SSL/TLS Certificate Lookup

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

kattedra.com

SSL/TLS Certificate

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SSL/TLS Certificate for kattedra.com

Valid
Issued by (CA)
Let's Encrypt
Subject
kattedra.com
Valid from
Jun 13, 2026
Valid until
Sep 11, 2026 (52 days remaining)
Public key
RSA 2048-bit
Serial
062AA1E3582A48206FCCF594750947FD7525
SHA-256 fingerprint
6B:12:03:9A:65:F0:75:2B:97:68:AE:DA:F2:C6:9A:C8:48:21:A1:F2:FD:A2:50:4A:6E:D9:62:98:B1:48:03:19
Chain
YR2 → Root YR → ISRG Root X1
Subject Alternative Names (2)
kattedra.com, www.kattedra.com

Certificate Authority Authorization (CAA)

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