Detecting a Large Multisite Network in WordPress

If you have ever worked on a very large Multisite network in WordPress, you probably understand the challenges of working with large sets of data. WordPress contains a function to help you detect a large network, wp_is_large_network(). This function accepts a single parameter $using, which sets whether to count users or sites. If your network is either more than 10,000 users or more than 10,000 sites, the function will return true. Let’s look at an example:

if ( wp_is_large_network( 'users' ) ) {

    //this network has over 10,000 users

}elseif ( wp_is_large_network( 'sites' ) ) {

    //this network has over 10,000 sites


This function is extremely handy if you are trying to work with large sets of data. When working with Multisite, and WordPress in general, you should always write code that can scale. You can also easily alter the large network criteria using the wp_is_large_network filter.

WordPress Multisite is an extremely powerful feature of WordPress. Understanding the tools available when working with Multisite will help you build amazing, and stable, WordPress networks.