DNSTwist Fundamentals

If you’re on the path to becoming a penetration tester, then you’ll want to learn about DNSTwist. This Python script helps you enhance your domain security. If you have a basic understanding of Python, DNS, and Linux terminal usage, then this DNSTwist Fundatmentals course will help you install and use an important tool used by cybersecurity pros.

Course Content

Module 3 Summary


How to Use DNSTwist
Online DNSTwist


How to Use DNSTwist
Module 2 Summary


DNSTwist Installation
DNSTwist and Ubuntu


DNSTwist Installation
DNSTwist and Kali Linux


DNSTwist Installation


Course Description

As its name suggests, the idea of this tool is pretty straightforward – DNSTWIST will help you in finding alternative domain names that are based on the name of your original domain.

If you are into Cybersecurity, especially Social Engineering which includes Phishing emails, then this kind of tool is a must-have because you will be able to find domains that almost look like your original domain and have the potential to become a Phishing landing page for the bad guys.

Disclaimer: The usage of any information or materials in this course is entirely at your own risk, for which me (Tino Sokic) or we (Cybrary) shall not be liable.


  • Cybersecurity terminology, for an example Phishing
  • How DNS works and the domain hierarchy
  • Linux terminal usage
  • Basic Python understanding and programming
  • Course Goals

    After this course, you are expected to have an understanding of how this tool works and how to use it to find phishing sites based on the domain of your interest.

    What is DNSTWIST?

    Essentially, DNSTWIST is a Python script which is designed to help you in your domain security. The tool was developed by Mr. Marcin Ulikowski and the beauty of this tool is in its simplicity and usefulness. It takes a domain of your choosing and then via various algorithms it generates domain names which could potentially be used for phishing, corporate espionage, typosquatting, different DNS attacks or simple house fun, but with serious repercussions which are always a possibility.

    Why Should I Care about DNSTWIST?

    There are a handful of reasons why you should care about domain names or for a tool like DNSTWIST in general, especially if you are in the Cyber Security profession and community. In my opinion, some of the reasons are:

  • Knowledge: If you like to learn new and exciting things and you are already involved with Cyber Security then you are on the right track. The thing is when you use a tool like this, you also will additionally learn about Linux and Python language and that is the real value. Expand your expertise and advance your Cyber Security career with the usage of DNSTWIST.
  • Protection: Learn to protect yourself and your organisation because DNSTWIST helps you find Phishing sites based on your domain. Also, it can help you with different domain attacks like Typosquatting which is consisted of Bitsquatting, Homoglyph, Repetition, Replacement and many more.
  • * Fun: Here is where you come to play and you have a chance to enhance the overall cybersecurity posture of your company or an organisation, and have fun along the way.

    This course is part of a Career Path:
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    Instructed by

    Tino Sokic

    I am a security professional and a systems engineer (read: geek). The combination of various IT certifications and my attendance of law school has generated one great love to Cyber Security. I have spent most of my IT career acquiring knowledge and skills in large systems as well as working with customers as an entrepreneur and CEO of my own company. I am proud of my/our website (Croatian: classroom) which is the biggest regional website that provides free tutorials and how to’s about technology. I really enjoy doing Security Awareness trainings, IT workshops, seminars, speaking at conferences and vulnerability testing. I have worked as a network and security engineer at one of the biggest Croatian Motorway companies from which I have developed my love for cyber security and raising the global security awareness. In my private time I play the guitar and sing - actually I do a gig once or twice a year at a local coffee shop or restaurant. Besides playing, I enjoy reading, recreational running, walking my little Yorkie and traveling with my wife.

    Cybrary Logo
    Certification Body
    Certificate of Completion

    Complete this entire course to earn a DNSTwist Fundamentals Certificate of Completion