SSL/TLS Certificate Lookup
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up-fields.tokyo
SSL/TLS Certificate
SSL/TLS Certificate for up-fields.tokyo
Valid- Issued by (CA)
- Google Trust Services
- Subject
- up-fields.tokyo
- Valid from
- Aug 29, 2026
- Valid until
- Nov 27, 2026 (67 days remaining)
- Public key
- EC 256-bit
- Serial
- 65AEF9B435CE22B70EFF33B1BE91D781
- SHA-256 fingerprint
- BB:1A:71:E6:CC:60:CB:0D:11:84:2F:21:36:B5:30:2D:B0:D5:4C:00:FC:B9:4E:A5:B7:15:93:96:28:B2:6E:31
- Chain
- WE1 → GTS Root R4
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 11, 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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