WP Speed of Light PRO Addon is a performance optimization extension that adds cache preloading, DNS prefetching, and automated database cleanup to the core caching engine. It is used by over 15,000 active users to improve Core Web Vital metrics and site loading speeds. The plugin simplifies technical optimizations like Gzip compression and resource minification through a centralized dashboard.
WPExclusive members get access to Speed of Light as part of a full plugin and theme library — plans from $9.99/month. See the full JoomUnited collection →
What Is WP Speed of Light PRO Addon?
WP Speed of Light PRO Addon is developed by JoomUnited and is a performance plugin for WordPress. It belongs to the performance category on WPExclusive, alongside other tools for optimization. The plugin was designed to make advanced technical speed improvements accessible to all users through a simplified interface.
Speed of Light solves slow server response times and heavy page weights by generating static HTML files and minifying resources. It is built for site owners who need to improve Google PageSpeed scores without manual .htaccess or database editing.
WP Speed of Light PRO Addon Features
The feature set is built around a global optimization approach that combines local server caching with external performance enhancements.
Advanced Caching and Preloading
Speed of Light includes a static file cache system that reduces database queries by serving pre-rendered HTML. The PRO version adds cache preloading, which automatically generates the cache so the first visitor after a cleanup does not experience a delay. It also provides specific cache versions for mobile and tablet devices, ensuring responsive themes load correctly across all hardware platforms.
Resource and Database Optimization
The plugin groups and minifies CSS, JS, and font files to minimize HTTP requests. It features a database cleanup system that can be automated to remove post revisions, trash, and spam at defined intervals. This ensures that the WordPress database remains lean, which is critical for maintaining fast query execution times as the ecommerce or blog content grows.
Image Strategy and Lazy Loading
The addon includes progressive image lazy loading, which initially displays a small 20-pixel thumb before loading the full asset. This system works in both scroll directions and preloads images two times the screen height to remain invisible on fast connections. Users also get access to image compression through the ImageRecycle integration, reducing PNG and JPEG sizes by up to 80%.
Third-Party Integrations
Full compatibility is maintained with major page builders including Elementor, DIVI, and Beaver Builder. It features a dedicated WooCommerce module that can disable unnecessary scripts on non-shop pages and clear customer cart sessions automatically. The plugin also integrates with major CDNs like Cloudflare, KeyCDN, and Amazon CloudFront for global content delivery.
Pricing
Check current pricing on the Speed of Light sales page — WPExclusive members access it as part of their plan.
| Plan | Price | Sites | Includes |
|---|---|---|---|
| Pro Addon | $49 | Unlimited | 1 Year Support & Updates |
| WordPress Bundle | $199 | Unlimited | All JoomUnited Plugins |
| WPExclusive Membership | From $9.99/month | Unlimited | Speed of Light + full library |
For developers managing multiple sites, a WPExclusive membership covers Speed of Light plus hundreds of other plugins and themes, which is usually less than one premium license.
Latest Version
The plugin receives regular updates to maintain compatibility with the latest versions of WordPress and its various integrations. WPExclusive updates plugin files promptly after each release to ensure members have access to the newest performance tweaks.
How to Install
- Download the Speed of Light .zip from your WPExclusive member account
- In WordPress: Plugins → Add New → Upload Plugin
- Select the .zip and click Install Now → Activate
- Navigate to the WP Speed of Light menu in the WordPress sidebar
- Run the performance dashboard check to identify which speed features to enable first
Use Cases
Improving Core Web Vitals for SEO
Site owners can target LCP and CLS metrics using the progressive lazy loading and file grouping features found in the performance settings.
Optimizing High-Traffic WooCommerce Stores
Store managers can use the selective WooCommerce optimization to strip unnecessary scripts from the homepage and blog, reducing total page weight and improving conversion rates.
Managing Multilingual and CDN Content
Global sites can leverage the dedicated CDN cleanup tools for Cloudflare or Varnish to ensure that updated content is immediately purged across all edge servers.
Agencies and Developers Managing Multiple Client Sites
WPExclusive provides a cost-effective way for agencies to deploy technical speed optimization across an entire client portfolio without individual per-site license fees.
Pros and Cons
✅ Strengths
- Integrated speed testing using webpagetest.org and Google data
- Smart lazy loading that includes progressive loading effects
- Comprehensive exclusions for page builders like Elementor and DIVI
⚠️ Limitations
- Advanced database automation requires the PRO Addon version
- Developer auto-updates require an active license key. WPExclusive publishes updates manually when new versions are released.
Is WP Speed of Light PRO Addon GPL Licensed?
Yes. WP Speed of Light PRO Addon is distributed under the GNU General Public License (GPL) — the same license that governs WordPress itself. GPL gives any user the legal right to use, study, share, and redistribute the software. This is the legal framework that makes WPExclusive’s membership model possible.
WPExclusive distributes 100% original, unmodified files — the same release the developer publishes. No injected code, no alterations, no security risks.
Get WP Speed of Light PRO Addon on WPExclusive
WPExclusive membership starts at $9.99/month, $87/year, or $149 lifetime — giving you WP Speed of Light PRO Addon plus every plugin and theme in the library, on unlimited sites.
Explore the full JoomUnited collection → or browse all WordPress plugins →
Frequently Asked Questions
What does WP Speed of Light PRO Addon do?
WP Speed of Light PRO Addon is a performance plugin that speeds up site loading through advanced caching, image lazy loading, and database optimization. Speed of Light manages file minification and CDN integration to reduce page weight.
Is WP Speed of Light PRO Addon free?
There is a free core version available on WordPress.org, but the PRO Addon features like preloading and automated cleanup require a premium license or WPExclusive membership.
What is the latest version of WP Speed of Light PRO Addon?
The plugin is actively maintained — WPExclusive members always receive the most current release after it is verified.
How much does WP Speed of Light PRO Addon cost?
Retail pricing is $49 for a single year of support and updates. Via WPExclusive, it is included in plans from $9.99/month.
Is it legal to use WP Speed of Light PRO Addon via WPExclusive?
The plugin is GPL licensed, which explicitly permits redistribution. WPExclusive provides original, unmodified files — fully within GPL terms.
Does Speed of Light work with WooCommerce?
Speed of Light has a dedicated WooCommerce integration that allows for the removal of unnecessary scripts and automatic cleanup of cart sessions to maintain database performance.
