SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kozmo-data.sk
SSL/TLS Certificate
SSL/TLS Certificate for kozmo-data.sk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- kozmo-data.sk
- Valid from
- Jun 9, 2026
- Valid until
- Sep 7, 2026 (29 days remaining)
- Public key
- EC 384-bit
- Serial
- 062EA5785DD32C7BE757AC245121AB78D9B5
- SHA-256 fingerprint
- 1D:AB:FC:3B:33:13:36:0B:1B:BB:30:82:FF:66:34:68:0D:32:90:38:C3:86:E5:F5:C0:E7:A1:69:12:5E:FC:E4
- 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.
Never get surprised by kozmo-data.sk's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch kozmo-data.sk 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, 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.