A web counter is basically a tool that tracks and shows how many people have visited your website.
Some are visible (showing “you are visitor #12345”), while others work silently in the background to collect detailed stats.
There are two main types:
Simple hit counters (like hitwebcounter.com)
Full analytics tools (like Google Analytics or Matomo)
I personally run a free electricity bill checking site for Pakistan — billpitc.com.pk — and I use a mix of both:
A visible counter to show public stats
And backend analytics to track traffic patterns
If you just want to show the visitor count on your homepage, go with something like Hitwebcounter or Freecounterstat.
For deeper insights, Google Analytics is still king.