SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
t-mac-niigata.jp
SSL/TLS Certificate
SSL/TLS Certificate for t-mac-niigata.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- t-mac-niigata.jp
- Valid from
- Nov 5, 2025
- Valid until
- Dec 7, 2026 (29 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 34DB484A030F731327BEABBB
- SHA-256 fingerprint
- 5E:D4:C6:1E:52:D4:A9:32:8B:18:B2:6A:11:31:80:37:66:25:DA:DB:E3:43:C6:70:1E:65:B4:25:23:BA:B1:05
- 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
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TLS certificate
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