gov.uk - Certified Web 1.0

Tracked site: https://www.gov.uk/. Checked against the Web 1.0 Specification (2026 Edition), front page only, roughly every two weeks.

Fails by a single major fault. Latest check: 2026-09-28. 1 major, 5 minor; 748 KB first-party transfer, 43 requests.

Rule by rule

Rule	Fault	Result
JS-01	JavaScript	MAJOR <script src="/assets/frontend/govuk_publishing_components/vendor/lux/lux-measurer-d66192b1b665d415e1874e49a48138b7ae339548aa6cdb8687c7f9933e72b969.js"> <script src="/assets/frontend/govuk_publishing_components/rum-custom-data-b9e1806d1da2fa8ef1855d01aa71ba5eb0afc010dd2c4de3672cc7c7a39b0c8c.js"> <script src="/assets/frontend/govuk_publishing_components/rum-loader-a65b10e18ceeba3bd8a2eac507c7f2c513cdc82f35097df903fdea87f1dc2e33.js"> <script src="/assets/frontend/govuk_publishing_components/load-analytics-ad855bc6d5d323fbe2be3d683cb5dd15cf884cbe864bfb965bce0d9ec4847a36.js"> inline <script> and 2 more
TP-01	Third-party requests	pass
CK-01	Cookies	pass
WT-01	Excessive transfer	1 minor total first-party transfer 748 KB (over 512 KB)
AV-01	Autoplaying media	pass
HY-01	Missing doctype	pass
HY-02	Missing title	pass
HY-03	Missing language	pass
HY-04	Missing charset	pass
HY-05	Missing alt text	pass
FT-01	Web fonts	3 minor @font-face in https://www.gov.uk/assets/frontend/application-93db540bb07168899a0447daba141f908add6c10a0c6c7092753d70856bd4a0a.css @font-face in https://www.gov.uk/assets/frontend/application-93db540bb07168899a0447daba141f908add6c10a0c6c7092753d70856bd4a0a.css @font-face in https://www.gov.uk/assets/frontend/views/_homepage-753ff6891a62f39f078bc48673656253ab667f6e539a27242a2650574bb2adec.css @font-face in https://www.gov.uk/assets/frontend/views/_homepage-753ff6891a62f39f078bc48673656253ab667f6e539a27242a2650574bb2adec.css
RQ-01	Excessive requests	1 minor 43 resource requests
FR-01	First-party frame	pass

History

Date	Grade	Majors	Minors	Weight	Requests
2026-09-28	D	1	5	748 KB	43
2026-09-14	D	1	5	752 KB	43
2026-08-31	D	1	5	747 KB	43
2026-08-17	D	1	5	746 KB	43