Google Lighthouse audits exactly one URL per run, whether you use Chrome DevTools, PageSpeed Insights or the CLI. Your homepage is usually your fastest, most hand-tuned page, so a good homepage score says little about the blog posts, product pages and landing pages where most visitors actually arrive. To know how your site really performs, run Lighthouse on every page, on mobile and desktop, and group the results by template so one fix covers many pages.
Core Web Vitals for e-commerce: the typical LCP, CLS and INP problems on category, product and checkout pages, and how to prioritize fixes by template.
A good client performance report gives a plain-English summary, trends, the top fixes and their impact. Here is how agencies structure a monthly report.
The Lighthouse performance score is a weighted average of five metric scores: TBT 30%, LCP 25%, CLS 25%, FCP 10% and Speed Index 10%. Here is how it works.
Lighthouse scores vary because network, CPU, server time, ads and third-party scripts differ on every run. Learn what causes it and how to compare fairly.