Page Experience, the new ranking signal, combines Core Web Vitals with existing user experience signals to improve the evaluation of the overall experience provided by a page.
No Intrusive interstitials
HTTPS-security
Safe-browsing
Mobile-friendliness
Introduced in May 2020, Core Web Vitals are a set of metrics related to speed, responsiveness, and visual stability of a website. Core Web Vitals are the subset of Web Vitals that apply to all web pages and should be measured by all site owners.
Largest Contentful Paint (LCP)
First Input Delay (FID)
Cumulative Layout Shift (CLS)
Fast Slow server response times
Check Render-blocking JavaScript and CSS
Improve Resource load times
Examine Client-side rendering
Reduce the impact of third-party code
Reduce JavaScript execution time
Minimize main thread work
Keep request counts low and transfer sizes small
Always include size attributes on your images and video elements
Never insert content above existing content
Prefer transform animations to animations of properties
Google PageSpeed Insights
Search Console Core Web Vitals report
Lighthouse