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 sadit.dk
Hostname mismatch- Issued by (CA)
- Let's Encrypt
- Subject
- web12.curanet.dk
- Valid from
- Aug 11, 2026
- Valid until
- Nov 9, 2026 (65 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 054DEC6495703DF73E9A0E549CF6E4E88805
- SHA-256 fingerprint
- 49:D8:3B:16:BB:12:4E:24:F9:47:13:8A:18:87:04:B1:1E:9A:BD:6B:FA:16:76:45:3B:4B:18:0A:06:F1:9A:C5
- Chain
- YR2 → Root YR → ISRG Root X1
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 4, 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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