SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gecon-geophysik.de
SSL/TLS Certificate
SSL/TLS Certificate for gecon-geophysik.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.gecon-geophysik.de
- Valid from
- Jul 24, 2026
- Valid until
- Feb 3, 2027 (143 days remaining)
- Public key
- RSA 2048-bit
- Serial
- F33DA1A8E267EF4E81EE28FF690A1876
- SHA-256 fingerprint
- 5F:FC:F1:AB:B2:02:CF:E8:B4:79:B3:C8:53:82:C6:46:65:F6:0E:0D:3D:FF:49:97:B9:8D:93:13:E8:18:5D:C3
- 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
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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