SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
e-otakara.jp
SSL/TLS Certificate
SSL/TLS Certificate for e-otakara.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.e-otakara.jp
- Valid from
- Oct 19, 2025
- Valid until
- Oct 19, 2026 (81 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 01E765BD19FCD5B908C5C5A2365D6DF9
- SHA-256 fingerprint
- CD:D6:2C:66:FF:37:8B:15:5D:09:72:11:E9:C0:33:98:34:AA:31:1E:5A:06:3E:4D:90:A7:26:79:B2:FC:9A:68
- Chain
- GlobalSign Atlas R3 AlphaSSL CA 2025 Q4 → 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
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
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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