# Mapped Domain Column in the Network Sites List

> Shows each site's public address next to its network address in Network Admin > Sites and flags sites whose Home and Site URLs do not match, a common domain-mapping mistake.

- Type: PHP
- Runs: Admin only
- Category: [Multisite](https://wpide.com/library/category/multisite/)
- Tags: domain-mapping, network-admin, columns
- Author: WPIDE Team
- Installs: 0
- Updated: 2026-10-28
- Page: https://wpide.com/library/ms-mapped-domain-column/

## Code

```php
if ( ! is_multisite() ) {
    return;
}

add_filter( 'wpmu_blogs_columns', function ( $columns ) {
    $columns['wpide_domain'] = __( 'Public address' );

    return $columns;
} );

add_action( 'manage_sites_custom_column', function ( $column, $blog_id ) {
    if ( 'wpide_domain' !== $column ) {
        return;
    }

    $home    = untrailingslashit( (string) get_blog_option( $blog_id, 'home' ) );
    $siteurl = untrailingslashit( (string) get_blog_option( $blog_id, 'siteurl' ) );

    printf( '<a href="%1$s">%2$s</a>', esc_url( $home ), esc_html( wp_parse_url( $home, PHP_URL_HOST ) . wp_parse_url( $home, PHP_URL_PATH ) ) );

    if ( wp_parse_url( $home, PHP_URL_HOST ) !== wp_parse_url( $siteurl, PHP_URL_HOST ) ) {
        echo '<br><span style="color:#b32d2e">' . esc_html( sprintf( 'Site URL differs: %s', $siteurl ) ) . '</span>';
    }
}, 10, 2 );
```

## Notes

Fix mismatches in Network Admin > Sites > Edit > Settings (home and siteurl).

## How to use it

Install the free WPIDE plugin (https://wordpress.org/plugins/wpide/), find "Mapped Domain Column in the Network Sites List" in its snippet library and add it in one click; or create a new PHP snippet in WPIDE (or any code snippets plugin) and paste the code above. More snippets: https://wpide.com/library/