SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
messmer-pen.de
SSL/TLS Certificate
SSL/TLS Certificate for messmer-pen.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- www.messmer-pen.de
- Valid from
- Feb 23, 2026
- Valid until
- Mar 9, 2027 (221 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 4542823AC2D22F93525B0C7F2D9F86AF
- SHA-256 fingerprint
- C4:77:0A:C8:FC:58:32:79:8A:57:EA:5F:B7:AE:7A:D3:63:D9:B9:5B:59:F5:60:E1:15:04:E4:0F:B9:36:08:0C
- 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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