What is WhatWeb?

WhatWeb is an open-source tool used for fingerprinting web technologies utilized by a website. It analyzes the HTTP headers, HTML content, and other aspects of a web page to identify the software and frameworks being used, such as CMS platforms, server types, JavaScript libraries, and more.

Common Use and Commands

WhatWeb is commonly used by security professionals and web developers to gather information about a target website's technology stack. To utilize WhatWeb, follow these steps:

whatweb [OPTIONS] TARGET_URL

Common options include:

• -v: Verbose mode, providing more detailed output.
• -a: Aggressive mode, increasing the intensity of detection.
• -i: Ignore IP addresses in URLs.
• -l: Limit requests to a specific URL or directory.

Example:

whatweb -v example.com

Output may include:

• Detected CMS platforms (e.g., WordPress, Joomla).
• Server information (e.g., Apache, Nginx).
• JavaScript libraries and frameworks.
• Security headers and configurations.

More Information

For additional details on WhatWeb and its usage, users can refer to the tool's documentation or visit the official website. Additionally, the source code for WhatWeb is available on GitHub: https://github.com/urbanadventurer/WhatWeb (opens in a new tab).