PageSpeed Ninja is the ultimate performance plugin, specially designed to tackle slow loading times on your website on both desktop and mobile platforms. This plugin effortlessly addresses Google PageSpeed Insights issues and significantly improves Core Web Vitals.
This tool offers a range of features designed to optimize your website’s speed:
- Compression: Implement Gzip and Brotli compression for faster load times.
- Enhancing Critical Rendering Path: Automatically generate critical CSS for above-the-fold content to improve the critical rendering path.
- Optimize Images: Improve loading speed with optimized image formats.
- Efficient Image Formats: Convert to WebP format for faster performance.
- Lazy Load: Optimize initial load with image lazy loading and optional low-quality placeholders.
- Optimize Google Fonts: Streamline Google Fonts loading for quicker rendering.
- Cache Leveraging: Utilize browser and server-side caching for improved performance.
- Benefit from 10+ years of experience optimizing 200,000+ mobile-friendly websites to offer even more enhancements, including image optimization, caching, and a suite of front-end and back-end performance improvements.
This plugin is your go-to solution for reducing slow loading times, improving SERP optimization, and boosting website speed, making it an essential tool for performance optimization and SEO.
Why Choose PageSpeed Ninja?
Are you looking to improve your website’s performance and Google search rankings? PageSpeed Ninja excels in core web vitals and SEO optimization. For over a decade, we’ve been at the forefront of mobile web optimization. You might be familiar with one of our popular projects, Lazy Load XT. PageSpeed Ninja represents our expertise gained from optimizing the performance of over 200,000 websites on mobile devices. We believe you won’t find a similar, user-friendly, all-in-one solution for boosting the performance your website.
Benefit from our suite of unique features designed to turbocharge your site’s loading speed. From innovative critical CSS generation for above-the-fold content to implementation of tagged page caching, we ensure lightning-fast load times that improve critical performance metrics such as Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and more.
Before You Install
Our statistics indicate that the plugin improves the speed of 4 out of 5 websites. However, certain theme and plugin combinations, especially those related to caching and optimization, may lead to compatibility issues. Therefore, our plugin might not suit every website. To preview how PageSpeed Ninja could benefit your site, we’ve developed a simple tool that allows you to test it before installing it. We highly recommend that you visit PageSpeed.Ninja and run a test of your website beforehand. Please note: To accurately test your site on PageSpeed.Ninja, it’s crucial to temporarily disable any optimizing plugins. This test requires raw data to apply its own optimization.
People who own, design, or develop websites are constantly looking for efficient ways to boost performance without getting down in tweaking every single setting. This is precisely where the “Presets” feature of the PageSpeed Ninja comes in.
PageSpeed Ninja offers five different presets, each tailored to specific optimization needs:
– Optimal: suitable for the majority of websites,
– Safe: prioritizes compatibility (only a minimal subset of optimizations is enabled),
– Compact: focuses on saving disk space (image optimization and convert to WebP are disabled),
– Ultra: aims for maximum optimization (but may be incompatible with some themes and plugins),
– Experimental: reserved for testing new, possibly less stable features.
PageSpeed Ninja Settings Groups
PageSpeed Ninja organizes its settings into groups aligned with the Google PageSpeed Insight categories. Using the data from the Google PageSpeed Insight speed analysis, the plugin categorizes the settings groups into three distinct classes: Should Fix, Consider Fixing, and Passed.
Within the General settings, users can easily enable or disable each settings group (specific settings depend on the preset selected), and the Advanced settings page offers fine-tuning all settings according to specific preferences.
Each switch in the settings interface is color-coded to reflect its impact on your website’s PageSpeed Insights score:
– Green: Improves the score.
– Orange: Has minimal effect on the score.
– Red: Negatively affects the score.
Note that adjusting certain settings may cause related switches to change color due to their interrelated effects on performance.
Initial Server Response Time was Short
This feature within the PageSpeed Ninja optimizes server responses by implementing efficient caching mechanisms. By using advanced page cache strategies, it reduces response time to incoming requests (the Time To First Byte metric).
Serve Static Assets with an Efficient Cache Policy
Enable Text Compression
Preconnect to Required Origins
This feature in the PageSpeed Ninja optimizes website performance by initiating early connections to third-party origins, reducing latency and improving load times. Using DNS prefetching, it proactively resolves domain names for faster connections. By pre-establishing connections to essential domains such as CDNs or external APIs, it reduces handshake time and improves overall page speed.
Preload Key Requests
This setting within the PageSpeed Ninja focuses on optimizing website load times by proactively preloading critical resources. This feature strategically identifies and preloads essential assets, such as fonts, scripts, or CSS files that are required for the initial page rendering process. By fetching these key requests ahead of time, it significantly improves page speed.
The “Minify CSS” settings within the PageSpeed Ninja offer a robust set of tools designed to boost website performance by minimizing CSS files. These settings use advanced CSS minification techniques by using a CSS minifier to compress and optimize CSS resources. By reducing CSS size, the plugin significantly improves page load times.
Eliminate Render-Blocking Resources
Ensure Text Remains Visible During Webfont Load
This feature within the PageSpeed Ninja prioritizes the visibility of text while web fonts are loading. It uses the “swap” mode for web fonts to ensure that a fallback font is displayed immediately, preventing a flash of invisible text (FOIT). Additionally, it optimizes the loading of Google Fonts, ensuring that content remains visible during the font-loading process. This optimization significantly improves the user experience and page performance.
Avoids Enormous Network Payloads
Efficiently Encode Images
This setting within the PageSpeed Ninja provide a comprehensive suite of optimize images tools. This feature allows users to fine-tune the optimization process by adjusting JPEG, WebP, and AVIF qualities to ensure efficient compression. With its range of customizable settings, it allows users to optimize and compress images to varying degrees, serving as a powerful picture optimizer.
Serve Images in Next-Gen Formats
This feature, a core component of the PageSpeed Ninja, is a key tool for optimizing website images. This feature facilitates the conversion of images into modern formats such as WebP, a next-gen image format known for its superior compression and quality attributes. This setting acts as an image converter, seamlessly converting existing image files into the WebP format, thereby improving website loading speed and performance. By leveraging the capabilities of WebP, this image conversion setting ensures optimal image delivery.
Defer Offscreen Images
The “Defer offscreen images” feature within the PageSpeed Ninja offers various optimizations aimed at improving page load times by implementing lazy loading techniques. This feature delays the loading of images, videos, and iframes that are not immediately visible on the user’s screen, using image lazyload methods to prioritize content above the fold. The plugin allows users to choose lazy load with one of two types of Low-Quality Image Placeholders (LQIPs): gradient placeholders and blurred low-quality placeholders. These placeholders are displayed in place of the actual images, providing a smoother initial load while the full-quality images lazy load in the background.
Image Elements Have Explicit Width and Height
This setting in the PageSpeed Ninja focuses on optimizing the rendering of web pages by ensuring that all images have width and height attributes. This optimization strategy aims to prevent layout shifts during page loading by specifying the exact dimensions for each image element and ensures that browsers pre-allocate space for images based on the provided dimensions, eliminating the need for recalculations when images load.
Avoids an Excessive DOM Size
This setting within the PageSpeed Ninja focuses on optimizing webpage performance by reducing the Document Object Model (DOM) size. Currently, this is accomplished by eliminating embedded plugins such as Flash, ActiveX, Silverlight. In additional, ongoing development may introduce further optimization techniques to trim excess DOM elements and improve overall website speed.
Has a Meta Viewport Tag with width or initial-scale
This feature within the PageSpeed Ninja optimizes web pages by ensuring that they contain an important meta viewport tag. This tag is crucial for improving mobile responsiveness. Including this tag allows web content to properly scale and adapt to different devices and screen sizes, ultimately optimizing the page for seamless viewing across a range of devices.
The Advanced Settings page within the PageSpeed Ninja serves as a central hub for users seeking more control over their website optimization. This section not only allows users to fine-tune settings but also facilitates efficient cache management and provides troubleshooting capabilities. Users can adjust specific parameters to tailor the plugin’s performance optimization precisely to their website’s requirements.
Free License Key
Starting from November 2023, PageSpeed Ninja requires a free license key for connectivity to our servers. This important update results in improved server load balancing to prevent resource exhaustion and ensure uninterrupted performance. You can get your free license key by visiting https://pagespeed.ninja/download/.
PageSpeed Ninja Pro
When you delete the plugin, it will automatically revert all settings to the original state as they were before this plugin was installed. During this process, the “/s” directory containing optimized files will be removed and changes made to “.htaccess” files will be undone. Please note that uninstalling the plugin will remove all data associated with the plugin, including settings and logs.
Feedback, Bug Reports, and Logging Possible Issues
If you have any questions, suggestions, or encounter issues related to site speed optimization, we encourage you to contact us at email@example.com. Whether you’re a user, developer, or tester, your feedback is essential to improving our services.
To facilitate troubleshooting, PageSpeed Ninja offers error logging capabilities. You can enable this feature in the Advanced tab of the PageSpeed Ninja settings. If you encounter any problems, you can help us in resolving them by providing us with the relevant error log file. Your assistance will help us improve your experience with PageSpeed Ninja.
- Upload the plugin files to the
/wp-content/plugins/psn-pagespeed-ninjadirectory, or install the plugin directly from the WordPress plugins screen. We highly recommend creating a backup of your site beforehand, just as you would before installing any new plugin.
- Activate the plugin through the “Plugins” screen in the WordPress dashboard.
- Select the optimization preset in the post-install pop-up window and click Save.
- Navigate to PageSpeed Ninja and adjust the optimization levels suggested by Google’s PageSpeed Insights (note that all optimizations are disabled by default). The plugin will then optimize your images, JS and CSS files, and update .htaccess files to fix the issues identified by Google PageSpeed Insights.
Does this plugin have any conflicts with Yoast or any of the other SEO plugins out there?
The PageSpeed Ninja plugin should work pretty well with most other plugins without issues. However, if some SEO plugins try to do some of the same things as this plugin, then conflicts could be possible especially if gzip compression is enabled. However, that is pretty unlikely.
Is PageSpeed Ninja compatible with all WordPress themes and plugins?
While PageSpeed Ninja strives to be compatible with a wide range of themes and plugins, there are rare cases where conflicts may occur. It’s important to test the plugin in your specific setup and contact the plugin support for assistance.
Can PageSpeed Ninja guarantee a perfect PageSpeed score?
PageSpeed Ninja offers powerful optimization features, but achieving a perfect PageSpeed score depends on many factors, including your website’s structure, hosting environment, and content. The plugin significantly improves performance, but individual scores may vary.
Can I revert optimizations made by PageSpeed Ninja?
Yes, PageSpeed Ninja allows you to undo optimizations through the plugin’s settings. However, it’s important to note that undoing optimizations can affect your website’s performance and PageSpeed score. As a last resort, you can uninstall the plugin; this process will remove all files associated with the plugin.
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= 1.3.2 Stable Release [19 February 2024]
– Fixed PHP warning on wrong image file
= 1.3.1 Stable Release [13 February 2024]
– Added support of class-based selectors in Elements to Hide [Pro]
– Fixed first-time visitor cookie expiration
– Fixed typo in tooltip
= 1.3.0 Stable Release [12 February 2024]
– Added optimization of video’s poster and input[type=image] images
– Added support of inlining JS/CSS for first-time visitors
– Added support of DOM size reduction [Pro]
– Added lazy YouTube loading feature [Pro]
– Fixed issue with empty @media in optimized CSS
– Fixed issue with lazy loading of background images [Pro]
– Performance optimizations
– Improved backend UI