Nmap is inbuilt in Kali Linux that is utilized by the organization to identify the weakness and remediate it. There are different sorts of subtleties that Nmap offers in the wake of filtering the objective. The data expressed in the manuscript can be utilized comprehend the idea of what Footprinting is, what hackers search for to Footprint, and how to shield against it. Nmap is a free and open-source utility for network disclosure and security examining. Numerous frameworks and organization heads additionally find it valuable for errands. In this paper, the study is conducted on the utilization of NMAP for the footprinting. The cloudflare server is utilized for the study. The suggestions on are provided to avoid the footprinting. The results of the study will be helpful to avoid the footprinting.