SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
trust-12.jp
SSL/TLS Certificate
SSL/TLS Certificate for trust-12.jp
Valid- Issued by (CA)
- Amazon
- Subject
- trust-12.jp
- Valid from
- Jul 2, 2026
- Valid until
- Jan 15, 2027 (135 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 0BF55842BDAF77EDC9E9D73AF9BEBB38
- SHA-256 fingerprint
- 9C:1A:32:A3:77:D2:0B:8D:60:D4:39:06:3B:F2:88:B6:BF:55:05:A3:AE:52:2C:AC:8A:96:CF:85:14:58:51:4B
- Chain
- Amazon RSA 2048 M01 → Amazon Root CA 1 → Starfield Services Root Certificate Authority - G2
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 Aug 21, 2026.
Never get surprised by trust-12.jp's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch trust-12.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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