The Guardian SSL certificate status

Valid — 166 days until expiry(theguardian.com)

This page shows the The Guardian SSL certificate as served by theguardian.com, read from a live TLS handshake by an independent CertPost probe and rechecked hourly: expiry, issuer, hostname coverage, the full chain, and the negotiated protocol.

Last checked 2026-09-20 07:49 UTC. CertPost is not affiliated with The Guardian.

Certificate details

Subjecttheguardian.com
IssuerGlobalSign Atlas R46 DV TLS CA 2026 Q3
Valid from2026-08-18
Expires2027-03-05
Days remaining166
Chain validyes
Hostname matchyes
Negotiated protocolTLSv1.3
TLS versions acceptedTLSv1.2, TLSv1.3

Hostnames this certificate covers

theguardian.com, *.code.dev-guardianapis.com, *.code.dev-theguardian.com, *.dev-theguardian.com, *.editorial.theguardian.com, *.email.theguardian.com, *.guardian.co.uk, *.guardianapis.com, *.guim.co.uk, *.guimcode.co.uk, *.ophan.co.uk, *.qa.dev-guardianapis.com, *.service.theguardian.com, *.theguardian.co.uk, *.theguardian.com, *.theguardian.design, api.nextgen.guardianapps.co.uk, code.api.nextgen.guardianapps.co.uk, dev-gutools.co.uk, dev-theguardian.com, guardian.co.uk, guim.co.uk, gutools.co.uk, i.guimcode.co.uk, media.guim.co.uk, subscribe.theguardian.com, theguardian.co.uk, theguardian.design, *.wordiply.com, wordiply.com, theguardianfoundation.org, theguardian.org, *.theguardian.tv

Certificate chain as served

theguardian.comissued by GlobalSign Atlas R46 DV TLS CA 2026 Q3 · expires 2027-03-05
GlobalSign Atlas R46 DV TLS CA 2026 Q3issued by GlobalSign Root R46 · expires 2028-04-22
GlobalSign Root R46issued by GlobalSign · expires 2029-03-18
GlobalSignself-signed (root) · expires 2029-03-18

Common questions

Is the The Guardian SSL certificate expired?

At the last check, the certificate theguardian.com serves was within its validity period. It expires on 2027-03-05, 166 days from that check.

When does the The Guardian SSL certificate expire?

The certificate theguardian.com is currently serving expires on 2027-03-05 (166 days from the last check). Large services rotate certificates long before that date.

Who issued the The Guardian SSL certificate?

The certificate was issued by GlobalSign Atlas R46 DV TLS CA 2026 Q3.

How is this checked?

A CertPost probe opens a real TLS connection to theguardian.com on port 443 and reads the certificate the server presents, the same way a browser does. The result is cached and refreshed hourly.

The Guardian rotates certificates without downtime. Your own domains are the ones that expire quietly — watch 3 free, no card.

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