Hire Multisite Developers

WordPress Multisite is a feature of WordPress core that allows a single WordPress installation to host a network of sites. Each site in the network has its own admin dashboard, its own content, and its own users – but they share a single WordPress codebase, a single set of plugin files, and a modified database structure that separates content between sites using table prefixes.

Multisite can be configured in two modes: subdirectory (each site gets a path like network.com/site-name/) or subdomain (each site gets a subdomain like site-name.network.com). A third option – domain mapping, where each site has a completely different domain – requires additional plugin and server configuration.

Multisite is appropriate for specific use cases: a university running department sites from one installation, an agency managing client sites on shared infrastructure, a SaaS product where each customer gets their own WordPress site, or a media network with multiple publications. For organisations without a clear reason to share infrastructure, separate WordPress installations are simpler to manage. How To Set Up WordPress Multisite.

Multisite development work typically involves:

• Setting up a new WordPress Multisite network – enabling Multisite in wp-config.php, configuring the network admin, and establishing the subdirectory or subdomain structure.
• Configuring domain mapping – assigning custom domains to individual sites in the network using the Mercator plugin or server-level configuration.
• Network-wide plugin and theme management – understanding how plugins and themes are activated at the network level versus the individual site level.
• Migrating existing standalone WordPress sites into a Multisite network, or extracting individual sites from a Multisite network into standalone installations.
• Building network-aware plugins – custom functionality that reads data from or writes data to multiple sites in the network using the switch_to_blog() API.
• Troubleshooting Multisite-specific issues – user permission problems, domain mapping failures, or plugin conflicts that only manifest in a Multisite environment.

WordPress Multisite has behaviours and limitations that differ significantly from a standard WordPress installation. Look for developers who have specifically set up and maintained Multisite networks – experience with standard WordPress does not automatically transfer to Multisite troubleshooting and configuration.

For plugin and theme compatibility, ask whether the developer tests for Multisite compatibility specifically. Many plugins work correctly on standard WordPress but behave incorrectly in Multisite – particularly plugins that make assumptions about database table names, file paths, or user roles that Multisite structures differently.

For domain mapping projects, confirm the developer has configured domain mapping with the specific hosting environment being used. Domain mapping requires both WordPress-level configuration and server-level configuration (DNS, SSL for each domain), and the correct approach varies between hosting providers.

Common WordPress Multisite problems: How To Back Up WordPress Manually Plugin.

• New site not accessible after creation – the server is not configured for wildcard subdomains (for subdomain setups), or the web server rewrite rules are not set up for Multisite. Check the server’s Apache or nginx configuration for Multisite rewrite rules.
• Plugin causing fatal error on specific network sites but not others – the plugin is not Multisite compatible, or it is conflicting with site-specific settings. Test with the plugin deactivated on the affected site.
• Users unable to access the correct sites in the network – user roles in Multisite are site-specific. A user who is an admin on one site is not automatically an admin on other sites. Assign the correct roles on each site or use a Multisite user management plugin.
• Domain mapping not working – the DNS is not pointing to the correct server, the SSL certificate does not cover the mapped domain, or the Multisite domain mapping configuration is incorrect. Check each step in sequence.
• Uploads from one site appearing in another site’s media library – Multisite stores uploads in separate directories per site (wp-content/uploads/sites/N/). Cross-site upload sharing is not the default behaviour and would require custom configuration.

Multisite maintenance is more complex than maintaining a single WordPress installation because changes to plugins, themes, and core affect all sites in the network simultaneously. A plugin update that breaks functionality affects every site using that plugin. Testing updates on a staging network before applying to production is important.

Database maintenance on a Multisite network is more involved – each site has its own set of database tables (wp_2_posts, wp_3_posts, etc.), and the database grows with every new site added. Cleanup operations need to target the correct site’s tables.

SSL certificate management is more complex on Multisite networks with domain mapping – each mapped domain needs its own SSL certificate, and certificate renewals need to be managed for every domain in the network.

When posting a Multisite project on Codeable, describe the network structure – how many sites, subdirectory or subdomain setup, whether domain mapping is needed, and the hosting environment. Also describe what the sites share (theme, plugins) and what is different between sites (content, users, settings).

For migration projects (moving sites into or out of a Multisite network), describe the current state and the target state. Moving sites between Multisite and standalone installations involves database table manipulation and is a project that requires careful execution with solid backups.