Your phone can report app usage time — can your browser report web browsing time and visit counts? Yes, with the "Internet Costs a Lot" (网费很贵) browser time-tracking extension.
It shows how long you spend on each site, analyzes your browsing habits, and can even cap daily or per-visit time on a site. A whitelist excludes chosen sites from tracking and limits.
All data stays local — nothing is uploaded — so it's safe.
To install: 1) go to chrome://extensions/; 2) enable Developer mode; 3) drag the .crx file onto the page to install automatically.