SSL Security Error: How to Fix It

SSL (Secure Sockets Layer) is used to encrypt communication between a website and its users. However, sometimes users encounter SSL security errors when visiting a website. These errors can be caused by various factors, including expired certificates, misconfigurations, or outdated browsers.

In this article, we’ll explore common SSL security errors and how to fix them.

Common SSL Errors

1. NET::ERR_CERT_COMMON_NAME_INVALID: This error occurs when the certificate’s domain name does not match the domain name in the browser’s address bar.
2. SSL Certificate Expired: This error happens when the SSL certificate has expired and needs to be renewed.
3. Mixed Content Error: This occurs when a website is using HTTPS, but some resources (images, scripts) are being loaded over HTTP.
4. Browser Outdated: Sometimes, an outdated browser may not recognize a website’s SSL certificate, resulting in an error.

How to Fix SSL Errors as a User

1. Clear Browser Cache

Sometimes SSL errors occur due to old data being cached in your browser. Clear the cache to resolve this issue:

1. Open your browser’s settings.
2. Navigate to Privacy and Security.
3. Clear the Cache and Cookies.

2. Check System Date and Time

SSL certificates rely on the system’s date and time to verify validity. If your system’s date and time are incorrect, it can cause SSL errors. Make sure your device is set to the correct date and time.

3. Update Your Browser

Outdated browsers may not support newer SSL certificates. Ensure that your browser is up-to-date by checking for updates and installing the latest version.

How to Fix SSL Errors as a Website Owner

1. Renew the SSL Certificate

If your SSL certificate has expired, you need to renew it with your Certificate Authority (CA). Most hosting providers offer free SSL certificates via Let’s Encrypt. To renew, use the following command:

2. Fix Mixed Content

Ensure that all resources (images, scripts, etc.) are loaded over HTTPS. Update any HTTP links to HTTPS in your website’s code to avoid mixed content warnings.

3. Verify Domain Name

If you encounter a NET::ERR_CERT_COMMON_NAME_INVALID error, check that the SSL certificate’s Common Name or Subject Alternative Names (SANs) match the domain name you’re trying to secure.

Conclusion

SSL security errors can be frustrating for users and website owners alike. By following the troubleshooting steps outlined in this guide, you can resolve common SSL errors, ensuring secure and seamless communication between your website and its users.