Website owners should rely on metrics like order or calls count rather than try to win against botnets (though I know the case when an ad network was hiring peo

Website owners should rely on metrics like order or calls count rather than try to win against botnets (though I know the case when an ad network was hiring people to make calls to a client (a realty company) to make better statistics for their ad campaign). Of course bots can simulate visiting different websites and even logging into them if that is profitable.