DNS Checker

DNS Checker is a Python-based application designed to perform DNS-related operations and provide comprehensive domain information. It includes features for checking MX records, SPF, DKIM, DMARC, website status, SSL certificates, and WHOIS information.

Features

• DNS Record Checks: Retrieve and categorize MX, A, CNAME, NS, SPF, DKIM, and DMARC records.
• Website Status: Check if a website is live, its response time, and any redirects.
• SSL Certificate Info: Get SSL certificate details, including issuer and expiry.
• WHOIS Information: Retrieve domain registration details.
• Domain Grouping: Group domains by nameserver or migration complexity.
• Session Management: Save and load domain lists for later use.

Prerequisites

• Python 3.8 or higher
• Flask
• Required Python libraries (see requirements.txt)

Installation

1. Clone the repository:

   git clone https://github.com/hosthobbit/dns-checker.git
   cd dns-checker
   

2. Install dependencies:

   pip install -r requirements.txt
   

Usage

1. Start the application:

   python app.py
   

2. Access the web interface: Open your browser and navigate to http://localhost:5000.

Configuration

• Update the app.py file to modify application settings, such as the secret key for session management.
• The application uses a cache stored in a temporary directory for domain information.

API Endpoints

• /check: Categorize domains by their MX records.
• /get-mx-records: Retrieve full MX records for a domain.
• /get-domain-info: Get comprehensive DNS information for a domain.
• /save-domain-list: Save a list of domains with a name.
• /get-saved-lists: Retrieve saved domain lists.
• /load-domain-list: Load a saved domain list by name.
• /group-by-nameserver: Group domains by their nameservers.
• /group-by-complexity: Group domains by migration complexity.

Contributing

Contributions are welcome! Please fork the repository and submit a pull request.

License

This project is licensed under the MIT License. See the LICENSE file for details.