SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
koma-booking.de
SSL/TLS Certificate
SSL/TLS Certificate for koma-booking.de
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- *.koma-booking.de
- Valid from
- Nov 23, 2025
- Valid until
- Dec 7, 2026 (129 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 1D86B723AA17A79CAC9DD9A6094F1089
- SHA-256 fingerprint
- 70:E5:74:22:46:34:1E:0D:45:03:1C:67:06:49:F9:FD:2A:7C:9D:65:5C:2A:C9:F7:79:DC:03:E1:6A:C0:85:78
- 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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