LiteSpeed Cache vs Speed Up – Optimize CSS Delivery (2026)
Detailed side-by-side comparison of two WordPress plugins, based on real-time data from WordPress.org.
Speed Up – Optimize CSS Delivery
1.0K+ active installs
Free
Quick Verdict
As of April 2026, Speed Up – Optimize CSS Delivery has a higher user rating (5/5 from 8 reviews) while LiteSpeed Cache leads in active installations (7.0M+ vs 1.0K+). Both are free WordPress plugins. LiteSpeed Cache has accumulated 129M+ total downloads while Speed Up – Optimize CSS Delivery has 59K+.
Detailed Comparison
| Metric | LiteSpeed Cache | Speed Up – Optimize CSS Delivery | |
|---|---|---|---|
| Rating | 4.8/5 | ► | 5/5 |
| Total Reviews | 2,726 | ◄ | 8 |
| Active Installs | 7.0M+ | ◄ | 1.0K+ |
| Total Downloads | 129M+ | ◄ | 59K+ |
| Support Resolution | 70% | N/A | |
| Last Updated | 3 days ago | ◄ | 3 years ago |
| First Released | 2016 | 2016 | |
| Age | 10 years | 10 years | |
| WP Requires | 5.3+ | 3.5+ | |
| PHP Requires | 7.2+ | false+ | |
| Business Model | Free | Free | |
| Latest Version | 7.8.1 | 1.0.11 |
Rating Breakdown
LiteSpeed Cache
Speed Up – Optimize CSS Delivery
Download Trends
Over the past 30 days, LiteSpeed Cache averaged approximately 131,825 daily downloads while Speed Up – Optimize CSS Delivery averaged 5.
Recent Reviews
LiteSpeed Cache Reviews
Fast & Smooth
Site speed improved a lot after using this. Easy setup n great caching options. Pages load way faster now. really happy with it tbh 👍
BEST CACHE PLUGIN – enterprise performance, features, reliability
I’ve been using LiteSpeed server for over 10 years, LiteSpeed cache for nearly 10 years (almost since the beginning). They keep developing and innovating, nothing else even comes close.
Works great with Hostinger
Works great with Hostinger. I’ve had to toy with a few of the settings to get the optimized results I was looking for but that was easy to do.
Speed Up – Optimize CSS Delivery Reviews
5 estrelas. Funciona muito bem.
Muito bom.
This plug-in is a blessing
This plug-in is a blessing This plug-in is the best! We have to give a big prize to the person who created this plug-in. Thank you very much.
Works great!
Does what it says on the tin, which Google pagespeed likes a lot.
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Frequently Asked Questions
Is LiteSpeed Cache or Speed Up – Optimize CSS Delivery more popular?
Which has better ratings — LiteSpeed Cache or Speed Up – Optimize CSS Delivery?
Are LiteSpeed Cache and Speed Up – Optimize CSS Delivery free?
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Plugin data sourced from WordPress.org. Comparison and analysis by PluginSift.