Domain Redirection Checker

A Bash script to check the final redirection of domains from a list of URLs. The script reads URLs from a file, follows their redirections, and outputs the final domain names. If interrupted, the script can resume from the last processed URL.

Requirements

• curl command-line tool.

Usage

1. Prepare the URLs list:

   Create a file named domains.txt with one domain/URL per line.

   If the file does not exist, you will be prompted to provide the path to another file.

2. Run the script:

   chmod +x redirect_checker.sh
   ./redirect_checker.sh

   Note: The maximum timeout for the curl command is set to 5 seconds by default. You can change this value by modifying the script (look for the --max-time option in the curl command).

3. View the results:

   Results will be displayed in the terminal and saved to output.txt in the format:

   original_url => final_domain_name
   

Example Output

google.com => www.google.com
facebook.com => www.facebook.com
amazon.com => www.amazon.com
twitter.com => twitter.com
wikipedia.org => www.wikipedia.org
youtube.com => www.youtube.com
linkedin.com => www.linkedin.com
instagram.com => www.instagram.com
reddit.com => www.reddit.com
netflix.com => netflix.com
microsoft.com => www.microsoft.com
apple.com => www.apple.com

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License

This project is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported.

See LICENSE for details.