SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wsg-bielefeld.de
SSL/TLS Certificate
SSL/TLS Certificate for wsg-bielefeld.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.wsg-bielefeld.de
- Valid from
- Sep 29, 2025
- Valid until
- Sep 29, 2026 (61 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 112F635ECFC1F01346F916411B8FC771
- SHA-256 fingerprint
- C3:BB:88:3E:E0:A7:6B:5B:95:B1:44:53:E8:55:6E:1D:57:D3:CE:74:C1:85:4E:D5:4E:17:26:44:AF:A1:FE:18
- 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.
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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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