WP Speed of Light
WP Speed of Light is a WordPress speedup plugin and load time testing. Cache, Gzip, minify, group, Lazy Loading, CDN
4.7(88 reviews)
·7.0K+ active installs·Updated 8 months agoAs of April 2026, WP Speed of Light is a WordPress cache plugin with 7.0K+ active installations and a 4.7/5 rating from 88 reviews. It has been downloaded 543K+ times in total. Requires WordPress 4.7+ and PHP 5.6+. Available on WordPress.org since 2016. Downloads are up 49% this week. Top alternative: WP-Optimize – Cache, Compress images….
4.7/588 reviews
7.0K+active installs
543K+total downloads
10 yearssince 2016
Overview
WP Speed of Light is a WordPress speedup plugin and load time testing. Cache, Gzip, minify, group, Lazy Loading, CDN
IMPORTANT NOTE ABOUT THIS PLUGIN:
After careful consideration, we’ve decided to merge the free versions of WP Meta SEO, WP Speed of Light, and WP Latest Posts into their respective premium versions. This consolidation will allow us to focus our resources on developing more robust, feature-rich extensions. We do offer some easy migration and prices for free users though.
Read the full article: Blog post announcement.
WordPress does not have a system for speed optimization by default. That’s why you need a powerful plugin that speed up WordPress with technical and advanced features, yet accessible to everyone.
WP Speed of Light starts with an advanced static cache…
Screenshots
Ratings & Reviews
4.788 reviews
5 ★
78
4 ★
3
3 ★
1
2 ★
0
1 ★
6
Recent Reviews
Estupendo plugin
by mabelmato·11 months ago
Fácil de configurar y con buenas opciones.
wszysko ok
by Marek Malinowski·1 year ago
ok
The best speedy plugin I ever tried.
by peopleinside·2 years ago
Just install and activate and even in a shared hosting very slow, this plugin will let you obtain a very good score in WordPress health check. Very suggested, thank you for this free plugin!
This inspires confidence even for advanced pro features.
Add some improvement
by bernard92000·2 years ago·4 replies
Nice extension,
But can you fix the HTML to better fit to W3C specification
Example: in the file ‘Configuration.php’:
replace line 88, <span class=”wpsol-ab-images””> wit <span class=”wpsol-ab-images””> (to delete the bouble “”)
Line 89 add the alt attribute, for example: alt=”spinner”
The Results are Awesome
by Adeel·3 years ago·1 reply
After using each and every speed optimizer, I came to know that wprocket could be the last resort but somehow, I found speed of light and installed and activated that. The results came awesome. My page speed for both mobile and desktop reached 100%. I simply love this one and would suggest others to try it.
Download Trends
Today: 38Yesterday: 39This week: 293Period total: 19K
Compatibility
| WordPress | 4.7+ requiredTested up to 6.8.5 |
| PHP | 5.6+ required |
Version Adoption
v3.3
85.9%
Other
7.6%
v2.6
6.5%
Top Alternatives to WP Speed of Light
Frequently Asked Questions
Changelog
3.3.6
- Add : Admin notice about merging the free version of WP Speed of Light into the Pro version
Contributors
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.