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 ue.poznan.pl

Valid
Issued by (CA)
Hellenic Academic and Research Institutions CA
Subject
*.ue.poznan.pl
Valid from
Jul 22, 2026
Valid until
Feb 6, 2027 (86 days remaining)
Public key
EC 256-bit
Serial
6A337B8DDACD78E6E9024970C3906E74
SHA-256 fingerprint
D0:A6:C3:7A:E5:BC:02:2B:95:60:25:47:66:EA:3E:10:2F:D1:38:19:FF:62:F2:56:8D:EE:7A:4A:B2:EB:36:5D
Chain
GEANT TLS ECC 1 → HARICA TLS ECC Root CA 2021 → Hellenic Academic and Research Institutions ECC RootCA 2015
Subject Alternative Names (2)
*.ue.poznan.pl, ue.poznan.pl

Certificate Authority Authorization (CAA)

CAA restricts issuance to comodoca.com, digicert.com, geotrust.com, harica.gr, letsencrypt.org, rapidssl.com, sectigo.com, trust-provider.com, usertrust.com; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.

This certificate has been served since Aug 4, 2026.

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