How to check if the SSL certificate is valid in the browser?

To check if an SSL certificate is valid in a browser, you can follow these steps:

1. Open the Website: Navigate to the website you want to check in your web browser.

2. Inspect the Certificate:

   • Chrome: Click on the padlock icon in the address bar, then click on "Certificate". This will open a window showing the certificate details.
   • Firefox: Click on the padlock icon in the address bar, then click on the right arrow and select "View Certificate".
   • Safari: Click on the padlock icon in the address bar, then click on "Show Certificate".

3. Check Validity Period: In the certificate window, look for the "Validity" section. This will show you the start and end dates of the certificate's validity.

4. Verify Issuer: Ensure that the certificate is issued by a trusted Certificate Authority (CA). The issuer information is usually found under the "Issuer" section.

5. Check for Errors: If there are any issues with the certificate, such as an expired date or an untrusted issuer, the browser will display a warning message.

Example: If you visit https://example.com, you should see a padlock icon in the address bar. Clicking on this icon and inspecting the certificate will show you the validity period and issuer information.

For enhanced security and to ensure your website's SSL certificate is always valid and trusted, consider using services like Tencent Cloud's SSL Certificate Service. This service provides a wide range of SSL certificates and helps manage the entire certificate lifecycle, ensuring your website remains secure and trusted by visitors.