ergonet

<p>Ergonet Cache for WordPress is a free plugin developed by Ergonet srl, an Italian hosting company, to drastically improve the performance of a WordPress website by using a server-side page caching system (NGINX Cache or Varnish Cache).</p>
<h3>BENEFITS</h3>
<p>Using a server-side caching system increases your WordPress site’s performance by a minimum of 30% and up to 70%. Keep in mind that the actual improvement will also depend on your overall website optimization strategy.</p>
<h3>WHAT IS PAGE CACHE AND HOW DOES IT WORK?</h3>
<p>Page cache speeds up your website by storing the entire HTML of web pages directly on the web server, instantly serving them to visitors without needing to query the PHP server or the database again. Depending on your hosting plan, you can enable NGINX page cache (Equilibrio plan) or advanced RAM-based Varnish page cache (Progresso and Successo plans).</p>
<h3>COMPATIBILITY</h3>
<p>The Ergonet Cache plugin is compatible with all other website caching and optimization plugins, such as WP Rocket, W3 Total Cache, WO Optimize, etc.<br />
The Ergonet Cache plugin functions solely as a communication layer between WordPress and the cache system (Varnish or NGINX) installed on the WordPress hosting platform (any plan) and dedicated cloud hosting (Solo and Multidomain plans) offered by Ergonet, available for purchase at this link: https://www.ergonet.it/hosting/hosting-wordpress-valore<br />
A fundamental requirement for the plugin to work is enabling the caching system from the WebPanel (Ergonet client area available at https://webpanel.ergonet.it) by the user who purchased the shared or dedicated cloud hosting service.</p>
<h3>HOW THE PLUGIN WORKS</h3>
<p>Once the caching system is enabled from the Ergonet WebPanel and the Ergonet Cache plugin is installed and activated, it will work without any additional configuration.<br />
Cache resource updates<br />
Each time the webmaster updates a post or page, the plugin installed in WordPress will automatically delete the old cached version to prevent users from seeing outdated content.<br />
At the same time, the homepage cache will also be cleared to reflect any new articles available on it.<br />
Cache resource deletion<br />
Thanks to the automatic update and removal functionality, there is no need to manually clear the cache. Moreover, forcibly clearing the entire cache is discouraged, as it would remove all previously stored resources (pages, articles, etc.) that had been frequently accessed.<br />
On websites with a large amount of content, a full cache purge could also cause significant slowdowns due to WordPress needing to regenerate all requested pages or articles from scratch.</p>
<h3>WHAT IS NOT CACHED</h3>
<p>To ensure the plugin works efficiently, some resources and specific HTTP calls are never cached. These include:</p>
<ul>
<li>Any page, article/resource visited by a logged-in user.</li>
<li>Any page, article/resource where a no-cache header or similar is set.</li>
<li>All requests made to the WordPress backend.</li>
<li>All data submission requests (e.g., registration forms, contact forms, comments, etc.)</li>
</ul>
<h3>HOW TO CHECK IF CACHING IS WORKING</h3>
<p>The server-side cache system sets specific HTTP headers indicating whether the requested resource (link) is cached or not. To verify if your website is using the cache correctly, you must check for these HTTP headers.<br />
It’s essential to ensure you are logged out of the WordPress site you’re checking, as well as from any other WordPress site open in other browser tabs. The first step is therefore to log out from the WordPress admin area.<br />
Open the developer tools based on your browser:</p>
<p>For Firefox: Menu <span aria-hidden="true" class="wp-exclude-emoji">→</span> Browser Tools <span aria-hidden="true" class="wp-exclude-emoji">→</span> Browser Console</p>
<p>For Chrome: View <span aria-hidden="true" class="wp-exclude-emoji">→</span> Developer Options <span aria-hidden="true" class="wp-exclude-emoji">→</span> Developer Tools</p>
<p>Once the developer tools are open:</p>
<p>Select the “Network” tab<br />
In Firefox, choose the “HTML” sub-tab, in Chrome, choose “Doc”<br />
Refresh the website page<br />
Click on the first row showing the domain name or visited link (with status 200)</p>
<p>In the right-hand column, you’ll see the response headers. The last header refers to the cache:</p>
<h3>VARNISH CACHE HEADER</h3>
<p>X-VC-Cache: HIT = the resource (page) is present in cache and was served from the Varnish cache system. This means the caching system is working properly.<br />
X-VC-Cache: MISS = the resource (page) is NOT in cache and was generated by the WordPress application. This means the cache system was instructed by headers or custom rules not to serve the cached content to the visitor.</p>
<h3>NGINX CACHE HEADER</h3>
<p>x-cache-status: HIT or STALE = the resource (page) is present in cache and was served from the NGINX cache system. This means the caching system is working properly.<br />
x-cache-status: MISS = the resource (page) is NOT in cache and was generated by the WordPress application. This means the cache system was instructed by headers or custom rules not to serve the cached content to the visitor.</p>
<h3>ENABLING THE CACHING SYSTEM FROM THE WEBPANEL</h3>
<p>The NGINX caching system is enabled by default and doesn’t require any specific settings.<br />
To enable the Varnish caching system, we recommend checking the dedicated guide: https://docs.ergonet.it/gestione-hosting/impostazioni-cache-server/cache-varnish</p>


Ergonet Cache

Ergonet Cache for WordPress is a free plugin developed by Ergonet srl, an Italian hosting company, to drastically improve the performance of a WordPre …

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Ben Dwyer

Peter Petrov

danwalmsley

davidlonjon

Jaroslav "Dero" Polakovic

exelero

Karthik Bhat

Liam Sarsfield (a11n)

<p>Speed up your WordPress site by optimizing page performance with Jetpack Boost. Easily activate one-click optimizations to boost your Core Web Vitals.</p>
<p>Did you know that a faster website:-</p>
<ul>
<li>Ranks higher on Google.</li>
<li>Improves bounce rate (people stay on your site for longer).</li>
<li>Increases your conversion rate.</li>
</ul>
<p>Increase your website performance and speed up your website with one-click optimizations that supercharge your WordPress site’s performance and improve core web vitals scores for better search engine listings.</p>
<p>Improving Core Web Vitals helps you rank higher on Google. A faster website also improves your SEO, helps you reduce your bounce rate and increase your ecommerce conversion rate.</p>
<ul>
<li>Largest Contentful Paint (LCP): Measures loading performance. Improve your LCP and improve your website loading speed.</li>
<li>First Input Delay (FID): Measures interactivity. To improve user experience pages should have a low FID.</li>
<li>Cumulative Layout Shift (CLS): Measures visual stability. Lowering your CLS helps improve your user experience.</li>
</ul>
<h3>Performance Modules</h3>
<p>Optimize your website with the same techniques used on the world’s most successful websites.</p>
<p>Each technique that is used to increase website performance is packaged up as a module that you can activate and try out.</p>
<p>Currently, the plugin has 6 performance modules available:</p>
<ol>
<li>
<p><em>Optimize CSS Loading</em> generates Critical CSS for your homepage, posts and pages. This can allow your content to show up on the screen much faster, particularly for viewers using mobile devices.</p>
<p>Read more about critical CSS generation at <a href="https://jetpack.com/redirect/?source=jetpack-boost-critical-css" rel="nofollow ugc">web.dev</a></p>
</li>
<li>
<p><em>Page Cache</em> speeds up your site by saving pages as static files. These files are quickly served to visitors, reducing load times and enhancing user experience.</p>
</li>
<li>
<p><em>Defer Non-Essential JavaScript</em> moves some tasks to after the page loads, so that important visual information can be seen sooner and your website loads quicker.</p>
<p>Read more about deferring JavaScript at <a href="https://jetpack.com/redirect/?source=jetpack-boost-defer-js" rel="nofollow ugc">web.dev</a></p>
</li>
<li>
<p><em>Image Guide</em> is a must-have feature for anyone who wants to optimize the images on their website. With this guide, you can ensure that the images on your site are the right size and dimensions, which is critical for improving user experience, page speed, and site ranking. Following the tips and best practices outlined in the guide, you can reduce image file sizes and speed up your site. Check out our <a href="https://jetpack.com/support/jetpack-boost/image-performance-guide/" rel="nofollow ugc">support page</a> to learn more about this feature and how it can help you achieve a faster and smoother website experience for your users.</p>
</li>
<li>
<p><em>Image CDN</em> allows your site to serve automatically-resized images in modern web formats directly from Jetpack’s worldwide Content Delivery Network.</p>
<p>Read more about Image CDNs at <a href="https://web.dev/image-cdns/" rel="nofollow ugc">web.dev</a></p>
</li>
<li>
<p><em>Concatenate and Minify CSS and JS</em> combines and shrinks your JavaScript and CSS resources to reduce the number and size of requests to your server, ensuring your content loads faster.</p>
<p>Read more about minifying files at <a href="https://web.dev/minify-css/" rel="nofollow ugc">web.dev</a></p>
</li>
</ol>
<p>Don’t want to have to manually generate your critical CSS each time you update your site? Let us do the heavy lifting for you with automated critical CSS – each time you update your site we will automatically regenerate your critical CSS and update your performance scores. Upgrading also gives you dedicated email support access.</p>
<h3>With 💚 by Jetpack</h3>
<p>This is just the start!</p>
<p>We are working hard to bring more features and improvements to Jetpack Boost. Let us know your thoughts and ideas!</p>
<p>We’d also like to give a special THANK YOU to the XWP team who provided help with initial research and scoping of the plugin and were engaged with our team throughout the project.</p>


Jetpack Boost – Website Speed, Performance and Critical CSS

10 seconds, one click, and improved my site speed by 12%. I'll take it.

Quick and easy


Boost is an easy-to-use plugin. The interface to improve CSS is just one click! 


Very easy to use


Tackled request with care. Expert team has a superb experience.


Awesome app in the history

Speed up your WordPress site with one-click optimizations like Page Cache, Critical CSS, and Image CDN to improve Core Web Vitals.

Ergonet Cache vs Jetpack Boost – Website Speed, Performance and Critical CSS