How quickly a web page loads and becomes usable for a visitor.
Page speed refers to how quickly a webpage fully loads and becomes interactive for a user. It is measured using metrics like Time to First Byte (TTFB), First Contentful Paint (FCP), and the Core Web Vitals metrics (LCP, INP, CLS).
Page speed matters for two reasons: ranking and conversion. Google has confirmed page speed is a ranking signal. But even beyond rankings, slower pages produce worse user experiences — higher bounce rates, lower engagement, and fewer conversions. For B2B companies where a single converted visitor may be worth thousands of dollars, page speed improvements have measurable commercial impact.
Common causes of slow pages include: unoptimized images (large file sizes, missing lazy loading), render-blocking resources (JavaScript that must load before the page renders), excessive third-party scripts (analytics, heatmaps, chatbots, ad tags), and poor server response times.
Google PageSpeed Insights and Lighthouse provide free speed audits with specific recommendations. Real User Monitoring (RUM) data from Google Search Console's Core Web Vitals report shows how real users experience your site across different devices and connection speeds.
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