Get Main Site URL in WordPress Multisite Network

August 19, 2016

The code below can be used to get the URL of the main site in the WordPress Multisite Network:

* Get the home URL of the main site in a multisite network.
* @return string The home URL of the main site.
function km_get_main_site_url() {
// This is the current network's information; 'site' is old terminology.
global $current_site;
if ( is_multisite() && $current_site ) {
$main_site_blog_id = $current_site->blog_id;
return get_home_url( $main_site_blog_id );
return home_url();

Kellen Mace

Written by Kellen Mace, who lives in Rochester Hills, MI and builds cool stuff on the web. About Kellen // Follow him on Twitter →