://www.sis.gov.uk/
0
Serve static assets with an efficient cache policy — 43 resources found
Sis.gov.uk can speed up repeat visits by increasing the cache lifetime, which is essentially how long before a cached copy expires.
URL Cache TTL (Ms) Transfer Size (Bytes)
https://www.google-analytics.com/analytics.js
7200000
20631
https://www.sis.gov.uk/images/our-mission-bg.png
14400000
1181290
https://www.sis.gov.uk/images/homepage-map-image.png
14400000
314003
https://www.sis.gov.uk/js/video.js
14400000
151671
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
14400000
134542
https://www.sis.gov.uk/images/current-threats-bg.jpg
14400000
96401
https://cdn.cookielaw.org/scripttemplates/6.19.0/otBannerSdk.js
14400000
86946
https://www.sis.gov.uk/images/our-history-bg.jpg
14400000
75005
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
14400000
46401
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
14400000
46116
https://www.sis.gov.uk/fonts/BebasNeueBold.otf
14400000
42837
https://www.sis.gov.uk/images/logo-smf-2021.png
14400000
35618
https://www.sis.gov.uk/js/jquery-1.11.3.min.js
14400000
33935
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
14400000
30929
https://www.sis.gov.uk/images/british-intel-explained-bg.jpg
14400000
30687
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
14400000
21156
https://www.sis.gov.uk/images/partners_sprite_small.png
14400000
15196
https://www.sis.gov.uk/js/jquery.fancybox.js
14400000
14698
https://www.sis.gov.uk/css/video-js.css
14400000
14064
https://www.sis.gov.uk/images/logo-bhm.png
14400000
13006
https://www.sis.gov.uk/images/logo-raceatwork.png
14400000
11823
https://www.sis.gov.uk/slick/slick.min.js
14400000
11045
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
14400000
10112
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js
14400000
7464
https://www.sis.gov.uk/css/main.css
14400000
7313
https://www.sis.gov.uk/images/logo.png
14400000
6628
https://www.sis.gov.uk/css/updates.css
14400000
6448
https://www.sis.gov.uk/images/tri-agencies.png
14400000
5225
https://www.sis.gov.uk/js/jquery.bgswitcher.js
14400000
3788
https://www.sis.gov.uk/css/hamburgers.min.css
14400000
3002
https://www.sis.gov.uk/images/footer-background.png
14400000
2970
https://www.sis.gov.uk/js/breakingNews.js
14400000
2200
https://www.sis.gov.uk/css/jquery.fancybox.css
14400000
2136
https://www.sis.gov.uk/js/updates.js
14400000
2125
https://www.sis.gov.uk/scripts/scripts.js
14400000
2103
https://www.sis.gov.uk/css/breakingNews.css
14400000
1883
https://www.sis.gov.uk/slick/slick-theme.css
14400000
1574
https://www.sis.gov.uk/js/jquery.parallax-1.1.3.js
14400000
1503
https://www.sis.gov.uk/slick/slick.css
14400000
1271
https://www.sis.gov.uk/scripts/amend-hrefs.js
14400000
1195
https://www.sis.gov.uk/css/ekko-lightbox.css
14400000
1175
https://www.sis.gov.uk/js/navigation.js
14400000
920
https://www.sis.gov.uk/images/triangle-white-right.png
14400000
848
Ensure text remains visible during webfont load
Make use of the font-display CSS feature, which will ensure text is user-visible while webfonts are loading.
URL Potential Savings (Ms)
https://www.sis.gov.uk/fonts/SourceSansPro-Regular.otf
870.3230000101
https://www.sis.gov.uk/fonts/BebasNeueBook.otf
364.55299996305
https://www.sis.gov.uk/fonts/BebasNeueBold.otf
36.806000047363
https://www.sis.gov.uk/fonts/BebasNeueRegular.otf
24.914999958128
Image elements do not have explicit `width` and `height`
Reduce layout shifts and improve CLS by setting explicit width and height properties on image elements.
URL
https://www.sis.gov.uk/images/logo-stonewall-top100-2022.png
https://www.sis.gov.uk/images/logo-stonewall-gold-2022.png
https://www.sis.gov.uk/images/logo-disability-confident-leader.png
https://www.sis.gov.uk/images/logo-raceatwork.png
https://www.sis.gov.uk/images/logo-bhm.png
https://www.sis.gov.uk/images/logo-smf-2021.png
https://www.sis.gov.uk/images/logo.png
First Contentful Paint (3G) — 4958 ms
The time taken for the first image or text on the page to be rendered while on a 3G network.
100

Accessibility

Indicates how accessible the page is and highlights opportunities where the page can be made more accessible to users of sis.gov.uk. This includes details about various page attributes that can be optimized.

Navigation

`[accesskey]` values are unique
Access keys assist users with focusing on different parts of the page. Each access key should be unique for proper navigation.
The page contains a heading, skip link, or landmark region
It is advised to provide ways to bypass repetitive content, allowing users to navigate the page efficiently.
`[id]` attributes on active, focusable elements are unique
Ensure all focusable elements have a unique id value to allow them to be visible to users of assistive technologies, like a screen reader.
Heading elements appear in a sequentially-descending order
Properly order all headers and do not skip heading levels to better the navigation and readability for users of assistive technologies, like a screen reader.
No element has a `[tabindex]` value greater than 0
Although technically valid, a tabindex value greater than 0 often creates frustrating experiences for users who rely on assistive technologies.

ARIA

`[aria-*]` attributes match their roles
Avoid mismatching 'aria-*' attributes and their 'role' value, as it invalidates the attribute.
`button`, `link`, and `menuitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-hidden="true"]` is not present on the document `<body>`
If aria-hidden=true is set on the document body, assistive technologies, like a screen reader will work inconsistently.
`[aria-hidden="true"]` elements do not contain focusable descendents
Interactive elements within an aria-hidden=true element are unavailable to users of assistive technologies, like a screen reader.
ARIA input fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when an input field does not have an accessible name specified.
ARIA `meter` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `progressbar` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[role]`s have all required `[aria-*]` attributes
Some ARIA roles have required 'aria-*' attributes, which provide essential information about state and functionality.
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
Some ARIA parent roles cannot perform their intended functions if specific child roles are not used.
`[role]`s are contained by their required parent element
Some ARIA child roles cannot perform their intended functions if specific parent roles are not used.
`[role]` values are valid
All ARIA roles require valid values to perform their intended functions.
ARIA toggle fields have accessible names
Generic names are announced to users of assistive technologies, like a screen reader, when a toggle field does not have an accessible name specified.
ARIA `tooltip` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
ARIA `treeitem` elements have accessible names
Without accessible names on elements, screen readers will default to announcing a generic name, which means your content will be less accessible to users who rely on screen readers.
`[aria-*]` attributes have valid values
ARIA attributes cannot be interpreted with invalid values when used by screen readers and other assistive technologies.
`[aria-*]` attributes are valid and not misspelled
ARIA attributes cannot be interpreted with invalid names when used by screen readers and other assistive technologies.
ARIA IDs are unique
Ensure all ARIA ID values are unique to prevent elements from being overlooked by assistive technologies, like a screen reader.

Names and labels

Buttons have an accessible name
Buttons become unusable as they are announced simply as "button" when the button does not have an accessible name, when used by screen readers and other assistive technologies.
Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
No form fields have multiple labels
Having multiple labels for form fields can be confusing to assistive technologies, like a screen reader.
`<frame>` or `<iframe>` elements have a title
Screen reader users and other assistive technology users rely on frame titles to describe the contents of frames.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
`<input type="image">` elements have `[alt]` text
Input buttons with alternative text assist screen readers and other assistive technology users to understand its purpose.
Form elements have associated labels
Screen readers and other assistive technologies rely on labels to properly announce form controls.
Links have a discernible name
In order to improve the navigation for screen reader and other assistive technology users, use link text that is unique, focusable and discernible.
`<object>` elements have alternate text
It is advised that alt text is used on '<object>' elements in order to provide meaning to screen reader and other assistive technology users, as these technologies are unable to translate non-text content.

Contrast

Background and foreground colors have a sufficient contrast ratio
Many (if not most) users find low-contrast text difficult or impossible to read.

Tables and lists

`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Screen readers and other assistive technologies may produce poor and inaccurate output when definition lists are not properly marked up.
Definition list items are wrapped in `<dl>` elements
In order for screen readers and other assistive technologies to properly announce definition list items ('<dt>' and '<dd>'), they must be wrapped in parent a '<dl>' element.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Use proper list structure to aid screen readers and other assistive technologies.
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
In order for screen readers to announce list items, ensure that list items ('<li>') are contained within parent '<ul>' or '<ol>' tags.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that '<td>' cells using the headers attribute only refer to other cells in the same table, to improve screen reader user experience.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
Screen readers and other assistive technologies have features to make navigating tables easier. Ensure that table headers refer to some set of cells, to improve screen reader user experience.

Internationalization and localization

`<html>` element has a `[lang]` attribute
It is advised to provide a lang attribute so that screen readers and other assistive technologies are guaranteed to announce the page's text correctly. When not provided, the user's default language setting will be used which may cause inaccuracies.
`<html>` element has a valid value for its `[lang]` attribute
Specify a valid BCP 47 language in order to help screen readers and other assistive technologies announce text properly.
`[lang]` attributes have a valid value
Specify a valid BCP 47 language on elements in order to help screen readers and other assistive technologies announce text properly.

Best practices

The document does not use `<meta http-equiv="refresh">`
Pages that refresh automatically cause a poor user experience as focus is directed back to the top of the page unexpectedly.
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
For users with low vision who rely on screen magnification, ensure that zooming is not disabled.

Audio and video

`<video>` elements contain a `<track>` element with `[kind="captions"]`
Sis.gov.uk may provide assistance to deaf or hearing-impaired users with captions on videos.

Manual Checks

The page has a logical tab order
The visual layout should be logical in its tab order and users cannot focus elements that are offscreen.
Interactive controls are keyboard focusable
Ensure that custom interactive controls are keyboard focusable and that a focus indicator is displayed.
Interactive elements indicate their purpose and state
Ensure that interactive elements (such as links and buttons) are distinguishable from non-interactive elements and that they indicate their state.
The user's focus is directed to new content added to the page
When new content (such as a dialogue) is added to the page, the user's focus should be directed to it.
User focus is not accidentally trapped in a region
Avoid focus being accidentally trapped when a user tabs in and out of controls or regions on page.
Custom controls have associated labels
Ensure that custom interactive controls have associated labels, which are provided by aria-label and aria-labelledby attributes.
Custom controls have ARIA roles
Ensure that all custom interactive controls have appropriate ARIA roles.
Visual order on the page follows DOM order
Ensure that the DOM order matches with the page's visual order, in order to improve navigation for screen readers and other assistive technologies.
Offscreen content is hidden from assistive technology
Ensure that offscreen content is hidden through the use of "display:none" styling or the aria-hidden attribute.
HTML5 landmark elements are used to improve navigation
Elements such as <main> and <nav> are recommended as they are used by screen readers and other assistive technologies to improve keyboard navigation.
75

Best Practices

Indicates the recommended, best practices currently in place on the page and highlights the best practices that sis.gov.uk should incorporate. This includes practices such as protecting pages with HTTPS.

Audits

Avoids requesting the geolocation permission on page load
When requesting a user's location, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Avoids requesting the notification permission on page load
When requesting permission to send notifications, provide context or consider tying the request to a user action to avoid confusion and mistrust from users.
Ensure CSP is effective against XSS attacks
Significantly reduce the risk of cross-site scripting attacks (XSS) by ensuring you have a strong Content Security Policy (CSP).
Description Directive Severity
No CSP found in enforcement mode
High

Audits

Allows users to paste into password fields
Ensure that password inputs may be pasted into to aid in the user's ability to use password managers and improve security.
Displays images with correct aspect ratio
Ensure that image display dimensions match their natural aspect ratio.
Fonts with `font-display: optional` are preloaded
It is recommended that optional fonts are preloaded.

Audits

Page has the HTML doctype
Ensure a doctype is specified to prevent the browser from switching to quirks-mode.
Properly defines charset
It is advised to declare a character encoding, optionally via a <meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header.

Audits

Detected JavaScript libraries
Below is a list of all front-end JavaScript libraries that were detected on the page.
Name Version
jQuery
1.11.3
Avoids deprecated APIs
Avoid deprecated APIs which will eventually be removed the browser.
No browser errors logged to the console
Below is a list of all errors logged to the console, which indicate unresolved problems on the site.
No issues in the `Issues` panel in Chrome Devtools
There may be unresolved issues logged to Chrome Devtools.

Audits

Does not use HTTPS — 1 insecure request found
Ensure that all pages are protected with HTTPS (including those that do not handle sensitive data) as HTTPS prevents tampering and passive listening on communications between the app and its users. Additionally, HTTPS is a prerequisite for HTTP/2 and many new web platform APIs.
Insecure URL Request Resolution
http://sis.gov.uk/
Allowed
Includes front-end JavaScript libraries with known security vulnerabilities — 4 vulnerabilities detected
Ensure that the use of third-party scripts is minimal and that only trusted third-party scripts are used as some may contain known security vulnerabilities which may be exploited by attackers.
Library Version Vulnerability Count Highest Severity
SHOW DETAILS
4
Medium

Audits

Serves images with low resolution
For maximum image clarity, ensure images have natural dimensions and are proportional to the display size and pixel ratio.
URL Displayed size Actual size Expected size
https://www.sis.gov.uk/images/logo.png
185 x 50
185 x 50
370 x 100

Audits

Missing source maps for large first-party JavaScript
Consider deploying source maps for added benefits such as the ability to debug while in production.
URL Map URL
https://www.sis.gov.uk/js/video.js
https://www.sis.gov.uk/js/video.js.map
88

SEO

Indicates how well the page is optimized for ranking in search engines and highlights Search Engine Optimization (SEO) opportunities for sis.gov.uk. This includes optimizations such as providing meta data.

Mobile Friendly

Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of sis.gov.uk on mobile screens.
Document uses legible font sizes — 100% legible text
Font sizes of 12px or less are too small to most mobile users without user gestures and further action. Aim for more than 60% of page text to use font sizes greater than 12px.
Source Selector % of Page Text Font Size
SHOW DETAILS
100.00%
≥ 12px

Content Best Practices

Document has a `<title>` element
Search engines, screen reader users and other assistive technology users rely on the title to provide an overview of the page and to help determine if the page is relevant to their search.
Links have descriptive text
Make use of descriptive link text to assist search engines in understanding the content.
Image elements have `[alt]` attributes
Provide short and descriptive alternative text where possible on informative elements.
Document has a valid `hreflang`
Search engines can be instructed to list specific versions of a page for a given language or region through the use of hreflang links.
Document has a valid `rel=canonical`
Search engines can be suggested which URL should be shown in search results through the use of canonical links.
Document avoids plugins
The content of plugins cannot be indexed by search engines and many devices either restrict or do not support them.

Crawling and Indexing

Page has successful HTTP status code
Avoid pages with unsuccessful HTTP status codes as they may not be indexed by search engines.
Links are crawlable
Ensure that the 'href' attribute of anchor elements links to the appropriate destination. This allows for more pages of the site to be discovered by search engines.
Page isn’t blocked from indexing
Pages that cannot be crawled by search engines cannot be indexed or included in their search results. Ensure that search engines have permission to crawl all pages that should be indexed.
robots.txt is valid
Malformed robots.txt files prevent crawlers from understanding how a site wants to be crawled or indexed, which can be devastating to SEO.

Mobile Friendly

Tap targets are not sized appropriately — 63% appropriately sized tap targets
Interactive elements (such as buttons and links) should be appropriately spaced, sized and easy enough to select or tap with regard to their surrounding elements.
Tap Target Size Overlapping Target
Contact us
74x18
Privacy Policy
Privacy Policy
96x18
Terms & Conditions
Terms & Conditions
135x18
Cookie Policy
Cookie Policy
93x18
Accessibility
Accessibility
85x18
Site Map

Content Best Practices

Document does not have a meta description
Meta descriptions may be used by search engines when displaying a link to the page and should concisely summarize the page's content.

Manual Checks

Structured data is valid
Structured data can be validated through the use of the Structured Data Testing Tool and the Structured Data Linter.
30

PWA

Indicates how valid the aspects of a Progressive Web App (PWA) are for the page and highlights opportunities to enable/improve the PWA of sis.gov.uk. This includes details about web app manifests.

PWA Optimized

Content is sized correctly for the viewport
Ensure that the width of the app's content matches the width of the viewport, otherwise the app might not be optimized for mobile screens.
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
It is advised to use a '<meta name="viewport">' tag for the optimization of sis.gov.uk on mobile screens.

Installable

Web app manifest or service worker do not meet the installability requirements — 1 reason
User engagement may be increased by leveraging the browsers ability to proactively prompt users to add the app to their homescreen.
Failure reason
No manifest was fetched

PWA Optimized

Does not register a service worker that controls page and `start_url`
A service worker is used to provide Progressive Web Apps the use of features such as working offline, the ability for the app to be added to the homescreen as well as push notifications.
Is not configured for a custom splash screen
Themed splash screens ensure a high-quality user experience at launch for app users.
View Data
Does not set a theme color for the address bar.
A theme may be applied to the browser address bar, which ideally can be made to match the site.
View Data
Does not provide a valid `apple-touch-icon`
iOS users of Progressive Web Apps will benefit from an apple touch icon, which can be defined with 'apple-touch-icon', which must point to a non-transparent 192px (or 180px) square PNG.
Manifest doesn't have a maskable icon
Maskable icons are great to ensure that images fill the entire shape when installing the app on a device.

Manual Checks

Site works cross-browser
Ensure that the Progressive Web App works correctly across every major browser.
Page transitions don't feel like they block on the network
Users perceive apps with responsive, snappy transitions as higher peforming and ensures a great user experience, even on a slow network.
Each page has a URL
Ensure that all pages are deep linkable via URL. They should also be unique for the purpose of shareability on social media.
Hosting

Server Location

Server IP Address: 104.18.7.144
Continent: North America
Country: United States
United States Flag
Region:
City:
Longitude: -97.822
Latitude: 37.751
Currencies: USD
USN
USS
Languages: English

Web Hosting Provider

Name IP Address
Cloudflare, Inc.
Registration

Domain Registrant

Private Registration: No
Name:
Organization:
Country:
City:
State:
Post Code:
Email:
Phone:
Note: Registration information is derived from various sources and may be inaccurate.

Domain Registrar

Security

Visitor Safety

Mature Content: Not Likely
McAfee WebAdvisor Rating: Safe
WOT Rating:
WOT Trustworthiness: 94/100
WOT Child Safety: 95/100
Note: Safety information is not guaranteed.

SSL/TLS Certificate

Issued To: sni.cloudflaressl.com
Issued By: Cloudflare Inc ECC CA-3
Valid From: 6th July, 2021
Valid To: 5th July, 2022
Subject: CN = sni.cloudflaressl.com
O = Cloudflare, Inc.
L = San Francisco
S = US
Hash: c959965e
Issuer: CN = Cloudflare Inc ECC CA-3
O = Cloudflare, Inc.
S = US
Version: 2
Serial Number: 13251167560394481405197614690959246842
Serial Number (Hex): 09F815009741EA9E224111E5D6DA45FA
Valid From: 6th July, 2024
Valid To: 5th July, 2024
Signature Algorithm (Short Name): ecdsa-with-SHA256
Signature Algorithm (Long Name): ecdsa-with-SHA256
Authority Key Identifier: keyid:A5:CE:37:EA:EB:B0:75:0E:94:67:88:B4:45:FA:D9:24:10:87:96:1F
Extended Key Usage: TLS Web Server Authentication, TLS Web Client Authentication
CRL Distribution Points:
Full Name:
URI:http://crl3.digicert.com/CloudflareIncECCCA-3.crl

Full Name:
URI:http://crl4.digicert.com/CloudflareIncECCCA-3.crl
Certificate Policies: Policy: 2.23.140.1.2.2
CPS: http://www.digicert.com/CPS
Authority Information Access: OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/CloudflareIncECCCA-3.crt
SCT List: Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 46:A5:55:EB:75:FA:91:20:30:B5:A2:89:69:F4:F3:7D:
11:2C:41:74:BE:FD:49:B8:85:AB:F2:FC:70:FE:6D:47
Timestamp : Jul 6 14:57:00.892 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:46:02:21:00:91:5C:41:C0:37:37:66:66:C4:01:54:
FC:E3:36:09:40:AB:25:39:AC:A9:33:A1:02:51:C3:FF:
09:AC:41:6C:2C:02:21:00:C9:4A:27:1F:7C:62:91:32:
C0:B1:B1:A4:0E:A1:66:A1:05:C2:8D:ED:DC:C5:60:15:
04:33:2C:BA:AE:2F:5A:7E
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : 41:C8:CA:B1:DF:22:46:4A:10:C6:A1:3A:09:42:87:5E:
4E:31:8B:1B:03:EB:EB:4B:C7:68:F0:90:62:96:06:F6
Timestamp : Jul 6 14:57:00.914 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:45:02:20:77:05:19:2A:EC:A4:E8:55:62:12:E0:21:
2C:7C:0A:65:83:7A:64:E9:E3:C2:9E:E9:E3:EC:BC:2C:
7D:3A:95:CD:02:21:00:BF:8E:7E:41:D8:86:81:5E:73:
10:7A:41:18:DA:DB:0E:98:EB:86:E0:B1:C6:0C:DA:87:
21:B4:AF:96:64:37:5F
Signed Certificate Timestamp:
Version : v1 (0x0)
Log ID : DF:A5:5E:AB:68:82:4F:1F:6C:AD:EE:B8:5F:4E:3E:5A:
EA:CD:A2:12:A4:6A:5E:8E:3B:12:C0:20:44:5C:2A:73
Timestamp : Jul 6 14:57:00.925 2021 GMT
Extensions: none
Signature : ecdsa-with-SHA256
30:44:02:20:6B:F2:80:7D:DA:0F:10:4E:F9:43:7A:05:
79:CC:EA:5A:39:5D:BF:37:17:FB:42:AA:43:D8:8A:1A:
69:CA:32:52:02:20:35:1B:1B:2E:AC:DB:9C:AD:EA:25:
01:0C:56:18:28:7D:66:39:45:E1:3A:BE:AD:21:6C:29:
FC:6F:CD:4B:58:55
Key Usage: Digital Signature
Basic Constraints: CA:FALSE
Subject Alternative Name: DNS:*.sis.gov.uk
DNS:sni.cloudflaressl.com
DNS:sis.gov.uk
Technical

DNS Lookup

HTTP Response Headers

HTTP-Code: HTTP/1.1 200 OK
Date: 18th March, 2022
Content-Type: text/html; charset=utf-8
Expires: 18th March, 2022
Cache-Control: public, max-age=14400
Server: cloudflare
Connection: keep-alive
Strict-Transport-Security: max-age=6000;
X-Content-Type-Options: nosniff
X-Xss-Protection: 1; mode=block
Last-Modified: 9th March, 2022
ETag: W/"5e012e-3b99-5d9c7576307f6"
Vary: Accept-Encoding
X-FRAME-OPTIONS: SAMEORIGIN
CF-Cache-Status: HIT
Age: 1468
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Set-Cookie: *
CF-RAY: 6edfa10bea701912-EWR
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

Whois Lookup

Created: 31st July, 1996
Changed:
Expires:
Registrar: No registrar listed. This domain is directly registered with Nominet.
Status:
Nameservers: auth00.ns.de.uu.net
auth50.ns.de.uu.net
ns0.ja.net
ns1.surfnet.nl
ns2.ja.net
ns3.ja.net
ns4.ja.net
Owner Organization: UK Cabinet Office
Full Whois: Domain name:
gov.uk

Registrant:
UK Cabinet Office

Registrant type:
UK Government Body

Registrant's address:
Government Digital Service
The White Chapel Building 7th Floor
10 Whitechapel High Street
London
E1 8QS
GB

Registrar:
No registrar listed. This domain is directly registered with Nominet.

Relevant dates:
Registered on: before Aug-1996
Registration status:
No registration status listed.

Name servers:
ns0.ja.net.
ns2.ja.net.
ns3.ja.net.
ns4.ja.net.
auth50.ns.de.uu.net.
auth00.ns.de.uu.net.
ns1.surfnet.nl.


WHOIS lookup made at 17:18:45 18-Mar-2022

--
This WHOIS information is provided for free by Nominet UK the central registry
for .uk domain names. This information and the .uk WHOIS are:

Copyright Nominet UK 1996 - 2022.

You may not access the .uk WHOIS or use any data from it except as permitted
by the terms of use available in full at https://www.nominet.uk/whoisterms,
which includes restrictions on: (A) use of the data for advertising, or its
repackaging, recompilation, redistribution or reuse (B) obscuring, removing
or hiding any or all of this notice and (C) exceeding query rate or volume
limits. The data is provided on an 'as-is' basis and may lag behind the
register. Access may be withdrawn or restricted at any time.
View Raw Whois

Nameservers

Name IP Address
auth00.ns.de.uu.net 192.76.144.14
auth50.ns.de.uu.net 194.128.171.99
ns0.ja.net 193.63.94.20
ns1.surfnet.nl 192.87.106.101
ns2.ja.net 193.63.105.17
ns3.ja.net 193.63.106.103
ns4.ja.net 193.62.157.66
Related

Subdomains

Similar Sites

Domain Valuation Snoop Score
creativetheorem.com
0/5
eyespymag.com
$528 USD
fas.org
$78,546 USD 2/5
gchq.gov.uk
$3,501 USD 2/5
google.com
$4,794,933,151 USD 5/5
All sites similar to sis.gov.uk

Organic Search (US) Competitors

Backlink Competitors

Sites with the same domain name

Domain Valuation Snoop Score
sis.ca
0/5
sis.com
$959 USD 1/5
sis.de
0/5
sis.net
0/5
sis.nl
0/5

Sites hosted on the same IP address

Love W3 Snoop?
Update Now

sis.gov.uk Infographic

sis.gov.uk by the numbers infographic

Recently Updated

youtube.com
wildcardparking.com
freevpn.tv
safehaus.org
cxfakes.com
anime4fun.com
vidnoz.com
kooralive.pp.ua
amazon.com
gojekapi.com

Recently Viewed

susanhoakart.com
svlw.ch
floridabarexam.org
gommepoint.com
westmannreviews.com
svdpseattle.org
fisioterapiarubiera.com
travelophile.com
operanewsapp.com
xyztour.com