Step 1 Bind the certificate .

Open bindings options in default web sites. As shown in the below screenshot .

Step 2 : After opening the bindings , Click on add/edit option to add the domains for the SSL .

Add new rule .

Or Edit the existing rule . 

Step 3 : Choose Type , IP , port and SSL certificate and then click on OK 

SSL has been successfully installed on the domain , Please verify through URL .