How Can I Quickly Identify and Remove Unused Website Assets?

Identifying Unused Assets in a Website

Finding unused images and CSS styles within a website can be a time-consuming and error-prone task when done manually. However, with the right tools, this process can be significantly simplified.

Unused Image Files

Instead of manually searching through the website's files and comparing them to the loaded images, utilizing the "Audits" feature in Google Chrome's DevTools is an effective solution. Under "Audits" select "Remove unused CSS rules," and Chrome will scan the site and identify any unused images, preventing unnecessary resource loading.

Unused CSS Styles

Similarly, the latest versions of Chrome, starting from version 59, provide "CSS and JS code coverage." This feature profiles the site and highlights unused CSS declarations for IDs and classes that are not present on the site. This visual representation allows for easy identification and removal of unnecessary styles, ensuring a cleaner and optimized codebase.

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