Feature: The “Pixel to Load Resources Below the Viewport” setting in W3Speedster determines how far below the visible viewport deferred resources begin loading. The default threshold is 200 pixels, which ensures images, videos, iframes, background images, and audio start loading just before they enter view, resulting in a smooth and uninterrupted user experience. Why This […]
Doc Category: Joomla
Enable Lazy Load
Feature: The Enable Lazy Load feature in W3Speedster defers the loading of images and other non-critical media elements until they are about to enter the user’s viewport. Instead of loading all visual assets (Images, Audio, Video, and Iframe) at once, this approach prioritizes above-the-fold content, leading to significantly faster initial page rendering and optimized server […]
WebP Image Quality
Feature: The WebP Image Quality setting in W3Speedster determines the compression level applied when converting JPG and PNG images into the WebP format. As a next-generation image format developed by Google, WebP provides significant file size reduction while maintaining strong visual quality. W3Speedster defaults this value to 90%, offering a near-lossless balance between clarity and […]
Convert to WebP
Feature: The “Convert to WebP” feature in W3Speedster allows automatic conversion of JPG and PNG images into the WebP format — a modern, high-efficiency image format developed by Google. WebP delivers significant compression advantages while maintaining visual quality, resulting in faster page loads and lower bandwidth consumption without compromising user experience. Why We Need It […]
JPG/PNG Image Quality
Feature: The “JPG/PNG Image Quality” setting in W3Speedster allows you to fine-tune the balance between image visual clarity and file size. By default, the plugin maintains a high-quality threshold of 90%, ensuring that your site’s images remain sharp and visually appealing while still achieving meaningful reductions in file size. Why We Need It Performance vs. […]
Optimize JPG/PNG Images
Feature: Image optimization is an essential element of web performance, as images often contribute significantly to a page’s total load size. W3Speedster includes an automatic image optimization feature specifically designed for JPG and PNG formats, the most commonly used image types on the web. This feature reduces image file sizes without compromising visual quality, leading […]
Image Optimization
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Delete Critical CSS
Feature: The “Delete Critical CSS” option in W3Speedster enables developers and administrators to manually clear all previously generated Critical CSS. Critical CSS contains the essential above-the-fold styles that are rendered immediately during page load to improve perceived performance. Clearing this cache ensures that any recent styling modifications are accurately reflected in the initial page render. […]
Delete HTML/JS/CSS Cache
Feature: The “Delete HTML/JS/CSS Cache” feature in W3Speedster enables you to clear all cached HTML, JavaScript and CSS files that have been previously minified and combined for performance optimization. While asset caching accelerates page loads by reducing file size and request counts, it may cause issues when scripts or stylesheets are updated. This function ensures […]
Delete HTML Cache
Feature: The “Delete HTML Cache” feature in W3Speedster allows administrators and developers to manually clear the static HTML versions of cached pages. HTML caching significantly improves performance by serving pre-rendered pages, but when your site content or layout changes, the cached files can become outdated. This feature ensures that updates are reflected immediately on the […]
