SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tepco-ht.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for tepco-ht.co.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- *.tepco-ht.co.jp
- Valid from
- Aug 20, 2026
- Valid until
- Mar 7, 2027 (112 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 59AA007CEF3C1E16FA80EDA9
- SHA-256 fingerprint
- 23:01:02:9E:6A:8F:2C:6B:7C:5D:63:8D:8A:DB:E0:ED:B5:BE:0E:CE:24:3E:1B:C6:FC:0D:8D:0E:B9:3D:ED:A0
- Chain
- GlobalSign GCC R46 OV TLS CA 2025 → GlobalSign Root R46
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 Oct 4, 2026.
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Uptime
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DNS changes
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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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