SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tem-tech.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for tem-tech.co.jp
Valid- Issued by (CA)
- Cybertrust Japan Co., Ltd.
- Subject
- tem-tech.co.jp
- Valid from
- Jan 30, 2026
- Valid until
- Jan 31, 2027 (126 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 400D82FF6579D7B4AA43DF719E0118CA31130951
- SHA-256 fingerprint
- B5:98:96:AA:7A:15:66:48:32:10:58:28:C2:81:20:BA:6D:02:78:02:28:C3:9E:97:BD:93:5D:A0:9D:D9:6A:3A
- Chain
- Cybertrust Japan SureServer CA G4
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 Sep 14, 2026.
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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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