Technical SEO
Website Speed Optimization
Website speed optimization encompasses all technical practices aimed at reducing page load times and improving Core Web Vitals scores, including image compression, CDN implementation, browser caching, code minification, server response time reduction, lazy loading, critical CSS inlining, and third-party script management. Google has confirmed page speed as a ranking factor since 2010.
Website speed is measured using Google PageSpeed Insights, Lighthouse, GTmetrix, WebPageTest, and real-user metrics from Google Search Console's Core Web Vitals report. Ahrefs Site Audit and SEMrush Site Audit flag specific speed-related technical issues, while Chrome DevTools provides deep diagnostic waterfall analysis.
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Related Terms
Technical SEO
CDN (Content Delivery Network)
Refers to the network technology that enables data to be transmitted over servers in certain locations.
Technical SEO
Critical Rendering Path
Refers to a specific set of steps that must be completed before any page content can be shown to a visitor.
Measurement
PageSpeed Insights
A Google tool that provides information about page opening speeds and user experience metrics.
Measurement
TTFB (Time to First Byte)
Refers to the time between the browser requesting a page and when it receives the first byte of information from the server.