SITEGROUND use to be an integrated partner with Cloudlfare where you could implement and deploy cloudlfare CDN and firewall through SITEGROUND. Recently SITEGROUND introduced their own CDN, and stoped their integration partnership with Cloudflare( You can still integrate it with Cloudlfare but not through The interface they used to have.
Just out of curiosity, has anyone used the native SITEGROUND CDN? If so, is it any good ?