FAQ / Help

What does PageSpeedBooster optimize?

Images (WebP/AVIF, lazy‑load), CSS/JS (minify, combine, critical CSS, defer/delay), fonts (preload, swap), caching, preload & resource hints, and safe 3rd‑party script control.

Will it improve my PageSpeed Insights score?

Most sites see a noticeable improvement after enabling safe defaults. The exact gain depends on your theme, plugins, hosting, and existing bottlenecks.

Is it safe for WooCommerce?

Yes. Cart, checkout, and account pages use conservative rules by default to avoid breaking dynamic flows. You can exclude specific assets or URLs if needed.

Does it replace my caching plugin?

It includes page and browser caching. You can use it alone or alongside an existing caching plugin—just avoid enabling the same feature in two places at once.

Do I need a CDN?

No, but a CDN helps for global audiences. PageSpeedBooster is CDN‑friendly and adds headers and file structures that work well with major CDNs.

How do I handle 3rd‑party scripts?

Delay analytics/marketing tags on interaction or after a short timeout. This reduces main‑thread blocking and improves INP without losing tracking.

How do I fix CLS from fonts?

Preload key fonts and apply font‑display:swap to avoid layout shifts. Consider self‑hosting fonts to reduce blocking and improve stability.

Can I exclude specific pages or assets?

Yes. Use per‑URL and per‑asset exclusions and safe mode to test changes. You can also override global rules per page/template.

How do I verify improvements?

Run PageSpeed Insights and Lighthouse before and after. Also track real‑user Core Web Vitals in Google Search Console over time.

Does it optimize existing images?

Yes. Conversions to WebP/AVIF and responsive sizes can apply to your current media library. Originals can be kept for compatibility.

Is there a safe mode or rollback?

Yes. Toggle features individually, add exclusions, and use rollback to revert quickly if something conflicts with your theme or a plugin.

What are the minimum requirements?

WordPress 5.8+, PHP 7.4+, MySQL 5.6+ or MariaDB 10.1+, and HTTPS is recommended.