For comparison, that's just about half the amount cdnjs delivers every day (on average) https://github.com/cdnjs/cf-stats/blob/master/2019/cdnjs_Aug...

Just waiting for the Cloudflare CEO who lurks around to pop in here and offer it for free.

Not sure about that. Especially if it all goes to one ip address where they have peering arrangements. It could cause some load there but the traffic will be essentially free for cloudflare. And some good publicity for Cloudflare.

Correct; Cloudflare doesn't cache large asset files (I think anything more than 2MB?) by default. It's not that kind of CDN... at least, not for free it's not.

Of course, you can trick Cloudflare into caching your large media assets using some funky Page Rules... but I wouldn't suggest it. Mostly just for moral reasons. If you have that much traffic, you should be making some money off it and then paying Cloudflare with it!

Good point. I guess for free plans they only cache up to 512mb files [1]. It does seem you can set page rules to cache large files by extension [2].

1. https://support.cloudflare.com/hc/en-us/articles/200172516 2. https://support.cloudflare.com/hc/en-us/articles/11500015027...

512mb: https://support.cloudflare.com/hc/en-us/articles/200172516