By default WordPress is not configured to use SSL certificate no matter the fact that your domain might be using such. The configuration however is quite an easy and straight process which if you follow this tutorial you will be able to handle on your own.
In this tutorial we will mostly discuss how to configure the plugin required for the SSL certificate. You will need to know of course how to install a plugin in your WordPress, however if you are not convinced that you are fully aware how this process should be handled please refer to another article from our WordPress series related to the management of your plugins.
First we will begin with installing the plugin for the SSL activation and configuration of your website. This can be quite easily achieved if you login into your WordPress admin area and navigate to Plugins->Add new.
Then you will need to type the name of the plugin in the search box:
“Really Simple SSL”
In order to install the plugin you will need to click on the “Install Now” button.
Once the plugin is installed and activated it will automatically enable SSL for your website if a SSL certificate is alredy installed on your domain. To further configure the plugin's settings, you can either use the link from the plugins manager or navigate to Settings->SSL from the side panel of your admin area.
On the newly opened settings page, you will see three tabs. The first one is the Configuration tab and in it you will be able to see the setup of your connection. If you did not have an SSL Certificate for your website you will see a warning message here suggesting to fix the issue.
Do not worry about the HTTP Strict Transport Security option. This is just another security rule that protects against protocol downgrade attacks. If you absolutely want to add the rule, you can either buy a premium license for the plugin or try using the following code snippet in your .htaccess file:
Header set Strict-Transport-Security "max-age=31536000" env=HTTPS
The next tab represents the settings you can change:
Once you are ready configuring these settings please click the “Save” button.