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 esec.pt
Hostname mismatch- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- www.esec.pt
- Valid from
- Nov 28, 2025
- Valid until
- Nov 28, 2026 (126 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 24180E2AAC736868E353139AB5CC9260
- SHA-256 fingerprint
- EC:CF:F2:C1:FB:EE:32:88:AF:33:4E:93:FF:BF:88:B3:6A:12:7B:9A:69:45:83:D3:E9:D5:B0:82:01:C0:B8:5E
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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Uptime
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DNS changes
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TLS certificate
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