Cache Enabler vs Speed Optimizer
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Cache Enabler v1.8.17 · checked 23 Oct 2026 Free · ★ 4.3/5 Visit Details | Speed Optimizer v7.8.5 · checked 23 Oct 2026 Free · ★ 4.2/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 100,000+ | 1M+ |
| Last updated | September 27, 2026 | October 20, 2026 |
| Editions | Cache Enabler | Speed Optimizer |
| Pros | Free, lightweight and simple to configure; Static HTML page cache with cache expiry and automatic clearing; WP-CLI commands and Gzip or Brotli pre-compression | Page caching, minification and lazy loading in one place; Browser cache headers and database cleanup; Free, from the WordPress.org directory |
| Cons | Small feature set; no object cache or database cleanup; Browser caching is limited to 304 revalidation; WebP rewriting assumes the .webp files already exist | Dynamic caching and Memcached are SiteGround-only; CDN premium tier depends on the hosting plan; Calls Google PageSpeed and Google Fonts services |
| Mentioned in our posts | 2 | — |
| Features (Speed Optimization plugins checklist) | ||
| Page cache | Yes | Yes |
| Browser cache | No | Yes |
| Minify CSS/JS | Yes | Yes |
| CDN | No | Paid |
| Object cache | No | Yes |
| Database cleanup | No | Yes |
| Free version | Yes | Yes |
| More features | ||
| Other features | Static HTML page cache on disk, Automatic cache clearing on content and option changes, Cache expiry with hourly cleanup, Image URL rewriting to WebP, Gzip and Brotli pre-compressed cache files, Separate cache versions for mobile devices, WP-CLI cache clearing commands, Cache size shown in the dashboard | Lazy loading of images, iframes and videos, Image optimisation, WebP image conversion, Force HTTPS, Heartbeat control, PageSpeed analysis |
| Integrations | ||
| Analytics | — | Google PageSpeed Insights |
| E-commerce | WooCommerce | — |
| Plugins | Autoptimize | — |
| Other | — | Google Fonts |
| Requires WordPress | 5.1 | 5.5.1 |
| Requires PHP | 5.6 | 7.0 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | — | www.googleapis.com, fonts.googleapis.com, sgwpdemo.com, api.wordpress.org |