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R3con1z3r – Lightweight Web Information Gathering Tool

R3con1z3r is a simple and lightweight web information gathering tool with all features written in Python. With this tool you can perform open source intelligence (OSINT) web-based footprinting in an easy and quick way.

R3con1z3r: Lightweight Web Information Gathering Tool

R3con1z3r is a passive reconnaissance tool with built-in functionalities that can help you gather open whois/dns web information listed below.


  • Python 2.x/3.x
  • All from requirements.txt

Supported platforms:


  • HTTP header flag,
  • Traceroute,
  • Whois Footprinting,
  • DNS information,
  • Site on same server,
  • Nmap port scanner,
  • Reverse Target and
  • Webpage hyperlinks


Clone it from the GitHub repo:

$ git clone

Navigate to the working directory and install python modules (requirements.txt):

$ cd r3con1z3r
$ pip install -r requirements.txt

Make it executable:

$ chmod +x


To lunch it, run the following:

$ python3 []
R3con1z3r usage example

Report will be saved in .html file:

R3con1z3r report example
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Updated: February 15, 2019 — 1:30 am

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