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 ohisama-seikotsuin.net

Valid
Issued by (CA)
Let's Encrypt
Subject
ohisama-seikotsuin.net
Valid from
Oct 10, 2026
Valid until
Jan 8, 2027 (82 days remaining)
Public key
RSA 2048-bit
Serial
051DE6DAA0A0F1B159ACFC021224594433BC
SHA-256 fingerprint
66:6F:D6:05:CF:04:E9:D5:DE:FD:14:F3:74:78:11:97:CF:32:24:37:74:CD:EA:FD:53:42:8B:A1:AB:2C:40:99
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (4)
mail.ohisama-seikotsuin.net, ohisama-seikotsuin.net, webmail.ohisama-seikotsuin.net, www.ohisama-seikotsuin.net

Certificate Authority Authorization (CAA)

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

This certificate has been served since Oct 1, 2026.

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Uptime

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DNS changes

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TLS certificate

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