How Google measure website bounce rate ?

[Max84]

Bounce rate is a SEO signal, but how Google measures it ?

There is any explanation about this ?

Does Google uses Analytics ? Maybe time between 2 clics in search results ?

Thanks

[Ben_Alvord]

The bounce rate in Google Analytics is basically the percentage of visitors to your site which only visited one page on your site.  If a user only visits a single URL, but then triggers a custom event or a virtual pageview, they will no longer be considered a 'bounce'.

There are other analytics tools which no longer count visitors as a bounce if the visitor stays on the landing page for X number of seconds, but Google does not do that (although you could setup this behavior using some custom scripting).

[Solvari]

Google indeed measures the time between clicks on different search results. So if you click an a page on a SERP and return back to that SERP within a small amount of time, Google might assume you have not found what you were looking for on that page. This would be considered as a negative SEO signal.