Anthropic SSL certificate status
Valid — 88 days until expiry(anthropic.com)
This page shows the Anthropic SSL certificate as served by anthropic.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 2026-11-05 03:09 UTC. CertPost is not affiliated with Anthropic.
Certificate details
Hostnames this certificate covers
anthropic.com
Certificate chain as served
Common questions
Is the Anthropic SSL certificate expired?
At the last check, the certificate anthropic.com serves was within its validity period. It expires on 2027-02-01, 88 days from that check.
When does the Anthropic SSL certificate expire?
The certificate anthropic.com is currently serving expires on 2027-02-01 (88 days from the last check). Large services rotate certificates long before that date.
Who issued the Anthropic SSL certificate?
The certificate was issued by YE2.
How is this checked?
A CertPost probe opens a real TLS connection to anthropic.com on port 443 and reads the certificate the server presents, the same way a browser does. The result is cached and refreshed hourly.
Anthropic rotates certificates without downtime. Your own domains are the ones that expire quietly — watch 3 free, no card.
Monitor your certificatesOr run a one-off check with the free SSL checker.