Speculative Loading vs WP-Optimize
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | Speculative Loading v1.7.0 · checked 23 Oct 2026 Free · ★ 5.0/5 Visit Details | WP-Optimize v4.7.0 · checked 23 Oct 2026 Free · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 70,000+ | 1M+ |
| Last updated | August 26, 2026 | September 21, 2026 |
| Editions | Speculative Loading | WP-Optimize · WP-Optimize Premium ($) |
| Pros | Near-instant page changes for visitors; Settings under Settings > Reading; Maintained by the WordPress Performance Team | Page, browser and minified-asset caching in the free edition; Database cleanup for revisions, spam, tables and more; Image compression and WebP conversion |
| Cons | Prerendering loads pages before the click, so page scripts may run early; Behaviour depends on browser support for the Speculation Rules API | Unused CSS, Google Fonts hosting and Cloudflare purge are paid; Image compression relies on the reSmush.it service; Many scheduled background jobs run on the site |
| Mentioned in our posts | — | 1 |
| Features (Speed Optimization plugins checklist) | ||
| Page cache | — | Yes |
| Browser cache | — | Yes |
| Minify CSS/JS | — | Yes |
| CDN | — | Yes |
| Object cache | — | No |
| Database cleanup | — | Yes |
| Free version | — | Yes |
| More features | ||
| Other features | Speculation rules printed in the footer, Prefetch or prerender mode and eagerness settings, Exclude paths from speculation | Image compression through reSmush.it, WebP conversion of compressed images, Scheduled page cache preload, 404 error log with daily pruning, Gzip compression test, Spam comment review link, Unused CSS removal ($), Local hosting of Google Fonts ($) |
| Integrations | ||
| Other | — | reSmush.it, checkgzipcompression.com, Cloudflare ($) |
| Requires WordPress | 6.9 | 4.9 |
| Requires PHP | 7.4 | 7.2 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | — | checkgzipcompression.com, api.resmush.it, plugins.svn.wordpress.org, teamupdraft.com |