wp_resource_hints

What is WordPress Hook: wp_resource_hints

The wp_resource_hints hook is a WordPress function that allows developers to add or remove resource hints in the HTML head of the site. Resource hints are a way to provide browsers with information about resources they will need to fetch, allowing for faster loading times and improved performance.

Understanding the Hook: wp_resource_hints

The wp_resource_hints hook is located within the WordPress process that generates the HTML head of the site. It allows developers to specify resource hints such as preconnect, prefetch, prerender, and preload for specific resources, helping to optimize the loading of the site.

Hook Parameters (if applicable): wp_resource_hints

The wp_resource_hints hook accepts parameters for the resource type and the URL of the resource. Developers can specify the type of resource hint and the URL of the resource to provide the browser with information on what resources to fetch.

Hook Doesn’t Work: wp_resource_hints

If the wp_resource_hints hook doesn’t work, it may be due to incorrect parameter values or conflicts with other plugins or themes. Developers should ensure that the parameters are correctly specified and troubleshoot any conflicts with other code or plugins.

Best Practices & Usage Notes (if applicable): wp_resource_hints

When using the wp_resource_hints hook, it’s important to consider the impact on performance and to only add resource hints for resources that will significantly improve loading times. Overuse of resource hints can lead to unnecessary requests and slow down the site.

Usage Example: wp_resource_hints

“`php
function custom_resource_hints( $urls, $relation_type ) {
if ( ‘dns-prefetch’ === $relation_type ) {
$urls[] = ‘example.com’;
}
return $urls;
}
add_filter( ‘wp_resource_hints’, ‘custom_resource_hints’, 10, 2 );
“`

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