How to Check an SSL Certificate

Learn how to check SSL certificates for any website. Multiple methods including online tools, browser inspection, and command-line OpenSSL checks.

Checking SSL certificates is essential for maintaining secure websites. Use our <a href="/ssl-checker">free SSL checker</a> for instant results. You can also check certificates directly in your browser by clicking the padlock icon in the address bar and viewing the certificate details. For advanced users, use OpenSSL: <code>openssl s_client -connect example.com:443</code>. Our tool provides all the information you need including issuer, expiry date, and fingerprint without any command-line knowledge.

Try It Now

Test your API performance instantly with our free tool. No registration required.

Millisecond-precision response times
DNS lookup & TTFB analysis
Support for all HTTP methods
Custom headers & body payloads
SSL certificate validation
Export results as JSON/CSV

Frequently Asked Questions

How to check SSL certificate in browser?

Click the padlock icon in the address bar, then click 'Connection is secure' and 'Certificate is valid' to view details.

How to check SSL certificate using OpenSSL?

Run: openssl s_client -connect example.com:443 -servername example.com

how to check ssl certificatecheck ssl certificatessl certificate verificationwebsite security checktls certificate check