As far as I understand it it's a freemium B2B model: If you're small you probably can get away using the free tier. Then when you get bigger you outgrow the fre

As far as I understand it it's a freemium B2B model: If you're small you probably can get away using the free tier. Then when you get bigger you outgrow the free plan, either because you want specific features or because your bandwidth becomes too high. That said bandwidth really isn't that expensive, at least if you're buying it at the scale that Cloudflare does. Many people seem to be used to the bandwidth prices of the large cloud hosters, which are really insane and have been marked up by a large multiplier to disincentivize people to transfer their data elsewhere for processing.