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Prerender Links on Hover

Upgrades WordPress speculative loading (6.8+) from prefetch to prerender with moderate eagerness, so pages open almost instantly after a hover.

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Code

add_filter( 'wp_speculation_rules_configuration', function ( $config ) {
    if ( is_array( $config ) ) {
        $config['mode']      = 'prerender';
        $config['eagerness'] = 'moderate';
    }

    return $config;
} );

Notes

Prerendering runs page scripts early; analytics tools that are not prerender-aware may count extra page views.

How to add this snippet

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  2. Use snippet above adds it from the library in one click. Or copy the code into a new snippet with the same code type.
  3. It is added inactive: review the code and settings, then switch it on.

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