There are various reasons that you might want to force a website to use SSL. In general, if you have an SSL cert setup for your website, you should probably force all users to https even if the page doesn’t contain sensitive data. In an ideal world, you would do this on the server side of things. Write some rules with the conf file that will force all traffic over https. If you are in a position where you can’t use the server then it is also easy to force SSL with PHP. It is also very easy to do it with pretty much any programming language, but for this example I will use PHP.

if($_SERVER['SERVER_PORT'] != '443') { header('Location: https://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']); exit(); }

And there you have it. It is that simple. If you are using something like Cloudflare it can get a little tricky sometimes depending on how you have cloudflare configured to handle the SSL. For a standard site, this will be a simple way to force the use of SSL.

It is also worth mentioning that you must have an SSL cert configured on your server in order to make this work. If you do not have a site that supports HTTPS then you cannot make this work.