SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
bo-sai.jp
SSL/TLS Certificate
SSL/TLS Certificate for bo-sai.jp
Valid- Issued by (CA)
- Nijimo, Inc.
- Subject
- *.bo-sai.jp
- Valid from
- Jun 11, 2026
- Valid until
- Dec 26, 2026 (133 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 3BD652245A8F53822FC494155B9AC070
- SHA-256 fingerprint
- 41:15:6A:04:A2:CF:91:8C:81:24:3F:9A:D3:E6:9E:B0:EB:AB:D2:77:DF:59:25:DF:60:80:61:6F:AC:28:9E:95
- 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 bo-sai.jp's certificate expiring
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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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