How can I reduce the unused JavaScript and improve the mobile score on my Webflow website?

Published on

September 22, 2023

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To reduce unused JavaScript and improve the mobile score of your Webflow website, you can follow these steps:

Use Webflow's built-in interactions: Webflow provides a powerful interactions feature that allows you to create animations and interactions without writing custom JavaScript. By using Webflow's interactions instead of custom code, you can reduce the amount of JavaScript on your site.
Minify your JavaScript: Minifying JavaScript involves removing unnecessary characters like whitespaces, line breaks, and comments, thus reducing the file's size. This can help optimize loading times and improve mobile performance. There are online tools available that can automatically minify your JavaScript code.
Remove unused JavaScript libraries: If you have included JavaScript libraries on your site but are not using all of their features, consider removing them. Unused JavaScript libraries contribute to unnecessary page weight and can slow down your website.
Load JavaScript asynchronously: JavaScript can block the rendering of your website, especially on mobile devices. To improve mobile performance, consider loading JavaScript asynchronously. This allows the page to continue rendering while the JavaScript file is still loading.
Combine multiple JavaScript files: If your website has multiple JavaScript files, combining them into a single file can reduce the number of requests made by the browser, improving loading times. Webflow allows you to add custom code to your site's settings, where you can combine and minify JavaScript files.
Optimize images: While not directly related to JavaScript, optimizing images can significantly improve mobile scores. Resize and compress images to reduce file sizes without compromising quality. Webflow's built-in image optimization feature can help with this.
Use lazy loading: Lazy loading is a technique that defers the loading of certain assets, such as images and videos, until they are needed. By implementing lazy loading for JavaScript-related assets, you can improve mobile loading times and avoid unnecessary JavaScript execution.

By following these steps, you can reduce unused JavaScript and improve mobile scores on your Webflow website, allowing for better performance and user experience.

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