At a glance
Speed Optimizer – The All-In-One Performance-Boosting Plugin
Boost your website performance and page speed, and increase conversions with powerful caching, frontend, media, and environment optimizations.
ezCache
Lightning-fast WordPress optimization — page caching, Redis Object Cache, Critical CSS, WebP images, CSS/JS optimization, and 15+ performance tools.
Full Comparison
Technical Specs
| Metric | Speed Optimizer | ezCache |
|---|---|---|
| Requires WP | 4.7+ | 5.0+ |
| Requires PHP | 7.0+ | 7.4+ |
| Tested up to WP | 7.0 | 6.8.5 |
| Plugin age | 12 yrs | 7 yrs |
Quick Verdict
ezCache is the better choice for most WordPress sites. Its 80% five-star rating from user reviews signals strong satisfaction, while Speed Optimizer sits at 72%. ezCache bundles Redis Object Cache, Critical CSS, and WebP support into one package, features you would otherwise piece together. Speed Optimizer has 1.0M+ installs, which is 100x more than ezCache, but its 14% one-star rate suggests notable friction. Pick ezCache unless you are locked into a Siteground hosting plan.
Feature Comparison: Speed Optimizer vs ezCache
| Feature | Speed Optimizer | ezCache |
|---|---|---|
| Page Caching | Yes | Yes |
| Redis Object Cache | Not listed in features | Included |
| Critical CSS Generation | Not listed in features | Included |
| WebP Image Conversion | Not listed in features | Included |
| CSS/JS Optimization | Yes | Yes |
| Minify CSS and JavaScript WordPress | Yes | Yes |
| Nginx Caching Support | Yes (tagged "nginx") | Not listed in tags |
| Environment Optimizations | Yes (tagged "environment") | Not listed in tags |
| Number of Performance Tools | Not specified | 15+ tools |
Who Should Use Speed Optimizer
- Siteground customers who want a wordpress caching plugin built by their host, it integrates directly with Siteground's server-level nginx caching and environment optimizations.
- Teams who value a large user base for stability; the plugin has 1.0M+ active installs, which provides a proven track record at scale.
- Anyone who wants to enable nginx caching wordpress without manual server configuration, as Speed Optimizer handles that layer automatically on Siteground servers.
Who Should Use ezCache
- Site owners who need a best cache plugin for wordpress with Redis Object Cache built in, a feature that cuts database query times and is absent from Speed Optimizer's feature set.
- Developers aiming to optimize images for web performance without a separate plugin; ezCache includes WebP conversion as part of its 15+ tools.
- Users frustrated by high one-star rates elsewhere, ezCache holds a 0% one-star score from its reviews, indicating consistent performance for its user base.
Community & Support
ezCache shows 0 open support threads in the last two months. That figure, combined with its 80% five-star rating and 0% one-star rating, suggests a plugin that ships with few issues. Speed Optimizer has 4 open threads over the same period, with a 72% five-star score and a 14% one-star score. The one-star percentage on Speed Optimizer is notable, it points to a meaningful minority of users encountering problems, likely tied to its deeper server-level integrations that can break on non-Siteground hosts.
Verdict: Speed Optimizer or ezCache for WordPress sites?
Pick Speed Optimizer if you are on Siteground hosting and want a wordpress performance optimization tool that taps into their server-level nginx caching. It handles environment tweaks that other plugins cannot touch. Its 1.0M+ installs prove it works at scale on that platform.
Pick ezCache if you want a caching plugin for woocommerce stores or any site that benefits from Redis Object Cache, Critical CSS, and WebP images, all in one plugin. ezCache delivers 15+ performance tools with an 80% five-star rating and a 0% one-star rate. For anyone asking how to speed up wordpress site without wrestling with multiple plugins, ezCache is the cleaner answer.
This comparison is AI-generated from live WordPress.org data. Install counts, ratings, versions and support statistics sync weekly, so the numbers on this page stay current. Content passes automated quality checks before publishing, and pages below our quality threshold are held for human review.
Read our full methodologyFrequently Asked Questions
Q How many people use Speed Optimizer compared to ezCache?
Speed Optimizer has 1.0M+ active installs while ezCache has 10K+, meaning Speed Optimizer is used on more sites.
Q Which has better user ratings — Speed Optimizer or ezCache?
ezCache averages 4.6/5 from 5 reviews, while Speed Optimizer averages 4.2/5 from 637 reviews — ezCache has the higher average rating.
Q Which is more actively maintained — Speed Optimizer or ezCache?
ezCache was last updated on Jun 29, 2026 and Speed Optimizer on May 15, 2026, so ezCache received the more recent update.
Q Are Speed Optimizer and ezCache both free?
Yes — both Speed Optimizer and ezCache are free to install from the official WordPress.org plugin directory. Some features may require a paid upgrade offered by the plugin author.
Q Is Speed Optimizer or ezCache better for WordPress sites?
For most WordPress sites, ezCache is the better choice because its feature set focuses on general caching, optimization, and Redis support, which works well with a wide range of hosts. Speed Optimizer is a strong option if you specifically use SiteGround hosting, as it is tightly integrated with their Nginx setup. For anyone not on SiteGround, ezCache provides more flexible performance tools out of the box.
Q Which is easier to set up for a WordPress beginner — Speed Optimizer or ezCache?
ezCache is easier for a beginner because it activates sensible defaults for caching and optimization right after installation, requiring minimal configuration. Speed Optimizer requires you to understand your hosting environment (especially Nginx) to get the full benefit, which can be confusing for new users. Most beginners will find ezCache's one-click setup more straightforward.
Q What is the biggest feature difference between Speed Optimizer and ezCache?
The biggest difference is that Speed Optimizer is built specifically for Nginx servers and SiteGround hosting, while ezCache includes Redis support for advanced object caching. If you use Redis for database query caching, ezCache gives you that capability, whereas Speed Optimizer focuses on server-level Nginx caching. This makes ezCache more adaptable to different server setups.
Q Can you switch from Speed Optimizer to ezCache (or the other way) without losing data?
Yes, you can switch between them without losing your site content because both plugins only manage cached files and performance settings, not your posts or pages. Before switching, you should clear the cache in your current plugin and deactivate it to avoid conflicts. Your actual site data remains safe in the WordPress database regardless of which caching plugin you use.
Q Which type of site should choose Speed Optimizer, and which should choose ezCache?
Choose Speed Optimizer if your site runs on SiteGround hosting with Nginx, as it is purpose-built for that environment and will give you the best server-level caching. Choose ezCache for any other hosting setup, especially if you use Redis or run a WooCommerce store, because its caching features are more universal. Sites on shared hosting or non-Nginx servers will see better results with ezCache.
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