SSL/TLS Certificate Lookup

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

servers.guru

SSL/TLS Certificate

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SSL/TLS Certificate for servers.guru

Valid
Issued by (CA)
Let's Encrypt
Subject
servers.guru
Valid from
Jul 18, 2026
Valid until
Oct 16, 2026 (87 days remaining)
Public key
EC 256-bit
Serial
052D897636394170C9EE5FA8E9F849EA1CB5
SHA-256 fingerprint
AB:81:1F:C1:40:2D:C6:F5:9C:99:6C:D9:3F:72:58:8A:37:EF:E9:E8:82:D9:B4:F5:20:00:CE:41:A1:EB:32:90
Chain
YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (2)
redirect.mail.servers.guru, servers.guru

Certificate Authority Authorization (CAA)

The serving CA (Let's Encrypt) is authorized by this domain's CAA records (comodoca.com, digicert.com, letsencrypt.org, pki.goog, ssl.com).

This certificate has been served since Jul 20, 2026.