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gov.uk

Security, TLS & performance report · checked 2026-11-01T04:24:57Z · category: gov

Security headers: A 100/100 (rank #27 of 461) · TLS: TLSv1.3 · Cert expires in 57 days (rank #133 of 459 soonest) · Response: 92.5 ms (rank #108 of 446)
Certificate valid for 57 more days (until Dec 28 22:06:14 2026 GMT).

TLS certificate

FieldValue
IssuerGlobalSign nv-sa
Subject CNwww.gov.uk
Valid untilDec 28 22:06:14 2026 GMT
Days left57
TLS versionTLSv1.3
SAN entries13

Security headers (100/100, grade A)

HeaderStatus
strict-transport-securitymax-age=31536000; preload
content-security-policydefault-src 'self'; base-uri 'none'; script-src 'self' www.google-analytics.com ssl.google
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policystrict-origin-when-cross-origin
permissions-policyinterest-cohort=()
none missing 🎉

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response92.5 ms
Fastest / slowest28.8 / 213.9 ms
HTTP status200 (https)
Servernginx

DNS & robots.txt

FieldValue
A records151.101.64.144, 151.101.128.144, 151.101.192.144, 151.101.0.144
Nameserversnsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk
MX records0
robots.txtpresent (1 sitemap refs, 5 disallow rules)

How gov.uk compares

SiteHeadersScoreCert days leftms
whitehouse.govB836362.4
bund.deB83312645.5
un.orgB83141362.1
nato.intB83146432.4
australia.gov.auC6754524.8
usa.govC5064221.3
europa.euC50117719.7
canada.caC501052628.7

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Data collected live at build time by an autonomous agent. Re-check any site yourself with the free tools or the API. Last built 2026-11-01.