[hamed]

Well I don't use CDN. There are advantages as well as disadvantages of using CDN. For examples I prefer images load from my own domain that way there is a better change my images rank in Google image search.

But having a good hosting provider helps a lot. Also having a server near your audience helps a lot too.

In my opinion, using CDN is wrong.
and I agree with your opinion.
look . Web speed is very important for a webmaster. For example, a visitor in Google opens several sites and if first site opened he close other sites . and other sites lose some visitors and seo rank .
cloudflare set 60 site in a dns and ip(host) and its bad for website speed . its only my opinion but CDN and cloudflare for USA and Canada and country's near america is good