AI Summary What is a website speed test? A website speed test measures how quickly a web page loads, how stable it is while loading, and how responsive it is to interaction. It is not an internet speed test. It evaluates how a specific page performs for the people visiting it. Modern speed tests produce…
AI Summary What is Largest Contentful Paint? Largest Contentful Paint, or LCP, is the Core Web Vital that measures how long it takes for the largest visible element on a page to render, usually a hero image, a large heading, or a block of text. It answers the visitor’s first question: when can I see…
AI Summary What is Cumulative Layout Shift? Cumulative Layout Shift, or CLS, is the Core Web Vital that measures visual stability, specifically how much the visible content of a page moves around unexpectedly while it loads. It is the metric behind the frustrating experience of going to tap something and having the page jump at…
AI Summary What is PageSpeed Insights? PageSpeed Insights is Google’s free page performance tool. It is the most important speed tool for SEO because it shows your real-user Core Web Vitals from the Chrome User Experience Report alongside lab diagnostics that tell you what to fix. What it is and who it is for: Built…
AI Summary What is this guide? A practical, prioritized walkthrough of how to actually improve page speed, organized by impact: server response time, render-blocking resources, image optimization, JavaScript reduction, and caching. It maps each fix to the Core Web Vital it improves. What it is and who it is for: Built for site owners and…
AI Summary What is GTmetrix? GTmetrix is a page performance tool that combines Google Lighthouse data with its own structured grading system and a detailed request waterfall. It is built for repeatable lab testing and ongoing performance monitoring, which makes it the tool of choice for verifying fixes and catching regressions. What it is and…
AI Summary What are Core Web Vitals? Core Web Vitals are the three metrics Google uses to measure real-world page experience: Largest Contentful Paint, which measures loading; Cumulative Layout Shift, which measures visual stability; and Interaction to Next Paint, which measures responsiveness. Together they quantify how a page feels to a real visitor. What it…
AI Summary What is the Pingdom speed test? Pingdom is a website speed testing tool owned by SolarWinds that measures load time, page size, request count, and performance grade from server locations around the world. It is the fastest and cleanest speed testing tool available, designed to give you a readable snapshot of page performance…