Dear friends! Thank you very much for your help and your feedback , they all will help us to improve our service, certificate added, feel free to test it and we will be happy for all critics and feedback.
Confirmed.

However, I am getting an error when trying to access the site with "www.". You may want to check that out.
Additionally, you should add a redirect to the standard http:// to automatically forward to https:// whenever someone visits your site. (edit: looks like you've added the redirect; good job)