Summary To optimize page load speeds for returning users, it is crucial to configure your web server for efficient HTTP caching. This involves setting appropriate HTTP headers, implementing ETag, enabling compression, and using Content Delivery Network (CDN). There are also some bonus techniques like Lazy Loading and Browser Cache Validation

Summary Minimizing unused CSS and JavaScript can significantly speed up your web page rendering, and improve your Core Web Vitals scores. To achieve this, various methods can be applied, such as using code coverage tools, removing unused code manually or with tools like PurifyCSS, and tree shaking. Working on minimizing

Summary To optimize Largest Contentful Paint (LCP), it's ideal to use next-gen formats like WebP, AVIF or JPEG XR which offer superior compression and quality characteristics. The level of compression should be adjusted to balance visual quality and file size. A lower LCP time can significantly improve the

Summary Mobile performance in Core Web Vitals relies heavily on factors such as Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). By optimizing these elements, you can enhance your website's performance for mobile SEO. Various strategies can help achieve this, like server response

Summary Identifying and optimizing long-running JavaScript tasks is critical for reducing First Input Delay (FID) on your website. This involves using performance diagnostics tools to spot inefficient codes, breaking up long tasks, deferring and minimizing JavaScript use, and using web workers for offthread computation. Following this guide will help you

Summary Using a Content Delivery Network (CDN) can significantly improve Core Web Vitals by reducing server latency, which influences Largest Contentful Paint (LCP), First Input Delay (FID) and Cumulative Layout Shift (CLS). Correct configuration in terms of caching, server location selection, content compression, and HTTP/2 adoption is vital in

Summary The Critical Rendering Path is the sequence of steps the browser goes through to convert the HTML, CSS, and JavaScript into pixels on the screen. Optimizing the Critical Rendering Path is essential to improve Core Web Vitals metrics such as First Contentful Paint (FCP), Largest Contentful Paint (LCP), and

Summary To improve browser caching and reduce load times for repeat visitors, certain HTTP caching headers are key. The major headers include `Cache-Control`, `Expires`, `Last-Modified`, `ETag`, and `Pragma`. By properly using these headers, you can significantly improve user experience by decreasing load times. Understanding HTTP Caching Headers `Cache-Control` Header The

Summary The Largest Contentful Paint (LCP) metric measures how quickly the largest content element visible in the viewport loads. To reduce LCP and enhance user experience, you should optimize server response times, implement efficient asset delivery, and minimize render-blocking resources. Following a variety of optimization techniques may help to achieve

Summary The First Contentful Paint (FCP) is a performance metric that measures how long it takes for the browser to render the first piece of DOM content after a user navigates to your page. To minimize the FCP time and enhance page speed, several best practices such as asset preloading,