I've been dumping affiliate programs lately because of the abysmal rate of cookie tracking and ever decreasing affiliate income vs. the PPC steady income rate.
This isn't terribly accurate as my script doesn't know if a cookie was accepted until the second page view. However, out of 3489 visitors in a sample I just took, that looked at 2 or more pages, the cookies were disabled by 22% of the returning visitors.
5926 VisitorsIt doesn't take a rocket scientist to figure out that 22% of disabled cookies make affiliate programs relatively unattractive as almost 1/4 of the returning visitors wouldn't give me credit for anything they buy.
3489 Visitors > 1 Page View
2710 Cookies Enabled
779 Cookies Rejected
Out of the total visitors it's only 13%, but we don't know how many of the 2437 visitors that only viewed a single page had cookies enabled, but my suspicion is it's closer to 20%.
Taking into account that these numbers are POST bot filtering, so all of the bots that were blocked or banned didn't get included, this leads to two possible conclusions:
1) a lot more people aren't accepting cookies than previously thought or
2) there's a lot more low impact stealth bot activity than even I suspected.
Which is the right answer?
I'm sure the truth lies somewhere in the middle.