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 shiguang-expo.com

Valid
Issued by (CA)
Asseco Data Systems S.A.
Subject
shiguang-expo.com
Valid from
Sep 11, 2026
Valid until
Mar 29, 2027 (159 days remaining)
Public key
RSA 2048-bit
Serial
25C01DA38969B925D1BC48DBF5F45CA8
SHA-256 fingerprint
30:77:49:F2:CC:38:96:01:D0:5E:D7:87:B7:24:EB:8B:DC:7E:89:D1:79:6A:68:28:78:4C:A3:CC:57:4D:6A:55
Chain
Certum DV TLS G2 R39 CA → Certum Trusted Root CA → Certum Trusted Network CA
Subject Alternative Names (2)
shiguang-expo.com, www.shiguang-expo.com

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by shiguang-expo.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch shiguang-expo.com 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.