Configure Domain Mapping in WordPress Multisite

Here, we cover the steps to configure domain mapping on a WP Multisite. In WordPress Multisite, you can connect subsites to different domain names.

For example, a site like subsite.multisite.com can be shown as domain.com. This works for subdirectory sites too, making multisite.com/subsite look like domain.com.

Related Articles

WordPress Multisite Overview
Add Site to WordPress Multisite
Manually Install WordPress Multisite

Configure

1. Ensure the domain to be used is pointed to the server
2. Ensure the domain is added as an addon domain on the cPanel using the same document root as the multisite
   EXAMPLE: If we wanted the subdirectory multisite.com/subsite of the multisite to load from domain.com, we'd add domain.com to the cPanel with the same document root as multisite.com.
3. Ensure the SSL on the domain is up-to-date
   TIP: SSL Shopper or Why No Padlock? are easy ways to check the SSL information.
   1. To use a free AutoSSL certificate, run AutoSSL
4. Log into the WordPress dashboard as the super admin
   TIP: If the site was installed using Softaculous, you can typically log in automatically with Softaculous.  If not, you can also import the site to Softaculous.
5. Navigate to My Sites>Network Admin>Sites
   
6. Click on Edit under the applicable site
   
7. Update the Site Addressto the desired domain
   
   NOTE: You must include the protocol, either http:// or https://.
8. Click Save Changes
9. Edit the wp-config.php file located in the document root
10. Add the following before the line to ensure cookies are set to the correct domain
    

    define('COOKIE_DOMAIN', $_SERVER['HTTP_HOST']);

    NOTE: This should be placed before the /* That's all, stop editing!...*/line