how will cheater affiliate network will steal affiliate marketer,s traffic then?
Huh? is that a question? I have no idea what you are on about.
As for the other issues. This is NOT unique to CPA networks or offers. A 1x1 pixel/img is loaded on the thank you page. This img is actually a script which then reads the cookie. This is no different than other aff programs such as CJ or Linkshare or 99% of in house aff programs. The limitations are inherent in the system. Cookies aren't 100% accurate 100% of the time. And, as Krongel says, those limitations are compensated for in payouts.
lets dispell 2 myths right here.
1) That there is a 'Better' way of tracking this shit.
There isn't, ok their might be, but people much much smarter than you and I have been working hard on these issues for many years and this is the best solution anyone has been able to come up with.
If you can come up with something better, let me know, cause if it works, we're gonna be RICH! that is IF it works and we can get all the browser makers to comply...
Pixels and cookies are currently the most accurate and consistent way of tracking this shit. Sorry, it's a fact.
2) That advertisers and networks are 'stealing' my sales. Yawn... newbie aff's have been complaining about this since the dawn of the net and amazons 'associate' program back in 1997. Any network worth it's salt does its best to compensate for all of the factors and make sure everyone gets paid. That is why we use third party systems, as sucky as they may be, cause it takes the liability and trust out of the advertiser, network and affiliates hands and into that of a trusted third party.
No one is stealing your flippin leads. Any super affiliate will tell you that it all comes out in the wash when you are working with trusted companies.
BTW:
If you drive 100,000 uniques via ppc to an offer with a payout of $10 bucks, get a 30% conversion rate and even 5% of those conversions cannot be accounted for then your leaving $15K on the table [I think my math is correct? 100k x .30 x .05 = $15,000.00 ].
Dunno what campaign you have that converts at 30% and has a $10 payout... but i'd like to sign up! but that is likely why it has a $10 payout instead of $9