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What is my User Agent String?

Your web browser's user agent string is:

User agent information:

Operating System:
OS Version:
Web Browser:
Browser Version:

What is a user agent (UA) string?

When a browser requests a web page, it sends a string of basic information about your platform to the website's server, including your operating system and browser version. The website may use this information to optimize the page for your platform, or to gather usage statistics.