Additional configuration changes
Once you have installed your SSL on your domain/sub-domain, you should be able to access your domain/sub-domain site by using https://domain.com - however you may still need to perform additional configuration changes to your actual website is outlined below.
In order to make sure that all of your pages are properly displayed, and protected by the SSL certificate, some or all of the steps from this article may need to be performed.
Mixed Content Errors
Please, note that you may run into issues and browser errors, if you have insecure content or insecure links within your pages as per the article:
Properly setup your applications
In addition, please double check with your developer, or the vendor of your web applications for any additional changes that need to take place to your site configuration in order for your SSL pages to work correctly. Failure to properly setup your applications may result in website errors, or slowness of your website.
Please, also note that you may need to clear your browser cache, and refresh your browser in order to see the SSL certificate installed, the same applies for any changes you have made to your content since the SSL has been installed (including fixing errors, etc), as per the article below:
WordPress SSL Plugin:
If you are using WordPress you can use a plugin like: Really Simple SSL: https://wordpress.org/plugins/really-simple-ssl/
The plugin will help you use your SSL with your WordPress, and you can even setup automatic redirect of your normal traffic to SSL.
WordPress Insecure Content checker plugin:
In addition you can use the following plugin to scan and fix any insecure content within your WP installation: