SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
tec-rc.jp
SSL/TLS Certificate
SSL/TLS Certificate for tec-rc.jp
Valid- Issued by (CA)
- Japan Registry Services Co., Ltd.
- Subject
- www.tec-rc.jp
- Valid from
- Oct 2, 2025
- Valid until
- Oct 31, 2026 (97 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5AE43ADCB9E36885EFD8578ADE6C759D
- SHA-256 fingerprint
- 9A:69:D2:AE:4B:9E:9D:BE:FD:B0:2E:A3:11:38:84:EF:2B:FE:D5:88:8E:A9:8A:F4:56:A4:59:66:40:AA:E2:50
- 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.
Never get surprised by tec-rc.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch tec-rc.jp continuously, notifying you the moment anything moves across all three signals:
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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