Content Delivery Network (Free, Pro, or Business)
Cloudflare’s content delivery network (the “CDN”) Service can be used to cache and serve web pages and websites. Unless you are an Enterprise customer, Cloudflare offers specific Paid Services (e.g., the Developer Platform, Images, and Stream) that you must use in order to serve video and other large files via the CDN. Cloudflare reserves the right to disable or limit your access to or use of the CDN, or to limit your End Users’ access to certain of your resources through the CDN, if you use or are suspected of using the CDN without such Paid Services to serve video or a disproportionate percentage of pictures, audio files, or other large files. We will use reasonable efforts to provide you with notice of such action.
In other words, if you serve HTML / CSS / JS you'll be fine. Too much of anything else and at some point they will ask you to pay.I've experienced this first-hand and they're pretty fair about it. I believe they asked me to upgrade to Enterprise once I was serving something like >10-20TB per month of images / audio files (this was several years ago though!)
> if you use or are suspected of using the CDN without such Paid Services to serve video or a disproportionate percentage of pictures, audio files, or other large files
Lots of sites have images. When exactly can I start to expect paying? Will this unspoken limit change in the future? Will I be notified when it is? As-written, it doesn't seem that way since it's opaque.
I imagine it pretty much comes down to "did this one thing that an individual is free hosting suddenly become popular or are they constantly taking the piss/running a biz off free".
They have an internal metric - I just wish it was public. How can I make a business decision on cost without this?
Support is part of the cost that is rolled into that pay-per-usage fee IMO.