SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for gz-jufeng.com

Expired
Issued by (CA)
TrustAsia Technologies, Inc.
Subject
gz-jufeng.com
Valid from
Jun 5, 2026
Valid until
Sep 3, 2026 (expired 32 days ago)
Public key
RSA 2048-bit
Serial
706D87353FEE3279F8C875847D794B2B425DF1E9
SHA-256 fingerprint
56:BC:ED:90:3A:94:44:C6:D9:B5:F5:71:14:31:D4:3B:68:4B:D5:BC:3B:08:40:8A:1C:83:D7:F8:BF:82:CC:D9
Chain
LiteSSL RSA CA 2025 → TrustAsia TLS RSA Root CA → Certum Trusted Network CA
Subject Alternative Names (3)
gz-jufeng.com, m.gz-jufeng.com, www.gz-jufeng.com

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 18, 2026.

Never get surprised by gz-jufeng.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gz-jufeng.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.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.