To change your Website Status to Disabled, perform the following steps:
1 - Logged in to Plesk, https://your domain name:8443.
2 - Go to Websites & Domains.
3 - Click Hosting Settings below the site's name at Websites & Domains.
4 - In Website status click [Change].
5 - Select Disabled (formely known as Suspended).
Visitors will see the web server's default page set by the hosting provider, and the site's search engine rankings will drop.