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Asked: 2026-05-16T16:29:03+00:00

How and from where websites like this http://www.yougetsignal.com/tools/web-sites-on-web-server/ are getting this information from? How

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How and from where websites like this http://www.yougetsignal.com/tools/web-sites-on-web-server/ are getting this information from? How can I develop such tool?

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1 Answer

  1. Editorial Team

    You can use nslookup on the IP. Reverse DNS is defined with the .in-addr.arpa domain.

    Example:

    nslookup somedomain.com

    yields 123.21.2.3, and then you do:

    nslookup 123.21.2.3

    this will ask 3.2.21.123.in-addr.arpa and yield the domain name (if there is one defined for reverse DNS).

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