The barebones website doesn't discuss _anything_ about which data processors might end up with the ability to connect your IP (or even better markers) with access patterns to that API. The service didn't actively hide Cloudflare but it also didn't document it. I wouldn't know how many other services are in use right now that I didn't stumble over, or how many there will be at any time.
For a service that (if actually useful, which this isn't, so I expect it to flounder and therefore not do any actual harm) could be dangerous to use in some regions of the world, that seems reckless, as if "uhoh, this could be dangerous" was never even a consideration.
For a service that (if actually useful, which this isn't, so I expect it to flounder and therefore not do any actual harm) could be dangerous to use in some regions of the world, that seems reckless, as if "uhoh, this could be dangerous" was never even a consideration.