SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ai-kaigo.jp
SSL/TLS Certificate
SSL/TLS Certificate for ai-kaigo.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.ai-kaigo.jp
- Valid from
- Sep 23, 2025
- Valid until
- Oct 25, 2026 (90 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 03BB2C946E9408FC0D84932D
- SHA-256 fingerprint
- A6:B4:27:6C:20:3D:B4:13:09:C5:D4:5D:AB:E1:7F:C9:27:E6:86:1E:29:A5:BE:8F:F6:BF:5B:95:D6:76:5F:1F
- Chain
- GlobalSign GCC R6 AlphaSSL CA 2025 → 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
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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