Achieving a perfect 100% score on Google Page Speed Insights is challenging but not impossible. It requires optimizing various aspects of your website’s performance. While it may not always be feasible to attain a perfect score due to external factors or limitations, implementing the following best practices should help you improve your score significantly:

1. Enable Caching: Leverage browser caching by setting cache-control headers and expires headers to allow browsers to store static resources. This reduces the need for repeated requests for the same content.
2. Optimize Images: Compress and resize images to minimize their file size without compromising quality. Use modern image formats like WebP and serve responsive images based on the device’s screen size.
3. Minify and Combine Files: Minify your HTML, CSS, and JavaScript files by removing unnecessary characters, comments, and whitespaces. Also, combine multiple CSS and JavaScript files into a single file to reduce the number of requests.
4. Use a Content Delivery Network (CDN): Implement a CDN to distribute your website’s assets across multiple servers worldwide. This reduces latency and improves load times for users in different geographical locations.
5. Eliminate Render-Blocking Resources: Optimize the critical rendering path by eliminating or deferring render-blocking resources. Move JavaScript files to the bottom of the page or use the async or defer attributes to prevent them from blocking page rendering.
6. Enable Gzip Compression: Enable Gzip compression on your web server to reduce the size of your website’s files during transmission. This significantly reduces the time required to transfer the files to the user’s browser.
7. Minimize Redirects: Minimize the number of redirects on your website as they add extra HTTP requests and increase page load times. Redirects should be used sparingly and only when necessary.
8. Optimize Server Response Time: Ensure that your web server responds quickly to requests. This can be achieved by optimizing your server’s configuration, database queries, and backend code.
9. Prioritize Above-the-Fold Content: Load and render above-the-fold content quickly to improve the perceived performance of your website. Lazy loading techniques can be used to defer the loading of below-the-fold content until it’s needed.
10. Leverage Browser Caching: Set appropriate caching headers for static resources like CSS, JavaScript, and images to enable browsers to cache them. This reduces the need for repeated downloads on subsequent visits.

Remember, while achieving a perfect score is desirable, it’s more important to focus on improving the actual user experience. Page Speed Insights is just one tool, and real-world performance on different devices and network conditions can vary. Use the recommendations provided by PageSpeed Insights as guidelines to enhance your website’s performance, but always prioritize user experience and business objectives.

Web illustrations by Storyset