SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
portal.at
SSL/TLS Certificate
SSL/TLS Certificate for portal.at
Hostname mismatch- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- bev.portal.at
- Valid from
- Jul 29, 2026
- Valid until
- Feb 13, 2027 (153 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 52AA284CBBA8B391BAF159CF6F2CE8C7
- SHA-256 fingerprint
- B2:30:89:8B:7C:00:05:E4:6E:89:82:75:18:90:AA:C5:AB:DD:C1:68:D7:36:1D:73:F9:F6:11:3D:4D:49:61:6D
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021
Certificate Authority Authorization (CAA)
CAA restricts issuance to digicert.com, harica.gr, sectigo.com, thawte.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 23, 2026.
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