SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ruhrweb.de
SSL/TLS Certificate
SSL/TLS Certificate for ruhrweb.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.ruhrweb.de
- Valid from
- Mar 31, 2026
- Valid until
- Oct 11, 2026 (82 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0C2CF953E72CCC8C55C693143C1B8735
- SHA-256 fingerprint
- 56:EC:7D:CE:1B:83:08:34:5F:25:EF:06:B2:95:B2:D7:05:11:B7:2A:56:3C:76:2F:2D:B9:1D:70:3F:BE:FA:D2
- 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.