I skipped Akamai, because it seems to be from the period of time, where the number of points of presence (PoPs) was used as the best indicator of the quality of a CDN. It might still be true in some of the third-world countries, but it's no longer the case in the developed world[1].
As for DNS providers: NS1 is like Fastly (the most advanced / premium), Rage4 is like KeyCDN (the best fully-featured value-for-money), and ClouDNS is like BunnyCDN (the best high-volume value-for-money). And Cloudflare is still Cloudflare.
[1] https://www.fastly.com/blog/why-having-more-pops-isnt-always...