SSL/TLS Certificate Lookup

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

sbgu.com.pl

SSL/TLS Certificate

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SSL/TLS Certificate for sbgu.com.pl

Valid
Issued by (CA)
Let's Encrypt
Subject
mail.sbgu.com.pl
Valid from
Jun 30, 2026
Valid until
Sep 28, 2026 (68 days remaining)
Public key
EC 384-bit
Serial
059907BA956747FC479AC2BE99B7C11EEF05
SHA-256 fingerprint
93:A9:36:A9:03:68:F6:EB:BD:E2:21:51:AF:8C:80:7E:30:25:43:11:B0:8E:02:BB:C4:86:5D:05:49:78:25:AA
Chain
YE1 → Root YE → ISRG Root X2 → ISRG Root X1
Subject Alternative Names (3)
mail.sbgu.com.pl, sbgu.com.pl, www.sbgu.com.pl

Certificate Authority Authorization (CAA)

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