CSS Scan

CSS Scan

CSS Scan is a browser extension and web app that analyzes the CSS on any webpage to identify unused CSS selectors. It scans the HTML and CSS to detect unused rules, helping optimize page load speed.
CSS Scan image
css optimization performance

CSS Scan: Analyze Unused CSS Selectors

Browser extension and web app to identify unused CSS selectors, optimizing page load speed

What is CSS Scan?

CSS Scan is a useful tool for web developers and designers to optimize the CSS on their webpages. It is available as both a browser extension and a web app that analyzes the CSS on any given webpage to identify unused CSS selectors.

When the CSS Scan extension or web app is run on a page, it scans the page's HTML structure as well as its CSS files. It detects any CSS selectors that are not actually being used to style elements on that page. These unused CSS rules unnecessarily increase the page size and load time.

By cleaning up CSS and removing these unused styles, pages can have faster load times and deliver better performance. CSS Scan generates detailed reports highlighting the unused CSS selectors, allowing developers to easily remove these rules from their stylesheets and streamline their CSS.

As websites grow larger in size, containing more pages and more complex CSS, unused CSS rules accumulate easily. CSS Scan empowers developers to analyze their sites and maintain optimized CSS for every page. With faster page speeds, sites enjoy improved user experience and search engine visibility.

CSS Scan Features

Features

  1. Identifies unused CSS selectors
  2. Analyzes HTML and CSS to detect unused rules
  3. Helps optimize page load speed
  4. Available as a browser extension and web app

Pricing

  • Free

Pros

Provides detailed analysis of CSS usage

Helps improve website performance by removing unused CSS

Easy to use and integrate into development workflow

Supports multiple browsers and platforms

Cons

Limited to analyzing CSS usage, may not cover other performance optimization aspects

Requires manual review and action to remove unused CSS

May not work well with complex or dynamically generated websites


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