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 shun-fung.com

Self-signed
Issued by (CA)
MEGA-C1.fastbox.hk
Subject
MEGA-C1.fastbox.hk
Valid from
Nov 5, 2026
Valid until
Nov 5, 2027 (357 days remaining)
Public key
RSA 4096-bit
Serial
16C9EEDF874203AD1B611EE69A33461A138531D4
SHA-256 fingerprint
88:5D:D1:0D:9B:EC:74:8D:1B:A2:28:32:C6:63:AD:E1:0E:60:9E:F2:29:38:0E:00:6B:5E:28:E3:91:3E:41:CF
Chain
MEGA-C1.fastbox.hk

Certificate Authority Authorization (CAA)

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

We've observed 1 previous certificate for this host. This certificate has been served since Sep 25, 2026.

Never get surprised by shun-fung.com's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch shun-fung.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.