Page speed refers to how quickly a web page loads its content and becomes interactive for users. It encompasses multiple metrics including Time to First Byte (TTFB), First Contentful Paint (FCP), Largest Contentful Paint (LCP), and Time to Interactive (TTI). Google has confirmed that page speed is a ranking factor for both desktop and mobile search results.
Page speed is influenced by numerous factors: server response time, file sizes (HTML, CSS, JavaScript, images), number of HTTP requests, caching configuration, CDN usage, and code optimization. Each factor contributes to the overall loading experience, and improvements in any area can have a measurable impact. Web performance books on Amazon cover optimization techniques.
For URL shortening services, page speed matters in two contexts. First, the redirect speed (how quickly the service processes a short URL click and sends the redirect response) directly impacts user experience. Second, the loading speed of the service's own content pages (homepage, glossary, articles) affects SEO rankings and user satisfaction.
Google's PageSpeed Insights and Lighthouse tools provide detailed performance audits with specific recommendations for improvement. Core Web Vitals, a subset of page speed metrics, have become a significant ranking signal. Core Web Vitals books on Amazon discuss measurement and optimization.