Some hosting systems require the Private key to be in RSA format rather than PEM. You can easily convert these files using OpenSSL.
Running PHP via the FastCGI module on Windows servers means that PHP is executed extremely quickly.
How to enable HTTP Strict Transport Security via PHP
Once you have installed your SSL certificate on your website you need to look at how you are going to ensure visitors use HTTPS on the correct pages.
To enable HTTP Strict Transport Security for Apache you can edit the vhosts file.
Details to force users to connect using only 128-bit or 256-bit. Advanced users only!
How to enable HTTP Strict Transport Security for IIS using .NET.
How to enable HTTP Strict Transport Security in lighttpd.
For some installations it is not possible to verify the certificate installation using external scanners. Instead you can use OpenSSL commands to return all the certificates present on your domain and verify installation.
How to enable HTTP Strict Transport Security in nginx.