SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ksg-ob.jp
SSL/TLS Certificate
SSL/TLS Certificate for ksg-ob.jp
Self-signed- Issued by (CA)
- Plesk
- Subject
- Plesk
- Valid from
- Jun 6, 2024
- Valid until
- Jun 6, 2025 (expired 412 days ago)
- Public key
- RSA 2048-bit
- Serial
- 666177AA
- SHA-256 fingerprint
- 30:1E:51:12:F7:E1:A2:55:C4:92:E3:91:A0:2A:40:EF:16:67:DD:F1:8C:9E:6C:2D:0F:55:1B:08:5C:8B:08:20
- Chain
- Plesk
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
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
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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