SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
cap-net.cz
SSL/TLS Certificate
SSL/TLS Certificate for cap-net.cz
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- *.cap-net.cz
- Valid from
- Oct 22, 2026
- Valid until
- Jan 20, 2027 (73 days remaining)
- Public key
- EC 256-bit
- Serial
- 05657C7B694A12FF31BDBD7A336CD7C67996
- SHA-256 fingerprint
- 8A:96:76:0E:AF:85:F3:51:A2:F2:04:C3:89:5B:A4:DF:4F:3E:F9:9A:44:ED:38:3D:AF:0D:B3:68:72:30:4B:C0
- Chain
- YE2 → Root YE → ISRG Root X2 → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
We've observed 1 previous certificate for this host. This certificate has been served since Sep 22, 2026.
Never get surprised by cap-net.cz's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch cap-net.cz continuously, notifying you the moment anything moves across all three signals:

Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.