SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
SSL/TLS Certificate for canau.jp
Valid- Issued by (CA)
- GlobalSign nv-sa
- Subject
- www.canau.jp
- Valid from
- Nov 19, 2025
- Valid until
- Dec 21, 2026 (60 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 69EC6BD7495AF8DA09369114
- SHA-256 fingerprint
- C0:8B:72:E3:21:6B:09:70:A6:DB:DB:70:4A:7D:FE:1A:EA:23:59:9B:AB:AB:FA:23:C6:C7:0F:1A:AA:4B:0A:42
- 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.
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, CNAME, TXT 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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