Let's Clear Things Up

BoostPro is designed to minimize that risk. The default settings are conservative and work well on the vast majority of WordPress sites. Core features like page caching, lazy loading, emoji cleanup, and heartbeat control are low risk and rarely cause issues. The advanced options (JS defer, CSS minification) can push performance further, but we recommend testing them on a staging site first since every theme and plugin combination is different.

BoostPro includes file-based page caching that saves fully rendered HTML pages to disk and serves them directly on subsequent visits, bypassing PHP and WordPress entirely. It automatically excludes logged-in users, POST requests, WooCommerce carts, and pages that set the DONOTCACHEPAGE constant. You can configure the cache TTL, add custom URL exclusions, and the cache is automatically purged when you update content. If your host already provides server-level caching, BoostPro detects the conflict and disables its own cache to avoid issues.

BoostPro includes file-based page caching with third-party cache purging, smart lazy loading for images and iframes with exclusion patterns, automatic critical CSS generation, WebP and AVIF image conversion with bulk optimization, per-image optimize/delete from the Media Library, CSS background image lazy loading, local Google Fonts hosting, emoji and embed cleanup, heartbeat control, CSS minification with data URI inlining, per-script JavaScript defer and delay, custom asset preloading, per-page/post disable controls, global styles removal, scheduled database cleanup, and WP-CLI commands. All features are included in every tier.

Yes. BoostPro automatically detects when you're editing in Elementor, Divi, Beaver Builder, Brizy, Bricks, and other page builders and disables its optimizations during editing so they don't interfere with the builder interface. On the frontend, all optimizations apply normally. If you run into a visual issue on a specific page, use the per-page disable controls to turn off individual features for that URL.

BoostPro converts your JPEG and PNG images to WebP and AVIF formats using your server's GD or ImageMagick library. No external API or cloud service required. You can bulk optimize your entire media library, enable auto-optimize on upload, or optimize individual images from the Media Library. Original files are always preserved. Converted files are stored separately and served automatically via .htaccess rewrite rules (Apache/LiteSpeed) or picture tags (Nginx), with AVIF preferred when the browser supports it. A single quality preset maps to optimized values for each format.

BoostPro scans for 28 plugins that overlap with its features, including caching plugins, image optimizers, lazy loading plugins, and minification tools. When it finds one, it shows an admin notice with a one-click deactivation link for each conflicting plugin. For caching plugins specifically, BoostPro hard-blocks its own page cache toggle until the conflict is resolved, so you never end up with two caching layers fighting each other.

WordPress databases accumulate junk over time: post revisions, auto-drafts, trashed posts, spam comments, transients, and orphaned metadata. BoostPro's cleanup removes this safely. Run it manually or set up scheduled cleanup on a daily, weekly, or monthly cycle so your database stays lean without you thinking about it.

Yes. BoostPro automatically detects server-level caching from hosts like WP Engine, Kinsta, Cloudways, and SiteGround. When it finds one, it disables its own page cache to avoid conflicts and focuses on the optimizations your host doesn't provide: lazy loading, resource cleanup, font optimization, CSS optimization, and database maintenance. No duplicate functionality, no stale content issues.

Instead of blindly deferring every script on your page (which breaks things), BoostPro Pro lets you choose exactly which scripts to defer. You'll see a list of every JavaScript file loaded on your site, and you can toggle defer on or off for each one individually. This gives you the performance benefit of deferred loading without the risk of breaking your checkout form or slider.

BoostPro automatically purges the cache when you publish or update posts, pages, or navigation menus. You can also manually purge from the BoostPro dashboard or the admin bar. Purging clears BoostPro's cache plus 16 third-party caches (WP Rocket, LiteSpeed, Cloudflare, Kinsta, WP Engine, and more) in one action. Developers can also purge from the command line with wp boostpro purge. To exclude specific URLs from caching, add them to the exclusion list in the Cache settings tab.

Yes. BoostPro includes exclusion controls for lazy loading. You can exclude images by URL pattern (one substring per line, like /hero or /banner) or by adjusting the above-the-fold skip count. Excluded images get loading="eager" so they load instantly. Iframe lazy loading can also be toggled independently.

It sounds great in theory, but in practice unused CSS removal breaks hover states, dynamic content, and anything loaded via JavaScript. The false positive rate is too high for a tool focused on reliability. We'd rather leave a few extra kilobytes on the page than break your site's interactive elements.

With HTTP/2 and HTTP/3, combining files into one large bundle is no longer a net win. It breaks caching granularity (one change invalidates the entire bundle), creates large monolithic files, and makes debugging harder. Modern servers handle multiple small requests efficiently. Combining was good advice in 2012. It's counterproductive now.

AVIF is a next-generation image format that typically produces files 20-50% smaller than WebP at equivalent visual quality. BoostPro can convert images to both formats simultaneously. When serving images, browsers that support AVIF get the smallest file, while older browsers fall back to WebP or the original. AVIF conversion requires PHP 8.1+ with GD or ImageMagick AVIF support.

Yes. BoostPro adds a meta box to the post/page editor where you can disable specific optimizations on a per-URL basis. This is useful for landing pages that need specific scripts, pages with complex JavaScript interactions, or any page where you want to fine-tune which optimizations apply.

When CSS deferral is enabled, BoostPro automatically generates critical CSS for each page on your site via a cloud API. It creates separate CSS for desktop and mobile viewports so above-the-fold content looks correct on both. Critical CSS is generated on the first visit to each page, cached in the database, and automatically regenerated when content changes. Pages load normally with render-blocking CSS until their critical CSS is ready, then deferral kicks in automatically. This means zero risk of a flash of unstyled content on any page. A manual fallback textarea is also available if you want deferral to activate immediately before auto-generation completes.

Yes. BoostPro includes two WP-CLI commands: wp boostpro purge to clear all caches (BoostPro plus detected third-party caches) and wp boostpro status to view cache statistics including cached page count, cache size, and last cleared time. Useful for deployment scripts, staging workflows, or managing sites over SSH.

BoostPro works on individual sites within a multisite network when activated per-site. Each site gets its own optimization settings and database cleanup schedule. Network-wide configuration is planned for a future release.