WordPress.org

<p>This plugin adds support for the <a href="https://developer.mozilla.org/en-US/docs/Web/API/Speculation_Rules_API" rel="nofollow ugc">Speculation Rules API</a>, which allows defining rules by which certain URLs are dynamically prefetched or prerendered. This core Speculative Loading functionality was <a href="https://make.wordpress.org/core/2025/03/06/speculative-loading-in-6-8/" rel="nofollow ugc">merged into WordPress 6.8</a>, but it only prefetches with conservative eagerness by default. In contrast, this plugin defaults to prerendering with moderate eagerness (i.e. when interacting with a link), and it provides a user interface to customize the mode and eagerness via the “Speculative Loading” section on the <em>Settings > Reading</em> admin screen.</p>
<p>By default, speculative loading is only enabled for logged-out users, since unauthenticated pages are typically only eligible for caching and so more efficient to prefetch/prerender. This means that sites with frequent logged-in users on the frontend—such as e-commerce, forums, or membership sites—will not benefit from the feature. If your server can handle the additional load (for example, with persistent object caching), you can opt in to enable speculative loading for all logged-in users or for administrators only. This setting exclusively affects frontend pages; admin screens are always excluded.</p>
<p>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 <code>no-prerender</code> CSS class to any link (<code><a></code> tag) that should not be prerendered. See FAQ for more information.</p>
<h4>Browser support</h4>
<p>The Speculation Rules API is a new web API, and the functionality used by the plugin is supported in Chromium-based browsers such as Chrome, Edge, or Opera using version 121 or above. Other browsers such as Safari and Firefox will ignore the functionality with no ill effects; they will simply not benefit from the speculative loading. Note that certain browser extensions may disable preloading by default.</p>
<ul>
<li><a href="https://caniuse.com/mdn-html_elements_script_type_speculationrules" rel="nofollow ugc">Browser support for the Speculation Rules API in general</a></li>
<li><a href="https://developer.chrome.com/docs/web-platform/prerender-pages" rel="nofollow ugc">Information on document rules syntax support used by the plugin</a></li>
</ul>
<p><em>This plugin was formerly known as Speculation Rules.</em></p>


Speculative Loading

Nice


Amazing results on install. Will continue to check this one out. 


Interesting and Impressive

Does what it needs to do.

Enables browsers to speculatively prerender or prefetch pages to achieve near-instant loads based on user interaction.

Aminul Islam

<p>PageFlash is a powerful WordPress plugin that preloads pages intelligently to boost site speed and enhance user experience. By loading pages before users click, PageFlash ensures instant page transitions, creating a seamless and lightning-fast browsing experience for your visitors.</p>
<h3>Key Features:</h3>
<h4>Preloading:</h4>
<ul>
<li><strong>Quicklink:</strong> Experience a 50% increase in conversions and enjoy 4x faster page loading. Boost your website speed and increase user engagement.</li>
<li><strong>InstantPage:</strong> Uses just-in-time preloading — preloads a page right before a user clicks on it.</li>
</ul>
<h4>Performance Optimization:</h4>
<ul>
<li><strong>Disable Dashicons:</strong> Remove Dashicons on the frontend for non-logged-in users to improve performance.</li>
<li><strong>Disable Embeds:</strong> Disable the WordPress oEmbed feature to reduce unnecessary HTTP requests and improve page load times.</li>
<li><strong>Disable Emojis:</strong> Remove built-in WordPress emoji scripts and styles to reduce page size and improve load times.</li>
<li><strong>Disable Heartbeat:</strong> Control WordPress Heartbeat API everywhere or in certain areas (used for auto-saving and revision tracking) with customizable behavior and frequency settings.</li>
<li><strong>Remove jQuery Migrate:</strong> Remove jQuery Migrate script to improve performance on the frontend.</li>
</ul>
<h4>Security Enhancements:</h4>
<ul>
<li><strong>Disable REST API:</strong> Disable the WordPress REST API for non-authenticated users to enhance security and reduce unnecessary requests.</li>
<li><strong>Remove REST API Link:</strong> Remove REST API link tag from the front end and the REST API header link from page requests.</li>
<li><strong>Hide WordPress Version:</strong> Hide the WordPress version number from the site header, meta tags, and RSS feeds to improve security.</li>
<li><strong>Disable XML-RPC:</strong> Disable the XML-RPC feature to enhance security and reduce unnecessary requests.</li>
</ul>
<p>For more information and documentation, visit our <a href="https://theaminul.com/pageflash/docs" rel="nofollow ugc">plugin documentation</a>.</p>
<h3>How it works:</h3>
<ul>
<li><strong>Detects links within the viewport</strong> (using <a href="https://developer.mozilla.org/en-US/docs/Web/API/Intersection_Observer_API" rel="nofollow ugc">Intersection Observer</a>)</li>
<li><strong>Waits until the browser is idle</strong> (using <a href="https://developer.mozilla.org/en-US/docs/Web/API/Window/requestIdleCallback" rel="nofollow ugc">requestIdleCallback</a>)</li>
<li><strong>Checks if the user isn’t on a slow connection</strong> (using <code>navigator.connection.effectiveType</code>) or has data-saver enabled (using <code>navigator.connection.saveData</code>)</li>
<li><strong>Prefetches URLs to the links</strong> (using <a href="https://www.w3.org/TR/resource-hints/#prefetch" rel="nofollow ugc"><code><link rel=prefetch></code></a> or XHR). Provides some control over the request priority (can switch to <code>fetch()</code> if supported).</li>
</ul>
<p>If you are a developer, we encourage you to follow along or <a href="https://github.com/theaminuldev/pageflash" rel="nofollow ugc">contribute</a> to the development of this plugin <a href="https://github.com/theaminuldev/pageflash" rel="nofollow ugc">on GitHub</a>.</p>
<h3>Browser support:</h3>
<p>This plugin also works perfectly on popular browsers.<br />
– 🖥 Microsoft EDGE<br />
– 🖥 Firefox 4+<br />
– 🖥 Chrome<br />
– 🖥 Opera<br />
– 📱 Android 4+</p>


PageFlash – Fast Page Preloading, Performance Optimization & Secure Your WordPress Site

Preload pages intelligently to boost site speed and enhance user experience by loading pages before users click, ensuring instant page transitions.

Speculative Loading vs PageFlash – Fast Page Preloading, Performance Optimization & Secure Your WordPress Site