Core Web Vitals

Core Web Vitals: What do the individual KPIs mean?
For some time now, the Google PageSpeed analysis has also included factors for evaluating the user experience (UX), which are included in the Google PageSpeed Score and have thus made optimization even more difficult. Measurements are always mobile.

The following factors are measured:

Cumulative Layout Shift (CLS)
Layout shifts when loading the page (jerking): Frequent when, for example, advertising banners or images are loaded and no fixed dimensions are defined in the code. Cookie banners are also sometimes triggers for shifts in the layout of the page. The value must not exceed 0.1.

Largest Contentful Paint (LCP)
LCP measures when the largest content element in the display area is rendered on the screen. The LCP may last a maximum of 2.5 seconds.

First Input Delay (FID)
The FID measures how long a website takes to respond to the first user interaction. This evaluates the responsiveness of a website.

Christian Schreiber
Christian Schreiber
I have been working as an SEO consultant with a technical focus since 2009. As a qualified business IT specialist and web developer, I support marketing specialists and programmers from start-ups, medium-sized companies, corporations and agencies in the implementation of load time optimisation for high-performance websites.

Website-Ladezeit, Google PageSpeed Score und Web Vitals professionell optimieren lassen