SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for ki.si
Untrusted chain- Issued by (CA)
- Sectigo Limited
- Subject
- *.ki.si
- Valid from
- Dec 15, 2025
- Valid until
- Jan 15, 2027 (159 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 6C753874F5A6080A652503B807F48656
- SHA-256 fingerprint
- 6A:96:0B:10:ED:77:13:8D:35:A4:30:51:17:68:A7:3E:B4:E7:94:61:C9:DB:3F:C0:96:02:BF:B7:F8:DB:36:8C
- Chain
- —
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 5, 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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