SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sem-bau.de
SSL/TLS Certificate
SSL/TLS Certificate for sem-bau.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- sem-bau.de
- Valid from
- Jun 5, 2026
- Valid until
- Dec 20, 2026 (107 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 754C39144B00D73CADC11F409E89197A
- SHA-256 fingerprint
- 83:18:86:78:19:27:8D:94:A0:E2:1F:BC:CB:9C:43:2C:A0:B9:4C:6A:78:D7:39:EC:47:58:14:6A:79:D2:3A:87
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Aug 28, 2026.
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Uptime
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DNS changes
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TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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