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 kb-school.com

Valid
Issued by (CA)
Let's Encrypt
Subject
kb-style.com
Valid from
Aug 9, 2026
Valid until
Nov 7, 2026 (83 days remaining)
Public key
RSA 2048-bit
Serial
0618922D1DB8C383772EEFB1D077B6EFD056
SHA-256 fingerprint
36:E9:7E:D0:D0:70:45:65:0E:DE:7A:85:D5:D4:FD:D9:8A:81:A8:58:5A:D9:39:B2:C6:C5:FC:42:40:3B:77:37
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (16)
autoconfig.kb-school.com, autodiscover.kb-school.com, cpanel.kb-school.com, cpcalendars.kb-school.com, cpcontacts.kb-school.com, kb-school.com, kb-style.com, kb.nismedia.si, mail.kb-school.com, mail.kb-style.com, mail.kb.nismedia.si, webdisk.kb-school.com, webmail.kb-school.com, www.kb-school.com, www.kb-style.com, www.kb.nismedia.si

Certificate Authority Authorization (CAA)

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

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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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