RubyGems SSL certificate status
Valid — 170 days until expiry(rubygems.org)
This page shows the RubyGems SSL certificate as served by rubygems.org, 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 04:58 UTC. CertPost is not affiliated with RubyGems.
Certificate details
Hostnames this certificate covers
rubygems.org, *.rubygems.org, *.staging.rubygems.org, staging.rubygems.org
Certificate chain as served
Common questions
Is the RubyGems SSL certificate expired?
At the last check, the certificate rubygems.org serves was within its validity period. It expires on 2027-03-09, 170 days from that check.
When does the RubyGems SSL certificate expire?
The certificate rubygems.org is currently serving expires on 2027-03-09 (170 days from the last check). Large services rotate certificates long before that date.
Who issued the RubyGems SSL certificate?
The certificate was issued by GlobalSign Atlas R3 DV TLS CA 2026 Q1.
How is this checked?
A CertPost probe opens a real TLS connection to rubygems.org on port 443 and reads the certificate the server presents, the same way a browser does. The result is cached and refreshed hourly.
RubyGems 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.