To fix the issue with Google PageSpeed reporting 1 blocking script resource and 4 blocking CSS resources causing a delay in rendering your Webflow page, you can follow these steps:
1. Minify and concatenate scripts: Start by minimizing and combining your JavaScript files into a single, optimized file. This can be done using an external minification tool like UglifyJS or by leveraging Webflow’s built-in script minification feature. Additionally, consider placing the script tags at the bottom of your HTML code, just before the closing
tag, to prevent render-blocking.
2. Minify and concatenate CSS: Similar to JavaScript, minify and concatenate your CSS files into a single file to reduce the number of blocking resources. Webflow's built-in CSS minification can assist with this process. Additionally, using inline CSS for essential or critical styles can reduce render-blocking, as it eliminates the need for an external file.
3. Use async and defer attributes: Utilize the async and defer attributes for script tags whenever possible. The async attribute allows the browser to download the script without blocking rendering, whereas the defer attribute specifies that the script can be executed after the HTML parsing is complete. Choose the appropriate attribute based on the script's behavior and dependencies.
4. Enable lazy loading: Lazy loading delays the loading of non-critical resources, such as images, until they are needed. This approach can significantly improve your page's initial load time. Webflow provides a native lazy loading feature for images, so make sure to enable it for relevant elements.
5. Optimize and compress images: Large image file sizes can greatly contribute to slow rendering times. Use image compression tools to reduce the file sizes without compromising quality. Webflow's image optimization feature can automatically compress images uploaded to your site.
6. Utilize browser caching: Enable browser caching by configuring appropriate HTTP headers for your website's resources. This allows the browser to store and reuse frequently accessed files, reducing the need for repeated requests.
7. Consider using a content delivery network (CDN): A CDN distributes your website's static assets across various servers worldwide, enabling faster content delivery to users based on their geographical location. Webflow offers built-in CDN hosting, so ensure it is enabled to leverage this benefit.
8. Review and optimize third-party scripts: Evaluate the third-party scripts you have implemented on your site. Determine if they are essential for your website's functionality and consider removing or optimizing them if they excessively impact performance.
9. Continually monitor and improve: Use tools like Google PageSpeed Insights, Lighthouse, or Webflow's built-in performance monitoring to regularly assess your website's performance. Identify and address any new issues that arise, ensuring that your site remains optimized over time.
By implementing these steps, you can significantly reduce the number of blocking script and CSS resources, improving your website's rendering time and positively impacting your Google PageSpeed score.