SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gesem-group.de
SSL/TLS Certificate
SSL/TLS Certificate for gesem-group.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.gesem-group.de
- Valid from
- Sep 29, 2026
- Valid until
- Apr 11, 2027 (178 days remaining)
- Public key
- RSA 2048-bit
- Serial
- C27D321933AB975841EBDFCFB2B5AFA5
- SHA-256 fingerprint
- 41:A7:2E:88:E0:79:33:4A:78:80:75:B6:B9:56:0D:70:89:5A:04:59:CB:DD:F9:29:B1:4B:51:08:02:D5:BE:54
- 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 21, 2026.
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Uptime
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DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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