SSL/TLS Certificate Lookup

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

roko.at

SSL/TLS Certificate

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SSL/TLS Certificate for roko.at

Untrusted chain
Issued by (CA)
Let's Encrypt
Subject
roko.at
Valid from
Jun 6, 2026
Valid until
Sep 4, 2026 (44 days remaining)
Public key
RSA 2048-bit
Serial
05CE135BD57160325AEB46E04E9D6D278C21
SHA-256 fingerprint
5A:0C:2F:EC:7A:80:BE:F1:19:03:72:77:36:12:1C:38:0D:34:F6:CB:16:78:32:E8:D8:2A:C9:39:1D:8C:5A:5C
Chain
YR2
Subject Alternative Names (2)
roko.at, www.roko.at

Certificate Authority Authorization (CAA)

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