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A script to check if a domain/subdomain is protected by HSTS Preloading
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README.md
checker.py

README.md

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   / / / / ___/_  __/ ___/   / __ \________  / /___  ____ _____/ /  / ____/ /_  ___  _____/ /_____  _____
  / /_/ /\__ \ / /  \__ \   / /_/ / ___/ _ \/ / __ \/ __ `/ __  /  / /   / __ \/ _ \/ ___/ //_/ _ \/ ___/
 / __  /___/ // /  ___/ /  / ____/ /  /  __/ / /_/ / /_/ / /_/ /  / /___/ / / /  __/ /__/ ,< /  __/ /    
/_/ /_//____//_/  /____/  /_/   /_/   \___/_/\____/\__,_/\__,_/   \____/_/ /_/\___/\___/_/|_|\___/_/     



-==  What is this?  ==-
An HSTS preloading list is a list that tells your browser which sites to only communicate securely with.
This is to avoid a scenario where an attacker manipulates the initial HTTP request and either forwards the
traffic to a malicious server or monitors the cookies sent with the request.

This small script will allow you to find out if a subdomain is protected via HSTS Preloading.
You can’t perform that action at this time.