SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
takama-cp.co.jp
SSL/TLS Certificate
SSL/TLS Certificate for takama-cp.co.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- takama-cp.co.jp
- Valid from
- Jul 30, 2026
- Valid until
- Oct 27, 2026 (74 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 6EA4C9AE576F65F7ED3D3A5535949A68
- SHA-256 fingerprint
- 5B:A5:8A:E6:0B:68:DE:94:6B:CB:64:A8:0B:83:09:8C:EA:8A:1F:75:FB:42:62:95:FB:13:0F:79:75:10:A1:32
- Chain
- JPRS DV RSA CA 2024 G1 → SECOM TLS RSA Root CA 2024
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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