Article ID: 9288, created on Nov 11, 2010, last review on Aug 12, 2014

  • Applies to:
  • Plesk 10.x for Linux


When I open a domain via http://WWW.DOMAIN.TLD, the default page of Parallels Plesk Panel is shown. I do not see options in Parallels Plesk Panel to enable the WWW prefix on the domain.

How do I make my domain work with a WWW prefix?

Additional information

A domain works with WWW prefixes if an entry ServerAlias exists in the Apache configuration file of the domain. Here is an example of a valid Apache configuration of the domain DOMAIN.TLD with an enabled WWW prefix:

    ServerName "DOMAIN.TLD:80"
    ServerAlias  "www.DOMAIN.TLD"

If the record ServerAlias "www.DOMAIN.TLD" is missing, the WWW prefix does not work for the domain.


Starting from version 10.0.0, the "www" prefix is managed automatically by Parallels Plesk Panel. It evaluates the presence of the CNAME record www.DOMAIN.TLD in the DNS zone of the domain and adds the ServerAlias "www.<DOMAIN.TLD>" record to the webserver configuration.

Starting from version 10.3.1, the ServerAlias "www.<DOMAIN.TLD>" record is added to the webserver configuration for each domain without depending on its DNS zone content. It is recommended that you update your installation to version 10.3.1 if you have difficulties in enabling the "www" prefix for a domain.

Additional information

WWW prefix does not work for the domain after upgrading Parallels Plesk Panel to version 10.0

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