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User agent

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(Redirected from User agents) Software acting on behalf of a user Not to be confused with User-Agent header.

On the Web, a user agent is a software agent responsible for retrieving and facilitating end-user interaction with Web content. This includes all web browsers, such as Google Chrome and Safari, some email clients, standalone download managers like youtube-dl, and other command-line utilities like cURL.

The user agent is the client in a client–server system. The HTTP User-Agent header is intended to clearly identify the agent to the server. However, this header can be omitted or spoofed, so some websites use other detection methods.

References

  1. "W3C Definition of User Agent". www.w3.org. 2011-06-16. Retrieved 2018-10-20.
  2. ^ "User agent". MDN Web Docs. 8 July 2024.


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