🔒 SSL Certificate Checker for facebook.com

Free, instant results. No signup. No API keys.

Subject	*.facebook.com
Issuer	DigiCert Inc (DigiCert Global G2 TLS RSA SHA256 2020 CA1)
Valid From	May 16, 2026
Valid Until	Aug 14, 2026 (8 days left)
SANs	DNS:.facebook.com, DNS:.facebook.net, DNS:.fbcdn.net, DNS:.fbsbx.com, DNS:.m.facebook.com, DNS:.messenger.com, DNS:.xx.fbcdn.net, DNS:.xy.fbcdn.net, DNS:*.xz.fbcdn.net, DNS:facebook.com, DNS:messenger.com
Serial	14642747231601454607377390314026494966

Is facebook.com down?

Now that you've seen the technical details, check if the site is actually working.

Check Live Status

Try other free tools

🔍 WHOIS Lookup 🌐 DNS Records ⚡ Site Speed Test

What is SSL Certificate Checker?

An SSL/TLS certificate encrypts the connection between a visitor's browser and a website's server. Our SSL checker connects directly to the server on port 443, retrieves the certificate chain, and parses it to show the issuer, validity dates, subject, and Subject Alternative Names (SANs). This helps you verify that a site's certificate is valid, not expired, and issued by a trusted Certificate Authority.