To enable force https redirect on a website do the following:
1- Login to
Plesk Control Panel.
2- Click
Websites & Domains on the left panel.
3- For the website that needs force ssl enabled, select
Hosting Settings.
4- Look under the “
Security” header and check the box that says:
Permanent SEO-safe 301 redirect from HTTP to HTTPS.
5- Click
OK.