HTTPS protocol is a standard security technology used to establish an encrypted link between a web server and a web client.
The use of HTTPS ensures that names, password and other sensitive data cannot be deciphered.
For Windows server, user may enable the HTTPS from the MSPControl panel.
You may refer below guideline to activate the SSL.
1. Login to your MSP control panel
2. Navigate to 'Web & Application' and click on Web Sites.
3. Then, click on the domain name that you would like to activate the SSL.
4. Click on SSL tab.
5. Then, click on 'Install free certificate from Let's Encrypt' button to activate the SSL.