Find Real IP address of Backend Server behind CloudFlare

Project CrimeFlare is a large database collecting sensitive data with client using CloudFlare as a reverse proxy. One of the most important info is Real-IP of backend server behind CloudFlare.

Many clients (System Administrators) think they are hided, protected by behind CloudFlare and hackers cannot know their backend servers to attack, so they ignore many of the best pratices for protecting their backend server.

More info about this CrimeFlare here

Get the Real-IP of backend server here

I tried to verify with many websites and CrimeFlare work like a charm, for example with (

You can do some basic checks to make sure (maybe) they're using CF

Verify this IP

This is exactly IP of

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