SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
hal.science
SSL/TLS Certificate
SSL/TLS Certificate for hal.science
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- *.hal.science
- Valid from
- Jul 23, 2026
- Valid until
- Feb 7, 2027 (188 days remaining)
- Public key
- RSA 3072-bit
- Serial
- 49DAADD175B98B14A96C7FC085D99A9B
- SHA-256 fingerprint
- CD:8C:26:49:AE:0B:8A:91:A2:CD:52:B4:A1:C4:A2:9B:7B:DB:55:E0:C3:8A:92:50:AA:2E:31:17:FF:61:EE:05
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Certificate Authority Authorization (CAA)
CAA restricts issuance to harica.gr, letsencrypt.org; we couldn't map the serving CA (Hellenic Academic and Research Institutions CA) to one of these identifiers.
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Uptime
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DNS changes
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TLS certificate
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