SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

mathiasson.dk

SSL/TLS Certificate

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SSL/TLS Certificate for mathiasson.dk

Valid
Issued by (CA)
Let's Encrypt
Subject
mathiasson.dk
Valid from
Jun 6, 2026
Valid until
Sep 4, 2026 (45 days remaining)
Public key
RSA 2048-bit
Serial
05963FFDDCF07B2A848DDF8FA75C4E99E075
SHA-256 fingerprint
54:4A:DF:AB:F5:72:EE:81:D6:60:C7:16:2A:7A:1D:B3:DF:40:BF:59:60:A4:20:88:A2:13:10:48:DF:67:0C:DC
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
mathiasson.dk

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.