SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
centan.jp
SSL/TLS Certificate
SSL/TLS Certificate for centan.jp
Hostname mismatch- Issued by (CA)
- Cybertrust Japan Co., Ltd.
- Subject
- www.centan.jp
- Valid from
- Nov 13, 2025
- Valid until
- Nov 28, 2026 (112 days remaining)
- Public key
- RSA 4096-bit
- Serial
- 10148058419031A5B143D8A9B6AB2379C5B14223
- SHA-256 fingerprint
- 7F:39:56:40:D7:81:D9:D9:4F:E2:82:08:2F:D0:1A:CF:90:B0:0D:61:6C:F5:A8:E5:A2:BF:67:80:36:71:1F:54
- Chain
- Cybertrust Japan SureServer EV CA G3
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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