SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tmk-kassel.de
SSL/TLS Certificate
SSL/TLS Certificate for tmk-kassel.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.tmk-kassel.de
- Valid from
- May 13, 2026
- Valid until
- Nov 23, 2026 (102 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 87A5EEF68A02D73C0E65E19BD33EA488
- SHA-256 fingerprint
- 6F:97:0B:61:FA:51:05:F2:16:C6:13:1C:9C:BD:C3:3A:AD:E2:F4:ED:3A:1A:F0:3A:AA:73:2E:F2:B8:8C:CB:5A
- 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
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