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Q:What is CPC?
Ans:The cost-per-click (CPC) is the amount you earn each time a user clicks on your ad. The CPC for any ad is determined by the advertiser; some advertisers may be willing to pay more per click than others, depending on what they're advertising
How to Increase Adsense CPC?
it`s very easy i will show you step by step and you get 1$-7$ per ads click
go to keywordspy.com and follow the bellow picture step
and then click search choose The Highest CPC and click on it after page open you can see the url
copy the url
check domain and past your URL and search again. In this page you can see the URL Average Cost/Click
example below in this pic $2.49
login you Adsense Account and click Allow/Block URL Past url and click Block URL then you can click Allowed