Which is the cheapest paid traffic source for CPA marketing?

[Graybeard]

90% to 20% bots --useless traffic pops

that's $0.2265 cents per visit NET
If 1:50 converted that would be fine --they did not
intent or page load speed --IDK

 

[Graybeard]

pops are a lot more expensive when you only count the valid hits ... cheap pops are very, very trashy --but they are cheap

 

[Graybeard]

this is from a test I did yesterday with 700 raw popunders and then filtered out most of the bots and scrapers

those are useless but i wanted to prove to myself why there was not any action OMFG lolz

this is interesting and contradicts what i said above somewhat

Average time on page WTF --strange google