Before doing anything, you need to make sure that your website actually has an SSL Certificate installed. The easiest way to do this would be to enable AutoSSL in cPanel, or you can purchase and install an SSL Certificate. Then you can configure your website to force visitors to the secure version of your website (https://). If you’re still having problems with the website appearing as insecure in your web browser, then the last thing you may need to check is that the website is loading all resources (images, CSS files, Javascript files, etc.) in a secure way. If you have a WordPress website, you can try the following to resolve this problem: