SNI Checker

This Python script checks the validity of Server Name Indication (SNI) hosts by establishing an SSL connection and measuring their latency. It reads a list of SNIs from a file, tests their connectivity, and saves the working SNIs to a separate file.

Features

• Reads SNIs from host.txt
• Checks if an SNI is valid using SSL
• Measures latency for working SNIs
• Saves valid SNIs to working_sni.txt

Requirements

• Python 3

Installation

1. Clone the repository:

   git clone https://github.com/Sky-Mansion/sni-check.git
   cd sni-check

2. Ensure you have Python installed.

Usage

1. Add a list of SNIs (one per line) in host.txt.
2. Run the script:

   python hostck.py

3. The working SNIs will be saved in working_sni_zoom.txt.

File Structure

📂 sni-check
├── host.txt             # Input file containing SNIs
├── working_sni.txt      # Output file with working SNIs
├── hostck.py            # Main script
├── README.md            # Documentation

Example

Testing SNI: example.com...
[✔] example.com works! Latency: 120.5ms
[✘] invalid-sni.com failed.

✅ Working SNIs saved to working_sni_zoom.txt

License

This project is licensed under the MIT License.

Contributing

Feel free to submit issues or pull requests to improve the script!

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Made with ❤️ by dilshan