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 cpa.si
Valid- Issued by (CA)
- Sectigo Limited
- Subject
- cpa.si
- Valid from
- Mar 4, 2026
- Valid until
- Apr 3, 2027 (194 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 2001AD55215597B4A4F3342B6AF5DE72
- SHA-256 fingerprint
- 6F:91:A1:F3:07:00:50:7B:39:FB:20:BA:77:19:A3:35:F9:C9:E6:F7:26:41:73:2A:41:06:5F:62:3F:40:6D:BD
- Chain
- Sectigo Public Server Authentication CA DV R36 → Sectigo Public Server Authentication Root R46
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 22, 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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