SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
umwelt-campus.de
SSL/TLS Certificate
SSL/TLS Certificate for umwelt-campus.de
Hostname mismatch- Issued by (CA)
- Hellenic Academic and Research Institutions CA
- Subject
- www.umwelt-campus.de
- Valid from
- Jul 22, 2026
- Valid until
- Feb 6, 2027 (195 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0400AF1FEB2F8578968DA70072644365
- SHA-256 fingerprint
- D0:D3:52:A6:1B:86:3C:61:99:8C:38:58:88:BA:3D:E0:C0:8A:D0:E6:B5:97:BB:3D:A1:1A:17:1F:9F:50:9A:38
- 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 dfn.de, harica.gr, letsencrypt.org, pki.dfn.de, sectigo.com, telesec.de; 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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TLS certificate
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