SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

mattdeegan.com

SSL/TLS Certificate

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SSL/TLS Certificate for mattdeegan.com

Valid

Issued by (CA): Let's Encrypt
Subject: webmail.mattdeegan.com
Valid from: Jul 2, 2026
Valid until: Sep 30, 2026 (70 days remaining)
Public key: RSA 2048-bit
Serial: 055C91801AF42C2CC747FA1F46080F2BD8F9
SHA-256 fingerprint: EC:DC:B3:0C:C4:FD:63:41:2B:57:8D:9B:8E:B4:19:88:53:EF:4C:75:6C:29:9A:30:41:AE:FD:1D:F7:53:28:9F
Chain: YR2 → Root YR → ISRG Root X1

Subject Alternative Names (22)

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Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.