SSL/TLS Certificate Lookup

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

diveplan.org

SSL/TLS Certificate

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SSL/TLS Certificate for diveplan.org

Valid
Issued by (CA)
Let's Encrypt
Subject
diveplan.org
Valid from
Jun 20, 2026
Valid until
Sep 18, 2026 (59 days remaining)
Public key
RSA 4096-bit
Serial
05B948D9BC883F4907005FAB3665A357C2AF
SHA-256 fingerprint
EA:DC:73:C5:28:13:C4:B4:8B:66:A9:C2:34:DC:5D:D0:48:AF:B0:11:2B:30:72:D6:CA:CF:E6:C1:B4:E5:98:85
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (1)
diveplan.org

Certificate Authority Authorization (CAA)

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