SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
refica.dk
SSL/TLS Certificate
SSL/TLS Certificate for refica.dk
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- refica.dk
- Valid from
- Aug 26, 2026
- Valid until
- Nov 24, 2026 (67 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05A777D9D7DAF8E0445F9DEEA6E8D165A0B1
- SHA-256 fingerprint
- C4:38:24:31:D3:D9:48:E4:D9:67:7C:36:2C:E7:90:FA:A3:EC:BD:01:73:23:13:78:2B:12:30:B5:6B:27:EB:C3
- 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 Sep 17, 2026.
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Uptime
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DNS changes
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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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