JoomUnited WP Speed of Light

WP Speed of Light is a powerful WordPress Speed Up accessible to everyone.

  • Current version: 2.6.6
  • Updated on: February 10, 2021
  • Author/Publisher: JoomUnited


JoomUnited WP Speed of Light

WP Speed of Light comes with a cache and Gzip compression system, and includes, a resource minification tool, a database cleanup system, a htaccess optimization tool and an automatic cache cleaner. The plugin PRO ADDON goes beyond, where NO other plugins can go: Cache preloading, font optimization, DNS prefetching, database automatic cleanup, to-notch support, image compression and more!


Play smart, optimize all your websites using a global solution

WP Speed of Light is the only WordPress Speed Plugin that offers a global optimization in a single membership: WordPress Optimization, Image Compression, CDN Integration, Speed Testing. Furthermore as our memberships are not limited by domain, you can run the same top notch optimization on all your websites!

Powerful WordPress and Browser Caching

WP Speed of light for WordPress comes with a lot of optimization systems such as cache system: it generates more static content (HTML) therefore reducing the number of database queries required to load the page. Plus, you have the possibility of storing the major part of the heavy page resources (like images) in the browser cache. And you can clean it when you want! Full optimization list:

  • Static file cache system
  • Gzip data compression
  • Browser caching
  • Files group: CSS, JS, Local fonts, Google Fonts
  • Resources minification: HTML, CSS, JS
  • Specific mobile cache per device
  • Remove query string
  • Cache external scripts
  • Option to disable WordPress features like REST API, RSS feeds, Gravatar, Emojis
  • Automatic cache clean: by interval, on save, by user group

WordPress Speed Testing & Performance Comparison

The optimization of a website is also about testing the performance to determine what elements can be optimized to yield performance. With WP Speed of Light you can run several tests on the same page and open a comparison table. We’ve made an integration with WebPageTest API (free) to run detailed speed tests on various elements like:

  • First loading time
  • Second loading time
  • First byte time
  • Time to start rendering
  • Element served from cache in %
  • Elements compressed with Gzip in %
  • Percent on compressed images

Database Speed Test and Cleanup

The database queries can represent something important about WordPress’ speed. The database speed test may help you to determine problems with a theme or a plugin and fix some major performance issues. The database cleanup can be made automatically at a defined frequency in the PRO ADDON.

WordPress CDN Integration

A CDN (Content Delivery Network) integration is available. It is compatible with all the major CDN on the market including Cloudflare, Amazon Cloudfront, MaxCDN, KeyCDN and others. Plus, there’s a specific automatic cache cleanup for:

  • Cloudflare CDN
  • MaxCDN
  • KeyCDN
  • Varnish Cache
  • Siteground SuperCacher

WordPress Image Compression

Images represent an average of 60% of the page weight so it’s a high priority in the optimization process. The image compression is the process of applying an invisible image compression and reduce image size by up to 80%. WP Speed of Light includes an image compression quota with the plugin subscription, so you’re sure that the image compression works with all other WordPress optimizations!

Best in Class WordPress Image Progressive Lazy Loading

The image lazy loading loads only images when it’s visible by user (on page scroll). WP Speed of Light lazy loading is the most advanced you can find on WordPress with a smart system that generates a small thumb of few Kb (almost nothing) then load it progressively with a nice effect, keeping your customer on your pages. Furthermore, as we preload 2x screen height, fast connection won’t even notice it! WP Speed of Light lazy loading main advantages:

  • Super light lazy loading script
  • Progressive image generation and loading effect
  • Works on both scroll direction: up to down / down to up
  • Almost invisible on fast connections
  • Build pages with more content and keep them light!

Cache Preloading & DNS Prefetching

The cache preloading is the process of generating a first version of the page cache automatically, so the first user that comes to the page after a cache cleanup won’t have to wait for the cache generation! It’s included in the plugin PRO ADDON. On the other side The DNS prefetching will pre-load DNS information on external domain links. For example, if your website is referring frequently to an external domain in hyperlinks, pre-fetching the DNS of this domain will load the page of this domain faster when a user click on it.

A Dashboard to Rule All the Performance

The WordPress Speed Plugin includes a dashboard that checks all major performance issues you have and fix them in one click, pretty handy to optimize performance in no time.

  • Check for WordPress cache activation and duration
  • Check for WordPress Gzip activation
  • Check for resources group and minification
  • Expire Headers presence and duration
  • Check website loading time (latest test)
  • Auto Clear cache activation
  • Check the number of plugins in use
  • Check for PHP version

Selective Cache for Mobile Devices

WP Speed of Light can handle the cache for mobile automatically, and you can generate a dedicated cache version per device or even disable it. The plugin also works automatically with mobile plugins like WPtouch. Mobile cache features:

  • Automatically serve cache for all devices
  • Dedicated cache for tablet
  • Dedicated cache for tablet
  • Option to disable cache for a specified device

Visual File Exclusion from Group & Minification

The file group and minification is one the tricky stuff to configure on complex WordPress website with tons of plugins. We’ve made the process simple in WP Speed of Light: Scan your website and index the files then, if needed, exclude one or several files from the process by using a simple ON/OFF button.

Features in WP Speed of Light Free version

– Features included in the FREE plugin version –

WordPress static cache

Add a page cache system to WordPress website: Minimise the requests and serve an ultralight HTML file

Minify WordPress content

Minification refers to the process of removing unnecessary or redundant data to serve smaller files, smaller is faster!

Remove query strings

Improve your Page Speed score by removing query strings from CSS and JS files.

Site speed testing

Test your WordPress speed using, store and compare your speed test results

Gzip compression

Send compressed (Gzipped) data to users. The smart compression uses the server module in priority then the htaccess if not possible.

Browser cache

With browser caching, static contents (JS, CSS, images) are stored in the browser therefore served quickly from the user hard drive when brownsing another page.

Cache clean on save

Clean the cache automatically when a page, post or any content is saved or modified. It works with Gutenberg AJAX saving too

Database speed test

Measure your WordPress database queries execution time, store and compare your results

Group and serve files

Grouping several CSS and JS files into a single file will minimize the HTTP requests number

Mobile devices cache

Cache device detection: Depending of your theme, cache may require to be served by device type (desktop, tablet, mobile)

Browser cache cleanable

The plugin can give instructions to clear the browser cache that stores CSS, JS and images

Cache URL exclusion

Possibility to include or exclude your pages from cache one by one or a set of URL using for example:*

Features in WP Speed of Light Pro Addon

Features included only in the WP Speed of Light Pro Addon version

Image Compression

Compress your images by up to 80% without any visual loss of quality. Get 1GB or 3GB of image compression included

Google Fonts – Local Fonts

Group all the local fonts and the Google fonts in a single file. One single file is loaded faster!

DNS Prefetching

The DNS prefetching will pre-load DNS information on external domain links. Useful when when you use frenquently the same domains in external links

Image Lazy Loading

Load only images when it’s visible in the by user (on scroll), remove up to 60% of your page weight with a single setting!

Visual Files Exclusion

Scan your website, exclude one or several files from the resources group and minify in a click

Database Automatic Cleanup

The database cleanup from post revisions, trash, spam… can be made automatically at a defined frequency

Cache Pre-Loading

User that comes after a page cache cleanup won’t have to wait for the cache generation, it’s automatically regenerated!

Cache Exclusion

Exclude a set of URL from cache using roles or a set of users using WordPress User Roles

Defer loading

Possibility to defer script loading in page footer, remove the render blocking heavy resources to be loaded in your page header
Not the correct version?

Between thousands of products and growing daily, we may not always catch when a new version is released. If you notice a product needs an updated version, just click on the “Request File Update” right on the product page. Then click “Send the update request list” and send us the email so we can let you know when it’s been updated.  We work hard to get the file updated for you within 24 hours, but give us at least 48 hours before you send us a second message.

How to Use/Update:

How to install or update themes/plugins/extensions manually:

Install the Easy Theme and Plugin Upgrades plugin. You can download it for free  CLICK HERE or download from the “Add New” WordPress repository inside your wordpress installation.

Install and activate the plugin. Once activated, you can update any theme/plugin by simply uploading the .zip file.

1. Download the latest .zip file for the Theme/Plugin/Extension  you want to update.

2. Log into your WordPress website.

3. Go to Theme/Plugins > Add New.

4. Click the “Upload Theme/Plugins” button at the top of the page.

5. Select the .zip file with the updated version of the Theme/Plugin/Extension that you downloaded.

6. Click the “Install Now” button. And then “Activate”.

Important Info:

All of our Themes, Plugins and Extensions are available under the GPL License. If you need support and/or automatic updates, please purchase directly from the author/developer.

Purchased downloads from WP For Less Club expire 1 year after purchase for individually purchased items. All WP For Less Club Pro Membership downloads expire when subscription ends. See our F.A.Q. for more information and answers to your questions or contact us.

Disclaimer: is not associated with or endorsed by the listed Publisher/Author/Developers in any way. These products are developed by the listed Publisher/Author/Developer and are released under the GPL license.

We do not claim to be the developer/author/publisher of any plugins/themes.