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I"m just curious if Selenium "identifies" itself. This is besides easy-to-detect practices such as clicking before the page is loaded, 5 seconds between every click, etc. I'm wondering if there is an inherent property.

According to the WebDriver spec I found word of this interface (which may be the answer), but I don't seem to see any similar interface in the source code for Selenium etc.

  1. Interface

    partial interface Navigator {

       readonly attribute boolean webdriver;

    };

The webdriver IDL attribute of the Navigator interface must return the value of the webdriver-active flag, which is initially false.

This property allows websites to determine that the user agent is under control by WebDriver, and can be used to help mitigate denial-of-service attacks.

Nathan Chen
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  • I don't know what Selenium is, but if it's a headless browser or something similar, it might have a user-agent. – Carcigenicate Feb 16 '17 at 23:00
  • I am not sure that defending against selemium will help you very much. Any average programmer with a c compiler and socket IO can send HTTP requests to your service and send which ever header information they want. They can send AJAX requests, you name it. It gets a little harder with https, but not a lot. – Mike Wodarczyk Feb 16 '17 at 23:16
  • Web site could know so much about the current user from browser,OS,Screen Size, Ip, and so on. – Gaj Julije Mar 27 '21 at 11:09

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