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 nn-sk.sk
Valid- Issued by (CA)
- DigiCert Inc
- Subject
- nn-slovakia.sk
- Valid from
- Sep 3, 2025
- Valid until
- Sep 3, 2026 (26 days remaining)
- Public key
- EC 256-bit
- Serial
- 0382416251CE20B21A9FAC7C5E08327A
- SHA-256 fingerprint
- FD:B7:F6:B7:1C:12:99:27:14:D7:72:70:E9:B1:17:08:5C:CD:A0:30:84:CC:9C:A4:FE:67:23:92:85:F7:82:7F
- Chain
- DigiCert Global G3 TLS ECC SHA384 2020 CA1 → DigiCert Global Root G3
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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