When trying to open a website in a browser, the following error is shown:


Sometimes error starts occurring after enabling Google PageSpeed.

Redirect checkers like shows that is redirecting to and back again.

Preferred domain value is set to or at Plesk > Domains > > Hosting Settings.

Redundant redirects which lead to infinite redirect loop.

Such issue can occur if redirect is already configured in .htaccess file, in Apache &Nginx Settings or in web application (e.g. WordPress, Joomla) settings.

To fix the issue it is required to disable redirects in Plesk:

Log in to Plesk.

Navigate to Domains > > Hosting Settings.

Change Preferred domain value to None and click OK:

Remove redirect rules under Domains > > Apache & Nginx Settings, if any.

Remove redirect rules in the .htaccess file like the following:

Redirect 301 /index.html
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