Basecamp SSL certificate status

Valid — 74 days until expiry(basecamp.com)

This page shows the Basecamp SSL certificate as served by basecamp.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 07:44 UTC. CertPost is not affiliated with Basecamp.

Certificate details

Subjectbasecamp.com
IssuerWE1
Valid from2026-09-05
Expires2026-12-04
Days remaining74
Chain validyes
Hostname matchyes
Negotiated protocolTLSv1.3
TLS versions acceptedTLSv1.2, TLSv1.3

Hostnames this certificate covers

basecamp.com, *.basecamp.com

Certificate chain as served

basecamp.comissued by WE1 · expires 2026-12-04
WE1issued by GTS Root R4 · expires 2029-02-20
GTS Root R4issued by GlobalSign Root CA · expires 2028-01-28

Common questions

Is the Basecamp SSL certificate expired?

At the last check, the certificate basecamp.com serves was within its validity period. It expires on 2026-12-04, 74 days from that check.

When does the Basecamp SSL certificate expire?

The certificate basecamp.com is currently serving expires on 2026-12-04 (74 days from the last check). Large services rotate certificates long before that date.

Who issued the Basecamp SSL certificate?

The certificate was issued by WE1.

How is this checked?

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

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

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