[dopu]

The beeping while he types in the URL is completely unsurprising. That’s just autocomplete. Still, a neat tool. Does anyone know what triggers the call to Google whenever he expands a menu on the site? Google Analytics?

[poorlyknit]

Websites love to record interactions, however insignificant they are, in order to correlate them with conversions. I'd say Google Analytics is likely the right answer.

[yreg]

Frankly the rest is completely unsurprising as well. "Large" commercial websites tend to track user actions. Either via Google Analytics or other (sometimes even more intrusive) means.

[Roby65]

Yeah probably analytics, it tracks clicks and page changes

[roncesvalles]

It's common these days for sites to track not only which buttons you clicked but where exactly you clicked on the button using tech like Hotjar.