TLDR Web Dev · ARTICLES & TUTORIALS

HOW LAYOUT POSITION IMPACTS THREE BIG WEB PERFORMANCE LEVERS

performance.shopify.com7 min read

Summary from the TLDR Web Dev newsletter

Shopify published a blog post to explain the three biggest performance problems on their sites that impact Core Web Vitals metrics. The three issues are lazy loading of images visible on the first visit, asynchronous loading of CSS of elements visible upon the first visit, and not prioritizing the fetch of the largest image, affecting Largest Contentful Paint (LCP) load times. LCP is a factor in Core Web Vitals metrics, and this can affect how a website ranks on search engines like Google. This blog post explains how Shopify is combating these problems, providing code examples along the way.