SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
wakasa-c.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for wakasa-c.co.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- www.wakasa-c.co.jp
- Valid from
- Oct 1, 2025
- Valid until
- Oct 31, 2026 (76 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0330A5800D184EE04D8E69744955100F
- SHA-256 fingerprint
- 50:F5:2E:4A:A5:93:C5:73:FB:58:6F:5D:A4:B2:A6:1E:D6:D9:BA:10:95:4A:9F:0C:F4:B0:9F:2C:71:EC:DD:64
- Chain
- JPRS Domain Validation Authority - G4
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
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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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