- Plesk 12.5 for Windows
Preview URL like '/plesk-site-preview' for domain example.com is getting indexed in Google search engine.
Bug #PPPM-4134 . It is fixed in Plesk Onyx.
Upgrade to the latest Plesk version .
If upgrade is not possible, perform the following:
Add HTTP response header in IIS Manager > Server > Sites > sitepreview > HTTP response headers: