Does those site have good revenue from Adsense

i think no

 

If you would like to know how much could you (they) make on one website. it could be calculated from many way ad factors. Giving us more information can lead to the more accurate estimated income you could get. only the url and alexa rank can not mean anything much. hope you understand.

 

one way of earnings

 

yes adsense revenue help lot in increasing adsense revenue