SSL/TLS Certificate Lookup

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

nikoka.jp

SSL/TLS Certificate

WhoisRDAPDNS RecordsCertificateUptimeDiagnosticsHistoryHide Contact Info

SSL/TLS Certificate for nikoka.jp

Valid
Issued by (CA)
Let's Encrypt
Subject
www.nikoka.jp
Valid from
Jun 12, 2026
Valid until
Sep 10, 2026 (50 days remaining)
Public key
RSA 2048-bit
Serial
06B32971D5A4C7ED0BDB2279DF3DAF1B0D66
SHA-256 fingerprint
1D:8F:0B:B9:55:EE:58:BD:EF:B1:92:91:45:93:84:9B:E9:E3:4E:D7:54:67:C4:0F:24:6E:DB:65:91:67:B1:1C
Chain
YR1 → Root YR → ISRG Root X1
Subject Alternative Names (2)
nikoka.jp, www.nikoka.jp

Certificate Authority Authorization (CAA)

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