SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
jam.ne.jp
SSL/TLS Certificate
SSL/TLS Certificate for jam.ne.jp
Expired- Issued by (CA)
- GlobalSign nv-sa
- Subject
- jam.ne.jp
- Valid from
- May 14, 2025
- Valid until
- Jun 15, 2026 (expired 40 days ago)
- Public key
- RSA 2048-bit
- Serial
- 6E185939FB6527D0F96AC6E8
- SHA-256 fingerprint
- F3:23:90:BD:9F:76:B9:D1:CE:28:9C:7B:7D:39:72:4B:4F:91:4D:83:8A:EA:E9:2A:C7:F8:BC:5A:27:1D:E1:B0
- Chain
- GlobalSign GCC R3 DV TLS CA 2020 → GlobalSign
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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