Speculative Loading


This plugin adds support for the Speculation Rules API, which allows defining rules by which certain URLs are dynamically prefetched or prerendered based on user interaction.

See the Speculation Rules WICG specification draft.

By default, the plugin is configured to prerender WordPress frontend URLs when the user hovers over a relevant link. This can be customized via the “Speculative Loading” section under Settings > Reading.

A filter can be used to exclude certain URL paths from being eligible for prefetching and prerendering (see FAQ section). Alternatively, you can add the ‘no-prerender’ CSS class to any link (<a> tag) that should not be prerendered.

Browser support

The Speculation Rules API is a new web API, and the specific syntax used by the plugin currently requires using Chrome 121+.

Other browsers will not see any adverse effects, however the feature will not work for those clients.

This plugin was formerly known as Speculation Rules.


Installation from within WordPress

  1. Visit Plugins > Add New.
  2. Search for Speculative Loading.
  3. Install and activate the Speculative Loading plugin.

Manual installation

  1. Upload the entire speculation-rules folder to the /wp-content/plugins/ directory.
  2. Visit Plugins.
  3. Activate the Speculative Loading plugin.

એફએક્યુ (FAQ)

How can I prevent certain URLs from being prefetched and prerendered?

Not every URL can be reasonably prerendered. Prerendering static content is typically reliable, however prerendering interactive content, such as a logout URL, can lead to issues. For this reason, certain WordPress core URLs such as /wp-login.php and /wp-admin/* are excluded from prefetching and prerendering. You can exclude additional URL patterns by using the plsr_speculation_rules_href_exclude_paths filter.

This example would ensure that URLs like https://example.com/cart/ or https://example.com/cart/foo would be excluded from prefetching and prerendering.


    function ( array $exclude_paths ): array {
        $exclude_paths[] = '/cart/*';
        return $exclude_paths;

Keep in mind that sometimes it may be useful to exclude a URL from prerendering while still allowing it to be prefetched. For example, a page with client-side JavaScript to update user state should probably not be prerendered, but it would be reasonable to prefetch.

For this purpose, the plsr_speculation_rules_href_exclude_paths filter receives the current mode (either “prefetch” or “prerender”) to provide conditional exclusions.

The following example would ensure that URLs like https://example.com/products/... cannot be prerendered, while still allowing them to be prefetched.


    function ( array $exclude_paths, string $mode ): array {
        if ( 'prerender' === $mode ) {
            $exclude_paths[] = '/products/*';
        return $exclude_paths;

Where can I submit my plugin feedback?

Feedback is encouraged and much appreciated, especially since this plugin may contain future WordPress core features. If you have suggestions or requests for new features, you can submit them as an issue in the WordPress Performance Team’s GitHub repository. If you need help with troubleshooting or have a question about the plugin, please create a new topic on our support forum.

Where can I report security bugs?

The Performance team and WordPress community take security bugs seriously. We appreciate your efforts to responsibly disclose your findings, and will make every effort to acknowledge your contributions.

To report a security issue, please visit the WordPress HackerOne program.

How can I contribute to the plugin?

Contributions are always welcome! Learn more about how to get involved in the Core Performance Team Handbook.


એપ્રિલ 12, 2024
Thank you! My website has woocommerce and interactive blocks, and with this plugin it seems faster.
એપ્રિલ 11, 2024
Works well!
3 સમીક્ષાઓ વાંચો

ફાળો આપનાર & ડેવલપર્સ

આ ઓપન સોર્સ સોફ્ટવેર છે. નીચેના લોકો એ આ પ્લગિન માટે ફાળો આપ્યો છે.

ફાળો આપનારા

“Speculative Loading” નું 2 ભાષામાં અનુવાદ કરવામાં આવ્યું છે. Thank you to the translators for their contributions.

“Speculative Loading” ને તમારી ભાષામાં અનુવાદ કરો.

વિકાસમાં રસ ધરાવો છો?

કોડ બ્રાઉઝ કરો, એસવીએન રીપોઝીટરીમાંથી ચેકઆઉટ કરો, અથવા આરએસએસ દ્વારા ડેવલપમેન્ટ લોગમાં સબ્સ્ક્રાઇબ કરો.



  • Allow excluding URL patterns from prerendering or prefetching specifically. (1025)
  • Rename plugin to “Speculative Loading”. (1101)
  • Add Speculative Loading generator tag. (1102)
  • Bump minimum required WP version to 6.4. (1062)
  • Update tested WordPress version to 6.5. (1027)


  • Escape path prefix and restrict it to be a pathname in Speculation Rules. (951)
  • Force HTML5 script theme support when printing JSON script. (952)
  • Add icon and banner assets for plugin directory. (987)


  • Initial release of the Speculative Loading plugin as a standalone plugin. (733)