WP Rocket | YouTube Preview Image Resolution vs WP Smush
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| Feature | WP Rocket | YouTube Preview Image Resolution checked 23 Oct 2026 Free Visit Details | WP Smush v4.3.5 · checked 23 Oct 2026 Free + paid · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | — | 1M+ |
| Last updated | — | October 20, 2026 |
| Editions | WP Rocket | YouTube Preview Image Resolution | Smush · Smush Pro ($) |
| Pros | Sets the preview image size WP Rocket uses for lazy loaded YouTube videos; Small single-file code with one filter hook | Bulk and on-upload image compression at no cost; Lazy loading for images and embedded video; Works with common page builders, WooCommerce and caching plugins |
| Cons | Resolution is hard-coded and needs a file edit to change; Only useful alongside WP Rocket | WebP, AVIF, resizing and the image CDN need Smush Pro; Images are sent to the WPMU DEV API for compression |
| Mentioned in our posts | — | 3 |
| Features (Speed Optimization plugins checklist) | ||
| CDN | — | Yes |
| Free version | — | Yes |
| More features | ||
| Other features | Sets YouTube preview image resolution | Bulk compression of the media library, Lazy loading for images and embedded video, WebP and AVIF conversion (Pro) ($) |
| Integrations | ||
| E-commerce | — | WooCommerce |
| Plugins | WP Rocket | WP Rocket, Elementor, Divi, Gravity Forms |
| Other | — | WPMU DEV Smush API |
| Requires WordPress | — | 6.4 |
| Requires PHP | — | 7.4 |
| Tested up to | — | 7.1 |
| Phones home | No | Only if you agree |
| External services | — | smushpro.wpmudev.com |
| Custom tables | — | 1 |