SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kamura-dc.jp
SSL/TLS Certificate
SSL/TLS Certificate for kamura-dc.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.kamura-dc.jp
- Valid from
- May 3, 2026
- Valid until
- Nov 18, 2026 (97 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0105BA9E57EE61C139F9F96153F40B12
- SHA-256 fingerprint
- BB:86:8E:C8:C2:A9:A6:47:7A:BC:25:05:D2:A2:2F:0B:3C:15:F0:A0:6C:A8:62:0C:0A:74:2C:19:AF:65:AA:2B
- Chain
- GlobalSign Atlas R3 AlphaSSL CA 2026 Q2 → GlobalSign
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 Aug 5, 2026.
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Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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