UK Central Government Sites

Search every site in this cohort

uk-central-government

The websites UK central government departments, agencies and public bodies run on hosts of their own, ranked by Tranco.

Index 12.1 · scanned 2026-11-02 · up to 32 URLs per site · 476 organizations · 412 scanned (86.6% coverage) · scored as government

Median score 58 across 412 sites
Middle half 33–70 spread around the median
Full range 28–79 lowest to highest
Gated 212 of 412 block AI crawlers outright

Middle of 31 cohorts. All cohorts 54 · best cohort 63.

Where this list came from

The source, and how we filtered it

Source GOV.UK Organisations API, with the .gov.uk domain register and the Tranco list, Government Digital Service (GOV.UK); Central Digital and Data Office (.gov.uk register); Tranco (Le Pochat et al.) (2026-11-02)
LicenseGOV.UK content and the .gov.uk domain list are Crown copyright published under the Open Government Licence v3.0, which permits copying, publishing and adapting the information, including commercially, with attribution. Tranco list 8PXYV is published by its research authors for free use with a requested citation.
Cite asContains public sector information licensed under the Open Government Licence v3.0. Tranco list 8PXYV: Le Pochat et al., "Tranco: A Research-Oriented Top Sites Ranking Hardened Against Manipulation", NDSS 2019.
How we filtered itTook every organization in the GOV.UK Organisations API (1,271, all pages, retrieved 2026-11-02). Kept those not closed, not devolved and not NHS. Devolved means the three devolved governments, every body whose GOV.UK parent links all lead to them, and six parentless Welsh bodies named in the script; jointly sponsored bodies such as APHA stay. NHS means 'NHS' in the name or a special health authority. Read each kept organization's GOV.UK Content API item for organisation_govuk_status.url and took it as the body's own site; an address that is a page on another body's host (21, e.g. bbc.co.uk/worldservice, parliament.uk/...) was not taken. Added .gov.uk domains still in the 31 March 2026 register when the 30 March 2023 or 28 October 2019 edition names exactly a population organization or its abbreviation as the registrant. A domain the organization only owns (registered for something else) was taken only if Tranco ranks it, which dropped 77. One row per host; other organizations on that host are listed under also_runs. Ranked by Tranco 8PXYV (30 days to 2026-10-10) on the host or the host without www, never a parent domain's rank. Then the unranked: GOV.UK addresses first, then register domains, one department at a time. At most 50 rows (10%) per department, capped at 500. www.gov.uk is one row, 'GOV.UK'.
Instead ofThe 2026 .gov.uk register alone (domain names only, no owner, so central and local cannot be told apart); data.gov.uk's CKAN API (returned an error page); resolving redirects as the US federal cohort did (not allowed here: no site is loaded).
Built2026-11-02

The filtering is ours and is disclosed as ours. The source published a list; the decision about which rows of it belong in a cohort was a judgment call, and it is written down so somebody can disagree with it.

Distribution

Where the 412 sites land

GradeShare of the cohort SitesShare
Weak
77 18.7%
Strong
37 9.0%
Adequate
153 37.1%
Not ready
145 35.2%
By dimension

What the cohort earns, dimension by dimension

The mean share of each dimension’s available points that this cohort earned. Low here means the whole sector is weak on it, not that one site dragged an average down. The per-site spread is in the dataset.

DimensionMean share earned Mean
#1 · Reach
These parameters determine the fundamental ease of access that AI has to your site information.
69%
#2 · Read
AI generally turns off JavaScript. Does your site information survive without it?
52%
#3 · Understand
Does a machine know who and what you are?
27%
#4 · Act
Sitemaps, redirects, 404s, licensing terms, and not wasting the crawl budget.
91%
How much of each site we read

The cap is 32 URLs and it is a ceiling, not a promise. A portal whose every link points at a different host yields one page; a university yields the full sample. The median here is 1, the range 1–32, published so that "we sampled 32 URLs per site" cannot become a claim the data does not support.

37 sites in this cohort served a certificate we could not verify. They were read anyway and scored normally, because reporting no response for a site every browser loads would describe our TLS stack rather than the site, and each one carries the finding in its row.

Where this cohort fails

10 tests almost nobody in this cohort passes

Universal — nobody passes these 10 checks · 2 of them worth 2 points or more
TestWhat it asks FailingOf Points
ACT-3 If you have a public API, is it described in a standard file?
100.0%
5 2
EXT-11 Have you marked the part of a page that answers a spoken question?
100.0%
412 0
EXT-12 Do you tell search engines the moment a page changes?
100.0%
412 0
EXT-15 Can an AI agent find out how to sign in to your site?
100.0%
5 0
EXT-16 Do you publish a card or a skills list for the agents you run?
100.0%
412 0
EXT-17 Do you list your agents in your domain's DNS records?
100.0%
411 0
EXT-18 Do you tell AI shoppers how they can pay?
100.0%
2 0
EXT-7 If you run real question-and-answer pages, are they marked as such?
100.0%
2 0
RED-11 Does each page tell machines where its Markdown copy is?
100.0%
1 1
UND-9 If a page is behind a paywall, does it say so?
100.0%
1 2
Near-universal — 95% and above 9 checks · 4 of them worth 2 points or more
TestWhat it asks FailingOf Points
RED-10 Do you offer a plain-text (Markdown) copy of your pages?
99.5%
193 2
RED-12 If a machine asks for Markdown, does your site give it?
99.3%
412 2
EXT-1 Do you publish an llms.txt file for coding assistants?
98.8%
412 0
EXT-14 Does your site offer its actions to AI browsers as tools?
98.5%
271 0
UND-2 Does your site use the page labels that search engines still read for what you publish?
98.5%
412 3
PST-2 Have you posted a Content Signals statement about what AI may do with your content?
97.6%
412 0
UND-1 Does your site say clearly who you are?
97.3%
412 2
EXT-2 Do you list your APIs and agent tools where agents look for them?
96.4%
55 0
UND-5 Does the author label in your page code point to that person?
95.5%
243 1
Common — 90 to 95% 2 checks · 1 of them worth 2 points or more
TestWhat it asks FailingOf Points
UND-10 Does your page code link to your official profiles elsewhere?
94.9%
412 2
MSR-7 Are you set up in Google Search Console and Bing Webmaster Tools, and do you read their AI reports?
90.0%
412 0

Coral bars mark tests worth 2 points or more, the failures that actually move a score.

Every site

Every 476, named, with a report for each

Whether or not it has been scanned. Rows with no website on record, sites that were unreachable and sites that turned us away stay in the table with the reason on them, and none of them enters an average: dropping them would shrink the population to the part that was easy to measure. A few points between two neighbors is noise. The box filters every row in the cohort, not only the page you are on; click a header to sort the rows on this page by name or by score.

Showing 101–200 of 476 · page 2 of 5

SiteScore GatedPages read Report
Office of the Children's Commissioner childrenscommissioner.gov.ukregister id govuk:office-of-the-children-s-commissioner; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 124,150 by Tranco 8PXYV 73 No 32
Prime Minister's Office, 10 Downing Street number10.gov.ukregister id govuk:prime-ministers-office-10-downing-street; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists number10.gov.uk as registered for Prime Minister's Office, 10 Downing Street; the address is the registered name, not a published link; ranked 128,589 by Tranco 8PXYV 67 No 31
Construction Industry Training Board citb.co.ukregister id govuk:construction-industry-training-board; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 129,247 by Tranco 8PXYV 66 No 32
HM Treasury (hm-treasury.gov.uk) hm-treasury.gov.ukregister id govuk:hm-treasury; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists hm-treasury.gov.uk as registered for HM Treasury; the address is the registered name, not a published link; ranked 130,292 by Tranco 8PXYV 33 Gated 1
Peak District National Park Authority peakdistrict.gov.ukblockedregister id govuk:peak-district-national-park; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 141,139 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
Government Communications Headquarters (www.gchq.gov.uk) gchq.gov.ukregister id govuk:government-communications-headquarters; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 143,080 by Tranco 8PXYV 44 Gated 32
Higher Education Statistics Agency hesa.ac.ukblockedregister id govuk:higher-education-statistical-agency; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 145,157 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
Lake District National Park Authority lakedistrict.gov.ukregister id govuk:lake-district-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 146,327 by Tranco 8PXYV 71 No 32
Human Fertilisation and Embryology Authority hfea.gov.ukregister id govuk:human-fertilisation-and-embryology-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 149,212 by Tranco 8PXYV 73 No 32
College of Policing college.police.ukblockedregister id govuk:college-of-policing; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 149,986 by Tranco 8PXYV; not measured: HTTP 403 — No —
Horniman Public Museum and Public Park Trust horniman.ac.ukregister id govuk:horniman-museum; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 150,515 by Tranco 8PXYV 59 Gated 32
Wallace Collection wallacecollection.orgunreachableregister id govuk:wallace-collection; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 151,230 by Tranco 8PXYV — No —
HM Crown Prosecution Service Inspectorate (justiceinspectorates.gov.uk) justiceinspectorates.gov.ukregister id govuk:hm-crown-prosecution-service-inspectorate; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists justiceinspectorates.gov.uk as registered for The criminal justice inspectorates; the address is the registered name, not a published link; ranked 151,520 by Tranco 8PXYV 71 No 2
Office for Students officeforstudents.org.ukregister id govuk:office-for-students; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 152,060 by Tranco 8PXYV 55 Gated 25
The Pensions Regulator (www.thepensionsregulator.gov.uk) thepensionsregulator.gov.ukregister id govuk:the-pensions-regulator; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 155,953 by Tranco 8PXYV 69 No 32
Cabinet Office (business.gov.uk) business.gov.ukregister id govuk:cabinet-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists business.gov.uk as registered for DTI Small Business Service; the address is the registered name, not a published link; ranked 157,099 by Tranco 8PXYV 67 No 32
Royal Armouries Museum royalarmouries.orgregister id govuk:royal-armouries-museum; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 161,122 by Tranco 8PXYV 49 Gated 32
Treasure Valuation Committee finds.org.ukblockedregister id govuk:treasure-valuation-committee; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 161,204 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
National Counter Terrorism Security Office (www.protectuk.police.uk) protectuk.police.ukregister id govuk:national-counter-terrorism-security-office; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 161,804 by Tranco 8PXYV 51 Gated 32
The Legal Ombudsman legalombudsman.org.ukregister id govuk:the-legal-ombudsman; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 163,834 by Tranco 8PXYV 59 No 32
National Protective Security Authority npsa.gov.ukblockedregister id govuk:national-protective-security-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 168,812 by Tranco 8PXYV; the same host is given for 1 other organisation(s); not measured: HTTP 403 — No —
Local Government and Social Care Ombudsman lgo.org.ukregister id govuk:local-government-ombudsman; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 169,958 by Tranco 8PXYV 33 Gated 1
Law Commission lawcom.gov.ukregister id govuk:law-commission; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 170,448 by Tranco 8PXYV; the same host is given for 1 other organisation(s) 71 No 32
Department for Digital, Culture, Media and Sport (culture.gov.uk) culture.gov.ukregister id govuk:department-for-digital-culture-media-and-sport; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists culture.gov.uk as registered for Department; the address is the registered name, not a published link; ranked 171,457 by Tranco 8PXYV 75 No 32
Health Research Authority hra.nhs.ukregister id govuk:health-research-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 173,249 by Tranco 8PXYV 62 No 32
Engineering and Physical Sciences Research Council epsrc.ac.ukregister id govuk:engineering-and-physical-sciences-research-council; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 174,707 by Tranco 8PXYV 70 No 1
Ministry of Justice (judiciary.gov.uk) judiciary.gov.ukregister id govuk:ministry-of-justice; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists judiciary.gov.uk as registered for Office of the Lord Chief Justice; the address is the registered name, not a published link; ranked 176,243 by Tranco 8PXYV 66 Gated 1
Department for Transport (dvsa.gov.uk) dvsa.gov.ukregister id govuk:department-for-transport; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists dvsa.gov.uk as registered for Department for Transport; the address is the registered name, not a published link; ranked 179,203 by Tranco 8PXYV 74 No 1
Rail Safety and Standards Board rssb.co.ukregister id govuk:rail-safety-and-standards-board; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 182,735 by Tranco 8PXYV 51 Gated 32
Biotechnology and Biological Sciences Research Council bbsrc.ac.ukregister id govuk:biotechnology-biological-sciences-research-council; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 182,902 by Tranco 8PXYV 70 No 1
Yorkshire Dales National Park Authority yorkshiredales.org.ukregister id govuk:yorkshire-dales-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 190,051 by Tranco 8PXYV 66 No 32
Sir John Soane's Museum soane.orgregister id govuk:sir-john-soane-s-museum; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 190,502 by Tranco 8PXYV 52 No 32
Sentencing Council for England and Wales sentencingcouncil.org.ukregister id govuk:the-sentencing-council-for-england-and-wales; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 191,063 by Tranco 8PXYV 70 No 32
Government Commercial Agency gca.gov.ukregister id govuk:government-commercial-agency; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 191,901 by Tranco 8PXYV 52 Gated 32
Cabinet Office (civilservice.gov.uk) civilservice.gov.ukregister id govuk:cabinet-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists civilservice.gov.uk as registered for Cabinet Office; the address is the registered name, not a published link; ranked 193,910 by Tranco 8PXYV 72 No 32
Forest Research forestresearch.gov.ukunreachableregister id govuk:forest-research; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 195,704 by Tranco 8PXYV — No —
Ofwat ofwat.gov.ukblockedregister id govuk:the-water-services-regulation-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 195,796 by Tranco 8PXYV; not measured: HTTP 403 — No —
The Crown Estate thecrownestate.co.ukregister id govuk:the-crown-estate; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 226,997 by Tranco 8PXYV 77 No 32
Public Service Ombudsman ombudsman.org.ukregister id govuk:public-service-ombudsman; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 232,718 by Tranco 8PXYV 59 No 32
Planning Inspectorate (planninginspectorate.gov.uk) planninginspectorate.gov.ukregister id govuk:planning-inspectorate; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists planninginspectorate.gov.uk as registered for The Planning Inspectorate; the address is the registered name, not a published link; ranked 244,554 by Tranco 8PXYV 67 No 1
Office of Rail and Road orr.gov.ukregister id govuk:office-of-rail-and-road; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 245,117 by Tranco 8PXYV 72 No 32
Joint Nature Conservation Committee (jncc.gov.uk) jncc.gov.ukregister id govuk:joint-nature-conservation-committee; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists jncc.gov.uk as registered for Joint Nature Conservation Committee; the address is the registered name, not a published link; ranked 245,473 by Tranco 8PXYV 65 No 32
National Energy System Operator neso.energyregister id govuk:national-energy-system-operator; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 249,700 by Tranco 8PXYV 67 No 32
UK Sport uksport.gov.ukregister id govuk:uk-sport; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 254,859 by Tranco 8PXYV 43 Gated 32
The National Archives (hmso.gov.uk) hmso.gov.ukregister id govuk:the-national-archives; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists hmso.gov.uk as registered for The National Archives; the address is the registered name, not a published link; ranked 255,630 by Tranco 8PXYV 70 No 1
Cabinet Office (businesslink.gov.uk) businesslink.gov.ukregister id govuk:cabinet-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists businesslink.gov.uk as registered for Cabinet Office; the address is the registered name, not a published link; ranked 256,140 by Tranco 8PXYV 72 No 32
Planning Inspectorate (planningportal.gov.uk) planningportal.gov.ukregister id govuk:planning-inspectorate; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists planningportal.gov.uk as registered for The Planning Inspectorate; the address is the registered name, not a published link; ranked 257,113 by Tranco 8PXYV 62 Gated 32
HM Revenue & Customs (childcarechoices.gov.uk) childcarechoices.gov.ukregister id govuk:hm-revenue-customs; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists childcarechoices.gov.uk as registered for HM Revenue & Customs; the address is the registered name, not a published link; ranked 259,413 by Tranco 8PXYV 59 Gated 1
Economic and Social Research Council esrc.ac.ukregister id govuk:economic-and-social-research-council; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 259,712 by Tranco 8PXYV 70 No 1
Leasehold Advisory Service lease-advice.orgblockedregister id govuk:leasehold-advisory-service; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 272,880 by Tranco 8PXYV; not measured: HTTP 403 — No —
North York Moors National Park Authority northyorkmoors.org.ukblockedregister id govuk:north-york-moors-national-park; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 282,590 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
Independent Office for Police Conduct policeconduct.gov.ukregister id govuk:independent-office-for-police-conduct; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 283,132 by Tranco 8PXYV 58 Gated 32
South Downs National Park Authority southdowns.gov.ukregister id govuk:south-downs-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 283,255 by Tranco 8PXYV 62 Gated 32
Competition and Markets Authority (oft.gov.uk) oft.gov.ukregister id govuk:competition-and-markets-authority; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists oft.gov.uk as registered for Competition and Markets Authority; the address is the registered name, not a published link; ranked 285,662 by Tranco 8PXYV 60 No 32
Ministry of Defence (armedforcescovenant.gov.uk) armedforcescovenant.gov.ukregister id govuk:ministry-of-defence; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists armedforcescovenant.gov.uk as registered for Armed Forces Covenant; the address is the registered name, not a published link; ranked 291,494 by Tranco 8PXYV 68 No 32
Housing Ombudsman housing-ombudsman.org.ukregister id govuk:housing-ombudsman; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 292,467 by Tranco 8PXYV 61 Gated 32
Department for Education (dfes.gov.uk) dfes.gov.ukregister id govuk:department-for-education; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists dfes.gov.uk as registered for Department for Education; the address is the registered name, not a published link; ranked 305,385 by Tranco 8PXYV 72 No 1
Social Work England socialworkengland.org.ukregister id govuk:social-work-england; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 313,460 by Tranco 8PXYV 71 No 32
Cabinet Office (civil-service-careers.gov.uk) civil-service-careers.gov.ukblockedregister id govuk:cabinet-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists civil-service-careers.gov.uk as registered for The Civil Service Careers website; the address is the registered name, not a published link; ranked 320,294 by Tranco 8PXYV; not measured: HTTP 403 — No —
Payment Systems Regulator psr.org.ukregister id govuk:payment-systems-regulator; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 320,705 by Tranco 8PXYV 53 Gated 32
Dartmoor National Park Authority dartmoor.gov.ukblockedregister id govuk:dartmoor-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 320,897 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
HM Revenue & Customs (voa.gov.uk) voa.gov.ukregister id govuk:hm-revenue-customs; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists voa.gov.uk as registered for HM Revenue & Customs; the address is the registered name, not a published link; ranked 337,838 by Tranco 8PXYV 64 Gated 32
Marshall Aid Commemoration Commission marshallscholarship.orgblockedregister id govuk:marshall-aid-commemoration-commission; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 338,679 by Tranco 8PXYV; not measured: HTTP 403 — No —
Secret Intelligence Service (www.sis.gov.uk) sis.gov.ukblockedregister id govuk:secret-intelligence-service; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 350,265 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
UK Statistics Authority statisticsauthority.gov.ukregister id govuk:uk-statistics-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 351,696 by Tranco 8PXYV 73 No 21
Department for Transport (think.gov.uk) think.gov.ukregister id govuk:department-for-transport; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists think.gov.uk as registered for THINK! Road Safety campaign; the address is the registered name, not a published link; ranked 363,276 by Tranco 8PXYV 74 No 32
New Forest National Park Authority newforestnpa.gov.ukregister id govuk:new-forest-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 366,172 by Tranco 8PXYV 64 No 32
Defence Science and Technology Laboratory dstl.gov.ukregister id govuk:defence-science-and-technology-laboratory; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists dstl.gov.uk as registered for Defence Science & Technology Laboratory; the address is the registered name, not a published link; ranked 367,859 by Tranco 8PXYV 76 No 32
Arts and Humanities Research Council ahrc.ac.ukregister id govuk:arts-and-humanities-research-council; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 378,563 by Tranco 8PXYV 70 No 1
Serious Fraud Office sfo.gov.ukregister id govuk:serious-fraud-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists sfo.gov.uk as registered for Serious Fraud Office; the address is the registered name, not a published link; ranked 381,431 by Tranco 8PXYV 33 Gated 1
Cafcass cafcass.gov.ukregister id govuk:children-and-family-court-advisory-and-support-service; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 389,524 by Tranco 8PXYV 73 No 32
Exmoor National Park Authority (www.exmoor-nationalpark.gov.uk) exmoor-nationalpark.gov.ukblockedregister id govuk:exmoor-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 395,586 by Tranco 8PXYV; not measured: HTTP 403 (Cloudflare) — No —
Electricity Settlements Company lowcarboncontracts.ukblockedregister id govuk:electricity-settlements-company; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 397,654 by Tranco 8PXYV; the same host is given for 1 other organisation(s); not measured: HTTP 403 — No —
Museum of the Home museumofthehome.org.ukregister id govuk:geffrye-museum; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 398,138 by Tranco 8PXYV 58 Gated 32
UK Anti-Doping ukad.org.ukregister id govuk:uk-anti-doping; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 404,423 by Tranco 8PXYV 74 No 32
Department of Health and Social Care (dhsc.gov.uk) dhsc.gov.ukregister id govuk:department-of-health-and-social-care; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists dhsc.gov.uk as registered for Department of Health & Social Care; the address is the registered name, not a published link; ranked 411,228 by Tranco 8PXYV 33 Gated 1
Ofqual ofqual.gov.ukregister id govuk:ofqual; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists ofqual.gov.uk as registered for Ofqual; the address is the registered name, not a published link; ranked 440,680 by Tranco 8PXYV 76 No 32
Cabinet Office (api.gov.uk) api.gov.ukregister id govuk:cabinet-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists api.gov.uk as registered for API; the address is the registered name, not a published link; ranked 447,218 by Tranco 8PXYV 67 No 32
UK Health Security Agency (ukhsa.gov.uk) ukhsa.gov.ukregister id govuk:uk-health-security-agency; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists ukhsa.gov.uk as registered for UK Health Security Agency; the address is the registered name, not a published link; ranked 457,580 by Tranco 8PXYV 63 No 1
Advanced Research and Invention Agency aria.org.ukregister id govuk:advanced-research-and-invention-agency; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 461,634 by Tranco 8PXYV 65 No 32
Ministry of Justice (moneyclaim.gov.uk) moneyclaim.gov.ukregister id govuk:ministry-of-justice; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists moneyclaim.gov.uk as registered for The Court Service; the address is the registered name, not a published link; ranked 471,349 by Tranco 8PXYV 33 Gated 1
Government Statistical Service (gss.gov.uk) gss.gov.ukregister id govuk:civil-service-government-statistical-service; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists gss.gov.uk as registered for Government Statistical Service; the address is the registered name, not a published link; ranked 474,437 by Tranco 8PXYV 33 Gated 1
Architects Registration Board arb.org.ukunreachableregister id govuk:architects-registration-board; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 489,055 by Tranco 8PXYV — No —
Department for Digital, Culture, Media and Sport (dcms.gov.uk) dcms.gov.ukregister id govuk:department-for-digital-culture-media-and-sport; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists dcms.gov.uk as registered for Department for Digital Culture Media and Sport; the address is the registered name, not a published link; ranked 490,740 by Tranco 8PXYV 75 No 32
UK Health Security Agency (phe.gov.uk) phe.gov.ukregister id govuk:uk-health-security-agency; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists phe.gov.uk as registered for UK Health Security Agency; the address is the registered name, not a published link; ranked 493,888 by Tranco 8PXYV 33 Gated 1
Drinking Water Inspectorate dwi.gov.ukregister id govuk:the-drinking-water-inspectorate; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 498,362 by Tranco 8PXYV 77 No 32
Westminster Foundation for Democracy wfd.orgblockedregister id govuk:westminster-foundation-for-democracy; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 498,539 by Tranco 8PXYV; not measured: HTTP 403 (CloudFront) — No —
Professional Standards Authority for Health and Social Care professionalstandards.org.ukregister id govuk:professional-standards-authority-for-health-and-social-care; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 500,882 by Tranco 8PXYV 60 No 32
Royal Marines Museum nmrn.org.ukregister id govuk:royal-marines-museum; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 508,993 by Tranco 8PXYV; the same host is given for 1 other organisation(s) 60 No 2
Government Digital Service (publicsectordns.gov.uk) publicsectordns.gov.ukregister id govuk:government-digital-service; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists publicsectordns.gov.uk as registered for PSN DNS GDS; the address is the registered name, not a published link; ranked 515,855 by Tranco 8PXYV 33 Gated 1
Competition Appeal Tribunal catribunal.org.ukregister id govuk:competition-appeal-tribunal; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 515,975 by Tranco 8PXYV 49 No 32
British Pharmacopoeia Commission pharmacopoeia.comregister id govuk:british-pharmacopoeia; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 517,591 by Tranco 8PXYV 33 Gated 1
Intellectual Property Office (patent.gov.uk) patent.gov.ukregister id govuk:intellectual-property-office; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists patent.gov.uk as registered for Intellectual Property Office; the address is the registered name, not a published link; ranked 522,703 by Tranco 8PXYV 33 Gated 1
Seafish seafish.orgregister id govuk:seafish; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 529,118 by Tranco 8PXYV 54 Gated 16
Human Tissue Authority hta.gov.ukregister id govuk:human-tissue-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 584,243 by Tranco 8PXYV 62 No 32
Small Business Commissioner smallbusinesscommissioner.gov.ukregister id govuk:small-business-commissioner; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists smallbusinesscommissioner.gov.uk as registered for The Small Business Commissioner; the address is the registered name, not a published link; ranked 584,892 by Tranco 8PXYV 69 No 32
Ministry of Justice (prisonandprobationjobs.gov.uk) prisonandprobationjobs.gov.ukregister id govuk:ministry-of-justice; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists prisonandprobationjobs.gov.uk as registered for Ministry of Justice; the address is the registered name, not a published link; ranked 585,366 by Tranco 8PXYV 64 No 32
Ministry of Justice (statutelaw.gov.uk) statutelaw.gov.ukregister id govuk:ministry-of-justice; address from .gov.uk domain register (CDDO), 31 March 2026 (medium confidence), not checked by loading it; the register lists statutelaw.gov.uk as registered for Statute Law Database; the address is the registered name, not a published link; ranked 589,421 by Tranco 8PXYV 70 No 1
Northumberland National Park Authority northumberlandnationalpark.org.ukregister id govuk:northumberland-national-park-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 596,522 by Tranco 8PXYV 66 No 32
North Sea Transition Authority nstauthority.co.ukregister id govuk:north-sea-transition-authority; address from GOV.UK Organisations (organisation_govuk_status) (high confidence), not checked by loading it; ranked 601,063 by Tranco 8PXYV 56 Gated 32

Scores are for the population, not for ranking two named sites against each other. A few points between neighbors is noise. See what these numbers can and cannot support. Headline figures: summary.json (CC BY 4.0). The site-by-site data on this page is licensed; a bulk copy is from TEN7 for a fee.