SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
1-jian.com
SSL/TLS Certificate
SSL/TLS Certificate for 1-jian.com
Valid- Issued by (CA)
- TrustAsia Technologies, Inc.
- Subject
- www.1-jian.com
- Valid from
- Jun 11, 2026
- Valid until
- Sep 9, 2026 (32 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 5DD83789DF2FB4485F97828E60D648596D177D76
- SHA-256 fingerprint
- F9:5F:18:BC:35:47:FE:B8:B9:70:97:46:BC:6B:9F:02:FB:7A:17:17:24:F3:53:B8:81:2C:0F:13:34:BD:AC:18
- Chain
- LiteSSL RSA CA 2025 → TrustAsia TLS RSA Root CA → Certum Trusted Network CA
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by 1-jian.com's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch 1-jian.com 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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