SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cktech.fr
SSL/TLS Certificate
SSL/TLS Certificate for cktech.fr
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- cktech.fr
- Valid from
- Sep 5, 2025
- Valid until
- Sep 26, 2026 (57 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 6058EE0C01D30E3A62ADA3CECF828A19
- SHA-256 fingerprint
- 18:BF:81:9B:C8:C8:5F:19:82:7F:C7:C1:0A:EF:D3:54:1A:6D:11:FF:F3:B7:A3:DF:7F:4B:C8:40:1F:58:53:F4
- 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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