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CSS Optimizer
Clean up and remove unused CSS from your website. Also generates Critical CSS to improve PageSpeed Score.
The facts
- Rating
- 3.7★ from 6
- Active installs
- 100+
- Price
- Free
- Last updated
- 16 Mar 2022
- Added
- Nov 2021
- Requires WP
- 4.7
- Tested up to
- WP 5.9.16
- Requires PHP
- 5.1
- Downloads
- 10,919
Our analysis
AI-assistedCSS Optimizer – Remove Unused CSS is a WordPress plugin designed to help improve page performance by eliminating redundant CSS code. It works by connecting to the ZippiSite CSS Optimizer API to identify and retain only the necessary CSS rules for each page, potentially reducing the amount of unused code significantly.
This plugin is suitable for WordPress users who want to enhance their site's speed and performance, particularly those who have themes or plugins that include excessive CSS that is not utilized on every page.
Best for: This plugin is best for WordPress users looking to optimise their site's CSS for better performance.
What it does well
- ✓Free to use from the WordPress.org directory
- ✓Connects to ZippiSite's CSS Optimizer API
- ✓Targets redundant CSS to improve page performance
- ✓Addresses common issues flagged by Google’s PageSpeed Insights
Where it falls short
- •Limited information on specific features or settings
- •Only tested up to WordPress version 5.9.16
- •Directory score of 45/100 indicates potential issues
Verdict
CSS Optimizer – Remove Unused CSS offers a straightforward solution for reducing unused CSS, but its effectiveness may vary based on individual site configurations and it has a low directory score.
From the developer
wooncherk's own description of CSS Optimizer, lightly tidied.
“Remove Unused CSS” is frequently flagged in Google’s PageSpeed Insights. Indeed, most scenario, around 70% – 80% of a page’s CSS codes are redundant, and can be removed without affecting the overall visual. This happens mainly because WordPress themes and plugins are created as generic solutions that includes a bunch of features that may or may not be used on a particular page.
Example: A theme may come with a bunch of features such as slider, carousel, animation and etc, but your home page may use only the slider feature and your about page may use only the carousel feature. However, for practical reason, it’s virtually impossible to selectively include only the required CSS rules for the features that were enabled on a particular page.
This is where the CSS Optimizer becomes useful. The plugin make calls to ZippiSite‘s CSS Optimizer API to find the required CSS rules on a particular page, and remove the ones that are not needed.
Tagged as
purpose
Sliders & Carousels
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