Comprehensive image optimization with WebP, AVIF, Lazy Load, and more. Optimize images automatically for Faste...
Free
1M+ installs 4.8★ (1,838)
PhastPress
PhastPress automatically optimizes your site for the best possible performance.
The facts
- Rating
- 4.9★ from 99
- Active installs
- 10k+
- Price
- Free
- Last updated
- 13 Aug 2026
- Added
- Dec 2017
- Requires WP
- 6.2
- Tested up to
- WP 7.1
- Requires PHP
- 7.3
- Downloads
- 532,942
Our analysis
AI-assistedPhastPress is a WordPress plugin designed to enhance website performance by optimising load times through various techniques. It automatically handles scripts, stylesheets, and images to align with Google PageSpeed Insights and GTmetrix recommendations.
The plugin requires no configuration; you simply install and activate it. It is suitable for website owners looking to improve their site's speed and performance without needing technical expertise.
Best for: This plugin suits website owners who want to enhance their site's performance easily.
What it does well
- ✓Improves load times using advanced optimisation techniques
- ✓No configuration is needed after installation
- ✓Optimises images and supports modern formats like AVIF and WebP
- ✓Loads scripts and stylesheets asynchronously
- ✓Compatible with legacy scripts
Where it falls short
- •Limited information on specific features beyond the author's description
Verdict
PhastPress offers a straightforward solution for improving website speed, making it a practical choice for those seeking performance enhancements without complex setups.
From the developer
Albert Peschar's own description of PhastPress, lightly tidied.
PhastPress uses advanced techniques to manipulate your pages, scripts, stylesheets and images to significantly improve load times. It’s designed to conform to Google PageSpeed Insights and GTmetrix recommendations and can improve your site’s score dramatically.
PhastPress’ motto is no configuration. Install, activate and go!
PhastPress has the Phast web page optimisation engine by Albert Peschar and Milko Kosturkov at its core.
Image optimization:
- Phast optimizes images using PNG quantization (pngquant) and JPEG recoding (libjpeg-turbo).
- Phast inlines small images (< 512 bytes) in the page.
- Phast converts JPEG images into AVIF or WebP for supporting browsers.
- Phast enables native lazy loading to speed up page loading and save bandwidth.
Asynchronous scripts and stylesheets:
- Phast loads all scripts on your page asynchronously and in a single request, while maintaining full compatibility with legacy scripts, due to our custom script loader.
- Phast proxies external scripts to extend their cache lifetime.
- Phast inlines critical CSS automatically by comparing the rules in your stylesheets with the elements on your page.
- Phast loads non-critical CSS asynchronously and in a single request.
- Phast inlines Google Fonts CSS.
- Phast lazily loads IFrames to prioritize the main page load.
Get the full power of Phast for your website by installing PhastPress now.
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