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 gzsfj.gov.cn

Expired
Issued by (CA)
TrustAsia Technologies, Inc.
Subject
popularizinglaw-pay.gzsfj.gov.cn
Valid from
Jul 5, 2023
Valid until
Jul 4, 2024 (expired 863 days ago)
Public key
RSA 2048-bit
Serial
25F11EEA5D19043BD8BA4CB0D2A563B3
SHA-256 fingerprint
63:F1:2E:C5:EA:43:CA:A3:80:40:6C:13:B0:77:49:2D:B7:EA:F0:50:05:E7:45:DF:FA:C4:CF:97:A8:B2:D5:BA
Chain
TrustAsia RSA DV TLS CA G2
Subject Alternative Names (1)
popularizinglaw-pay.gzsfj.gov.cn

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 gzsfj.gov.cn's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch gzsfj.gov.cn continuously, notifying you the moment anything moves across all three signals:

Certificate monitor showing the issuer, expiry date, chain status, fingerprint, covered names, and a history of a rotation and an expiry warning

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, CNAME, TXT 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.