Comet Cache vs WP-Optimize
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Comet Cache v170220 · checked 23 Oct 2026 Free + paid · ★ 4.4/5 Visit Details | WP-Optimize v4.7.0 · checked 23 Oct 2026 Free · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 20,000+ | 1M+ |
| Last updated | July 2, 2025 | September 21, 2026 |
| Editions | Comet Cache · Comet Cache Pro ($) | WP-Optimize · WP-Optimize Premium ($) |
| Pros | Free full-page cache for anonymous visitors; Cron-driven cleanup of cache files; Simple settings for browser caching of dynamic pages | Page, browser and minified-asset caching in the free edition; Database cleanup for revisions, spam, tables and more; Image compression and WebP conversion |
| Cons | HTML and asset minification need Pro; CDN filters and Apache optimisations need Pro; Logged-in users are not cached in the free version | Unused CSS, Google Fonts hosting and Cloudflare purge are paid; Image compression relies on the reSmush.it service; Many scheduled background jobs run on the site |
| Mentioned in our posts | 1 | 1 |
| Features (Speed Optimization plugins checklist) | ||
| Page cache | Yes | Yes |
| Browser cache | Yes | Yes |
| Minify CSS/JS | Paid | Yes |
| CDN | Paid | Yes |
| Object cache | No | No |
| Database cleanup | No | Yes |
| Free version | Yes | Yes |
| More features | ||
| Other features | Cron job that cleans up cache files, Excludes WooCommerce pages and clears on stock change, Cache logged-in users (Pro) ($), HTML Compressor for CSS, JS and HTML (Pro) ($), Static CDN filters and domain sharding (Pro) ($), Automatic updater for Pro ($) | Image compression through reSmush.it, WebP conversion of compressed images, Scheduled page cache preload, 404 error log with daily pruning, Gzip compression test, Spam comment review link, Unused CSS removal ($), Local hosting of Google Fonts ($) |
| Integrations | ||
| E-commerce | WooCommerce | — |
| Plugins | bbPress | — |
| Other | — | reSmush.it, checkgzipcompression.com, Cloudflare ($) |
| Requires WordPress | 4.2 | 4.9 |
| Requires PHP | — | 7.2 |
| Tested up to | 6.9-alpha-60398 | 7.1 |
| Phones home | No | No |
| External services | — | checkgzipcompression.com, api.resmush.it, plugins.svn.wordpress.org, teamupdraft.com |