SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
com-ix.jp
SSL/TLS Certificate
SSL/TLS Certificate for com-ix.jp
Expiring soon- Issued by (CA)
- Let's Encrypt
- Subject
- com-ix.jp
- Valid from
- Jun 26, 2026
- Valid until
- Sep 24, 2026 (15 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 059686827D0805C6CE094A2CD3574769793A
- SHA-256 fingerprint
- A9:E5:A3:64:14:81:B8:B4:AE:51:B3:F8:9A:CD:1A:C0:2C:F2:22:45:29:F3:2F:E7:66:75:F3:CE:DF:32:8A:98
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by com-ix.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch com-ix.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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