How can I test if my website’s SSL certificate is valid?
Asked on Sep 26, 2025
Answer
To test if your website's SSL certificate is valid, you can use online SSL checker tools or command-line utilities like OpenSSL to verify the certificate's details, including its expiration date and chain of trust.
openssl s_client -connect yourdomain.com:443 -servername yourdomain.com
Additional Comment:
- Use the command above in a terminal to connect to your website and retrieve SSL certificate details.
- Look for the "Verify return code: 0 (ok)" line, which indicates a valid certificate.
- Check the "Certificate chain" section to ensure all intermediate certificates are correctly installed.
- Online SSL checkers like SSL Labs can provide a detailed analysis of your SSL setup.
- Ensure your certificate is not expired and matches the domain name.
Recommended Links: