In the digital world, speed is money. Amazon found that every 100ms of delay cost them 1% in sales. Google discovered that an extra 0.5 seconds in search generation dropped traffic by 20%. If your website is slow, users leave. And because Google wants happy users, they penalize slow websites in search rankings. But how do you know if your site is "slow"? It might load fast on your shiny MacBook Pro, but crawl on a cheap Android phone using 3G. PageSpeed Insights (PSI) is Google's official judge, jury, and executioner for website performance. It tells you exactly how Google views your site's speed, assigns you a score from 0 to 100, and gives you a checklist to fix it. This guide explains exactly how to read this report, the difference between the "Score" and "Real World Data," and how to actually improve your results. What Is PageSpeed Insights? PageSpeed Insights is a free diagnostic tool created by Google. It analyzes the content of a web page an...