SSL/TLS Certificate Lookup

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

SSL/TLS Certificate for it-ac.ru

Expired
Issued by (CA)
Let's Encrypt
Subject
it-ac.ru
Valid from
Jul 29, 2026
Valid until
Oct 27, 2026 (expired 6 days ago)
Public key
RSA 2048-bit
Serial
061B4C0A85DA9F1FA587AA570C1D8905A75F
SHA-256 fingerprint
A6:19:A9:E2:50:74:8A:13:5B:04:99:AF:1C:E7:2A:D9:62:98:14:81:E6:63:FF:FE:0A:3C:64:46:48:5E:D2:C7
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (5)
it-ac.ceospb.ru, it-ac.ru, mail.it-ac.ru, www.it-ac.ceospb.ru, www.it-ac.ru

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 1, 2026.

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TLS certificate

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