SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
theo-web.de
SSL/TLS Certificate
SSL/TLS Certificate for theo-web.de
Valid- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- lb2.cweb.univie.ac.at
- Valid from
- Jul 27, 2026
- Valid until
- Feb 11, 2027 (198 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 34A330E54236DD2F1369DF8FD5FCE67D
- SHA-256 fingerprint
- 14:26:02:81:0C:37:45:8D:DB:83:71:74:CA:A9:E1:48:A6:B8:10:2C:35:16:DC:8C:A3:C6:49:44:6F:9D:BD:3E
- Chain
- GEANT TLS RSA 1 → HARICA TLS RSA Root CA 2021 → Hellenic Academic and Research Institutions RootCA 2015
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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DNS changes
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TLS certificate
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