by JoomUnited
4.7 (88 reviews)
WP Speed of Light
WP Speed of Light is a WordPress speedup plugin and load time testing. Cache, Gzip, minify, group, Lazy Loading, CDN
Tested up to WP 6.8 (Current: 6.9)
v3.3.6
Current Version v3.3.6
Updated 5 months ago
Last Update on 28 Jul, 2025
Synced 9 hours ago
Last Synced on
Rank
#2,787
—
No change
Active Installs
7K+
-7.1%
KW Avg Position
149
-0.5 better
Downloads
540.8K
+2 today
Support Resolved
0%
—
No change
Rating
94%
Review 4.7 out of 5
4.7
(88 reviews)
Next Milestone 8K
7K+
8K+
131
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
Pro
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Rank Changes
Current
#2,787
Change
Best
#
Downloads Growth
Downloads
Growth
Peak
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Upgrade NowReviews & Ratings
4.7
88 reviews
Overall
94%
5
78
(89%)
4
3
(3%)
3
1
(1%)
2
0
(0%)
1
6
(7%)
Tracked Keywords
Showing 2 of 2| Keyword | Position | Change | Type | Updated |
|---|---|---|---|---|
| speed test | 100 | — | Tag | 10 hours ago |
| performance test | 198 | — | Tag | 10 hours ago |
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Start Tracking FreePlugin Details
- Version
- 3.3.6
- Last Updated
- Jul 28, 2025
- Requires WP
- 4.7+
- Tested Up To
- 6.8
- PHP Version
- 5.6 or higher
- Author
- JoomUnited
Support & Rating
- Rating
- ★ ★ ★ ★ ★ 4.7
- Reviews
- 88
- Support Threads
- 0
- Resolved
- 0%
Keywords
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Frequently Asked Questions
Common questions about WP Speed of Light
It is, of course we can't test with all dynamic element, yet you have some options to exclude some specific URL from optimization. You are welcome to send us compatibility request on our pre-sale forum or on the plugin directory support forum.
Yes sure, WP Speed of Light have a dedicated integration with Gutenberg, it can auto cleanup the content cache on saving.
Yes, totally free of charge, fell free to install, update and even ask us questions on the WordPress plugin directory forum. We offer an optional free upgrade.
Yes, we use a translation tool accessible from the plugin setting where you can: get languages, translate, share translation with us (and get a gift for that)
Yes, we have added some specific code to remove specific dynamic data from cache.
In the plugin we've made a distinction between casual optimization like caching, Gzip compression, headers expire, query strings and advanced optimization like file group and minify. You can activate all optimizations but, depending on your website, number, and complexity of your plugins, that you remove some files or pages from this optimization to avoid problems. All websites cannot be 100% optimized, even the big websites on the market like amazon.com
Some Google pagespeed recommendations require that you modify your plugin code, at least how the script are called, to defer some script loading, for example. At Google they're actually smart enough not to consider a score based on criteria you can't apply on all website BUT on loading time (refer to the Google Search Console) Our recommendation here: 1. Focus only on loading time, not on your score 2. Use WebPageTest.org instead 3. All the tools are available to get a 100% page speed score in the plugin
Yes, because the CDN resource call use URLs along with content inclusion and exclusion options only, so you can use any CDN service.
Yes, there's a specific integration in the optional pro addon, that offer the automatic Varnish cache cleanup on content save and manual cleanup.
Yes, there's a specific integration in the optional pro addon, that offer the automatic Siteground SuperCacher cache cleaup on content save and manual cleaup.