SSL/TLS Certificate Lookup

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

oust.edu.pl

SSL/TLS Certificate

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SSL/TLS Certificate for oust.edu.pl

Valid
Issued by (CA)
Google Trust Services
Subject
oust.edu.pl
Valid from
Jul 9, 2026
Valid until
Oct 7, 2026 (79 days remaining)
Public key
EC 256-bit
Serial
C1F574C244B2660813A49E324261205E
SHA-256 fingerprint
D1:4C:7E:71:CF:17:34:12:8A:F4:39:53:4D:34:A9:48:9E:11:A7:DE:9C:CD:B9:C9:13:4E:01:2F:81:D3:01:10
Chain
WE1 → GTS Root R4
Subject Alternative Names (2)
*.oust.edu.pl, oust.edu.pl

Certificate Authority Authorization (CAA)

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