Different steps in the UI that can be measured by the WPT


There are different milestones while any web page is loading. For example:

  1. First paint (FP) - when the first byte return to the client
  2. First meaningful paint (FMP) - when the site rendered meaningful amount of data that can be presented to the user
  3. Time to interact (TTI) - when the user actually can interact with the site
  4. Visual Complete - When all the data of the screen that the user sees is rendered.

Between all these 4 options, what exactly does the WPT can measure? It is only one of the above options or all of them?

Thanks and regards,

Yes, WebPageTest measures all of those along with a bunch of other metrics.