SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
gotodensan.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for gotodensan.co.jp
Hostname mismatch- Issued by (CA)
- Nijimo, Inc.
- Subject
- ashizawanouen.jp
- Valid from
- Apr 2, 2026
- Valid until
- Oct 17, 2026 (65 days remaining)
- Public key
- RSA 2048-bit
- Serial
- F61147C8BB5DFA9C06339E0EBC354C39
- SHA-256 fingerprint
- 15:C9:E6:8C:4B:83:E1:CC:E7:67:D2:0D:BB:BF:CB:1A:45:13:5A:B7:BA:7D:63:99:65:A6:1F:45:70:84:AB:0E
- Chain
- FujiSSL RSA Domain Validation Secure Server CA 2 → Sectigo Public Server Authentication Root R46 → USERTrust RSA Certification Authority
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by gotodensan.co.jp's certificate expiring
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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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