Mailchimp SSL certificate status

Valid — 118 days until expiry(mailchimp.com)

This page shows the Mailchimp SSL certificate as served by mailchimp.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 07:45 UTC. CertPost is not affiliated with Mailchimp.

Certificate details

Subjectmailchimp.com
IssuerDigiCert Global G2 TLS RSA SHA256 2020 CA1
Valid from2026-01-09
Expires2027-01-16
Days remaining118
Chain validyes
Hostname matchyes
Negotiated protocolTLSv1.3
TLS versions acceptedTLSv1.2, TLSv1.3

Hostnames this certificate covers

mailchimp.com

Certificate chain as served

mailchimp.comissued by DigiCert Global G2 TLS RSA SHA256 2020 CA1 · expires 2027-01-16
DigiCert Global G2 TLS RSA SHA256 2020 CA1issued by DigiCert Global Root G2 · expires 2031-03-29
DigiCert Global Root G2self-signed (root) · expires 2038-01-15

Common questions

Is the Mailchimp SSL certificate expired?

At the last check, the certificate mailchimp.com serves was within its validity period. It expires on 2027-01-16, 118 days from that check.

When does the Mailchimp SSL certificate expire?

The certificate mailchimp.com is currently serving expires on 2027-01-16 (118 days from the last check). Large services rotate certificates long before that date.

Who issued the Mailchimp SSL certificate?

The certificate was issued by DigiCert Global G2 TLS RSA SHA256 2020 CA1.

How is this checked?

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

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

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