Hi Guys. Yesterday I made a split test on my campaign with all same: traffic, offer, landers. Only one difference - servers.
GEO - somewhere in South-East Asia.
Server 1: Singapore located VPS
Server 2: Netherlands located VPS + CDN cloudflare (free plan)
Results are below:

It was 70/30 test but statistical significance is 100% according to calculator, so look at last 4 columns.
I really don't know what to say. Just WTF? Maybe just free cloudflare plan sucs?
Which CDN could you recommend for another split test? Just want to get out what is going wrong
How about testing Singapore VPS + Cloudflare?
Sorry guys, false test... On 2nd page JS was broken. I'm making new test right now, will let you know about results.
Anyway this test shows difference between LP with brand+model callout and without those.