%% date:: [[2023-04-30]] parent:: [[Frontend performance testing]] %% # [[Google Web Vitals]] [site](https://web.dev/vitals/) [[Google]] Web Vitals are a list of [[Frontend performance testing|frontend performance]] metrics recommended by Google for measuring user experience. Web Vitals are made up of [[Core Web Vitals]] as well as some other metrics that weren't considered field-measurable or user-centric enough to make it to that subset. <iframe width="560" height="315" src="https://www.youtube.com/embed/uERQXeWVV_E" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> ## Metrics - Loading - [[Largest Contentful Paint (LCP)]] (Core) - [[First Contentful Paint (FCP)]] - [[Time to First Byte (TTFB)]] - Interactivity - [[First Input Delay (FID)]] (Core) - [[Total Blocking Time (TBT)]] - [[Time to Interactive (TTI)]] - Visual stability - [[Cumulative Layout Shift (CLS)]]