Need help with opensquat?
Click the “chat” button below for chat support from the developer who created it, or find similar developers for support.

About the developer

145 Stars 28 Forks GNU General Public License v3.0 191 Commits 2 Opened issues


Detection of phishing domains and domain squatting. Supports permutations such as homograph attack, typosquatting and bitsquatting.

Services available


Need anything else?

Contributors list


alt text

What is openSquat

openSquat is an opensource Intelligence (OSINT) security tool to identify cyber squatting threats to specific companies or domains, such as:

  • Phishing campaigns
  • Domain squatting
  • Typo squatting
  • Bitsquatting
  • IDN homograph attacks
  • Doppenganger domains
  • Other brand/domain related scams

It does support some key features such as:

  • Automatic newly registered domain updating (once a day)
  • Levenshtein distance to calculate word similarity
  • Fetches active and known phishing domains (Phishing Database project)
  • IDN homograph attack detection
  • Integration with VirusTotal
  • Integration with Quad9 DNS service
  • Use different levels of confidence threshold to fine tune
  • Save output into different formats (txt, JSON and CSV)
  • Can be integrated with other threat intelligence tools and DNS sinkholes

This is an opensource project so everyone's welcomed to contribute.

Screenshot / Video Demo

alt text

Check the 40 seconds Demo Video (v1.95)

Web Demo

Please check Phishy Domains for a simple version of the openSquat.

How to Install

    git clone
    pip install -r requirements.txt

Make sure you have Python 3.6+ and pip3 in your environment

How to Update

To update your current version, just type the following commands inside the openSquat directory:

    git pull
    pip install -r requirements.txt
The "pip install" is just to make sure no new libs were added with the new upgrade.

Usage Examples

Edit the "keywords.txt" with your customised keywords to hunt.

    # Lazy run with default options

# for all the options
python -h

# Search for generic terms used in phishing campaigns (can lead to false positives)
python -k generic.txt

# With DNS validation (quad9)
python --dns

# Subdomain search
python --subdomains

# Check for domains with open ports 80/443
python --portcheck

# With Phishing validation (Phishing Database)
python --phishing phish_results.txt

# Save output as JSON
python -o example.json -t json

# Save output as CSV
python -o example.csv -t csv

# Conduct a certificate transparency (ct) hunt
python --ct

# Period search - registrations from the last month (default: day)
python -p month

# Tweak confidence level. The lower values bring more false positives
# (0: very high, 1: high (default), 2: medium, 3: low, 4: very low
python -c 2

# All validations options
python --phishing phishing_domains.txt --dns --ct --subdomains --portcheck 

To Do / Roadmap

  • ~~Integration with VirusTotal (VT) for subdomains validation~~
  • Integratration with VirusTotal (VT) for malware detection
  • ~~Use certificate transparency~~
  • ~~Homograph detection~~ done
  • ~~Improve code quality from B to A grade (codacy)~~
  • ~~PEP8 compliance~~
  • Add documentation

Feature Request

To request for a new feature, create a "new issue" and describe the feature and potential use cases. If something similar already exists, you can upvote the "issue" and contribute to the discussions.



Project founder * Andre Tenreiro (LinkedInk) * [email protected]

Contributors * Please check the contributors page on GitHub

How to help

You can help this project in many ways: * Providing your time and coding skills to enhance the project * Build a decent but simple project webpage * Provide access to OSINT feeds * Open new issues with new suggestions, ideas, bug report or feature requests * Spread this project within your network * Share your story how have you been using the openSquat and what impact it brought to you * Make a project logo

We use cookies. If you continue to browse the site, you agree to the use of cookies. For more information on our use of cookies please see our Privacy Policy.