Making your Store Domain Name Read as ssl.
Step 1 - log into the manage section of your website then click on Settings and General Settings as shown below.
Step 2 - Click on the below tickbox to ensure that your site is secure.
Step 3 - click on save changes at the top right as shown below.
Step 4 - your site will now redirect to being secure as standard - your customers will see the https:// prefix to their url.