SNI connection tester

The SNI connection tester is a Python-based tool for analyzing and gathering detailed information about an SNI (Server Name Indication) host. It performs a variety of tests, including DNS resolution, TCP connection testing, HTTPS request validation, SSL certificate analysis, and website metadata extraction.

Features

• TCP connection test: Checks if a TCP connection can be established to the host on port 443.
• DNS lookup: Resolves the domain to its IP address and fetches DNS A records.
• SSL certificate analysis: Fetches and logs details about the SSL/TLS certificate, including issuer and validity.
• HTTP request analysis: Logs HTTP request and response headers.
• Website metadata extraction: Retrieves and logs the page title, meta description, and content length.
• Detailed logging: All test results are logged to a log.txt file for later reference.

Requirements

• Python 3.6+
• Python packages:
  • requests
  • colorama
  • beautifulsoup4
  • dnspython

Installation

1. Clone or download this repository.
2. Install the required dependencies using pip:

   pip install requests colorama beautifulsoup4 dnspython