SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
kai-you.net
SSL/TLS Certificate
SSL/TLS Certificate for kai-you.net
Valid- Issued by (CA)
- Nijimo, Inc.
- Subject
- kai-you.net
- Valid from
- Dec 19, 2025
- Valid until
- Jan 19, 2027 (134 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 53D8D0BE866E1C863423A48C8FBAA767
- SHA-256 fingerprint
- 0C:CF:76:9D:58:E8:B4:36:A7:5A:1E:38:2E:4E:98:52:DA:F9:02:23:65:C4:68:EA:7B:73:93:9A:3D:A1:49:38
- 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.
This certificate has been served since Sep 3, 2026.
Never get surprised by kai-you.net'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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