I have a mobile app that needs to allow up to 100,000 concurrent users

What is the name of the domain?

What is the error number?

524

What is the error message?

a timeout occurred

What is the issue you’re encountering

We are about to launch a new app and we need to be able to support 100,000 concurrent users. How do I adjust settings in Cloudflare to allow this?

What steps have you taken to resolve the issue?

I assume Cloudflare is viewing this as a DDos attack. But I don’t know how to change settings to allow for more concurrent users.

What are the steps to reproduce the issue?

We have used AWS Device Farm service

Wonder if your origin host could support such traffic at once? If you’ve received a timeout already, sounds like that server is really bussy processing each of the load and testing requests.