Offer sites with unlimited and different domain options from a single Multisite installation.


  • Amended: sunrise inclusion


September 9, 2014 - version
  • Amended: sunrise inclusion

September 9, 2014 - version
  • Changed how sunrise is maintained

April 4, 2014 - version
  • Deprecated multi_domain::restore_current_site()
  • Fixed bug with outgoing emails on new site creation

April 4, 2014 - version 1.3.4
  • Added sso for logging to main domain from secondary domains

April 4, 2014 - version 1.3.3
  • Added Multidomains_Sso
  • Fixed cross domain single signon issue
  • Fixed cross blog single signon issue

January 1, 2014 - version 1.3.2
  • Fixed site creation issue which appears when create a site via admin dashboard.

November 11, 2013 - version 1.3.1
  • Reworked network admin domains page
  • Improved performance for case when a lot domains are added
  • Fixed minor issues
  • Fixed sunrise.php compatibility issue
  • Integrated new WPMUDEV dashboard notifications class

October 10, 2013 - version 1.3
  • Reworked the multi-domains plugin to work from plugins directory
  • Implemented functionality to auto copy/upgrade sunrise.php file

July 7, 2013 - version 1.2.3

    May 5, 2013 - version 1.2.2
    • Updating sunrise.
    • Forcing empty values existence.

    November 11, 2012 - version 1.2.1
    • Placement script scoping.
    • Blog selection issue fix.

    August 8, 2012 - version 1.2
    • Domains site search.
    • Stuck transients issue fix.
    • BuddyPress cross-domain login issue fix.

    January 1, 2012 - version 1.1.6

      October 10, 2011 - version 1.1.5

        May 5, 2011 - version 1.1.4

          January 1, 2011 - version 1.1.3
          • Enhancement: performance improvements
          • Bug fix: incorrect domain used on site creation in network admin

          January 1, 2011 - version 1.1.2

            January 1, 2011 - version 1.1.1
            • Enhancement: 3.1+ compatibility
            • Enhancement: Allow disabling cross domain login with a constant

            December 12, 2010 - version 1.1
            • Enhancement: More extensible code with new hooks and structure
            • Bug fix: Allow www in mapped domain name

            November 11, 2010 - version 1.0.9

              November 11, 2010 - version 1.0.8

                October 10, 2010 - version 1.0.7

                  October 10, 2010 - version 1.0.6

                    October 10, 2010 - version 1.0.5

                      October 10, 2010 - version 1.0.4

                        September 9, 2010 - version 1.0.3

                          September 9, 2010 - version 1.0.2

                            September 9, 2010 - version 1.0.1

                              September 9, 2010 - version 1

                                Downloads 25,570

                                Compatibility Multisite 4.1 BuddyPress 2.2

                                "WPMU DEV has created plugins that have transformed my business"

                                Andrew Shanahan

                                multi-domains allows you to run an unlimited number of different domains from one WordPress Multisite installation.

                                Easily create blogs at alternative domains to your main site or give your users the option to choose the domain they prefer.

                                Add value to your Multisite network

                                Quickly and easily provide multiple network URLs on just one WordPress install.

                                Just install and activate Multi-Domains and enter as many domains as you like. They will automatically be added to your signup and new blog creation forms.

                                Users logged into one domain will also be automatically signed on to other domains in your network.

                                You choose whether to make your domains:
                                • Public – to be used by any user, or
                                • Private – to be used by super admins

                                Add and removing domains is simple.

                                Combine with other WPMU DEV products

                                Integrate Multi-Domains with Domain Mapping by WPMU DEV for even more control over your URLs. The plugin combination will also allow you to map individual blog set up on different domains to their own dedicated URLs.

                                Multi-Domains Settings
                                Easily add new domains to your network and give users the flexibility of address options

                                Give users on your network a choice. Make more domains available with Multi-Domains.

                                Please note: Multi-Domains is for sub domain installations only and will not work well for subdirectory installations.

                                Other important notes:

                                • As of Multi-Domains version 1.3, it is no longer necessary to manually install the plugin in the mu-plugins folder. Woot! If you have an older version in that folder now, please remove it.
                                • It is also no longer necessary to manually update the sunrise.php file as that is now done automatically. :)
                                • Finally, if you are also using our Domain Mapping plugin, be sure that it is at least version 4.0.3.

                                To Get Started

                                Start by reading Installing plugins section in our comprehensive WordPress and WordPress Multisite Manual if you are new to WordPress.

                                Once installed and network-activated, you will see a new menu item in the Network Settings menu.

                                Multi-Domains Menu

                                Configuring the Settings

                                The first thing you need to do is add a constant to your wp-config.php file.

                                Please copy the sunrise.php from the plugin folder /FOLDER-PATH/wp-content/plugins/multi-domains/sunrise.php into /FOLDER-PATH/wp-content/sunrise.php

                                Then open your wp-config.php file (normally located in the root of your install) and please uncomment or add (if not available) the following code just before the line that says “That’s all, stop editing!”:

                                define( 'SUNRISE', 'on' );


                                Please ensure that you type this and not just copy and paste. Take care to use single quotes and not back-ticks.

                                Save and re-upload that file.

                                Now head over to the Multi-Domains page in your Network Admin area at Settings > Multi-Domains

                                Multi-Domains Settings

                                There, you can add all the domain names you want to include in the selection for new sites in your network.

                                Simply enter the name, select Public or Private, and click Add Domain. Done.

                                Note that domains set to Private will be available to the network admins only. Domains set to Public will be displayed on your user and blog registration pages.

                                Bonus! If you have the New Blog Templates plugin installed, you can also select which template to use for each domain. Cool huh?

                                The final step is domain name configuration in your hosting to make sure the blogs created work.

                                Domain Configuration

                                In the DNS records for each domain added, add a wildcard subdomain that points to the IP of your WordPress multisite.

                                You simply need to add an “A” Record by entering an asterisk for the name, and the IP of your multisite for the address.

                                For example, here’s a domain configured with a wildcard subdomain through cPanel:


                                Deleting Previously Added Domains:

                                Hover your mouse pointer over the domain name in the list and click the Delete link which appears.

                                Multi-Domains Delete

                                If you want to do a batch delete of several domains, check the boxes next to the domains names and click the Delete button .

                                Changing a domain status:

                                You may want to change the status (public or private) of a domain name.

                                1. Hover the domain name in the list and click the Edit link which appears.

                                2. Select a new status.
                                – Choose Public if you want it to be available to all the users who register on your blog.
                                – Choose Private if you want it to be used by Super Admins only.

                                3. Click Save Domain.

                                Creating Sites in the Admin

                                Now when you go to Sites > Add New in your network admin, you’ll see a new option to select which domain you want to add the new site to.

                                Multi-Domains Add Site

                                User Experience

                                Users who wish to create a blog in your network can now select from the domains you have made available to them when they sign up.

                                Multi-Domains Signup

                                Potential Issues

                                Many times you may run into trouble where mapped domains don’t resolve to your WordPress Multi-site install even though the DNS is correct for the domain you are trying to map.

                                This is especially common with shared hosting. Some symptoms are getting a default or non-existent domain screen branded by your host. What this means is that your WordPress install/virtualhost is not set as the default for your IP address, so different domains do not load it up.

                                Here is a very simple way to check if your hosting is configured correctly: Simply enter your server’s IP address into a web browser and see if it loads up your WordPress signup page. For example, using the Edublogs IP you would enter into the web browser. See how it loads up the signup page? If entering your IP pulls up an error screen from your host (Example: here is what you can do:

                                1. Purchase a dedicated IP address for your hosting.

                                2. Many times just the dedicated IP will do the trick. If not, you will need to ask your host to configure your WPMU virtualhost to be the default for your dedicated IP.

                                3. If you have addon domains in your hosting account, this may cause additional issues. To resolve this, you could add the domain you want to offer as a parked domain. Then create a wildcard A record in your DNS zone editor and point it to your dedicated IP as shown above.

                                • Note that any DNS edits may take up to 48 hours to propagate.

                                Of course, if you ever get stuck, just drop by the forums or live support for assistance!