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theguardian.com

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

Security headers: A 100/100 (rank #15 of 461) · TLS: TLSv1.3 · Cert expires in 124 days (rank #353 of 459 soonest) · Response: 501.1 ms (rank #345 of 446)
Certificate valid for 124 more days (until Mar 5 10:24:58 2027 GMT).

TLS certificate

FieldValue
IssuerGlobalSign nv-sa
Subject CNtheguardian.com
Valid untilMar 5 10:24:58 2027 GMT
Days left124
TLS versionTLSv1.3
SAN entries30

Security headers (100/100, grade A)

HeaderStatus
strict-transport-securitymax-age=63072000; includeSubDomains; preload
content-security-policyupgrade-insecure-requests; default-src https:; script-src https: 'unsafe-inline' 'unsafe-e
x-frame-optionsSAMEORIGIN
x-content-type-optionsnosniff
referrer-policyno-referrer-when-downgrade
permissions-policycamera=(), microphone=(), midi=(), geolocation=(), interest-cohort=(), clipboard-read=(),
none missing 🎉

Availability & performance

FieldValue
Availability100% (3/3 probes)
Avg response501.1 ms
Fastest / slowest211.0 / 742.4 ms
HTTP status200 (https)
Servern/a

DNS & robots.txt

FieldValue
A records151.101.65.111, 151.101.1.111, 151.101.129.111, 151.101.193.111
Nameserversdns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net
MX records5
robots.txtpresent (2 sitemap refs, 50 disallow rules)

How theguardian.com compares

SiteHeadersScoreCert days leftms
techcrunch.comA1004082.5
politico.comA100124300.6
gizmodo.comA10043266.6
apnews.comB837429.3
economist.comB836951.9
forbes.comB8319522.6
arstechnica.comB8368332.5
ft.comB8319371.7

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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.