Information About Your Browser

Your browser supplies the following information to sites about itself. This is not a comprehensive list of all information available to the page.

Data from HTTP Headers

Your browser's request includes the following data:

JavaScript Browser Tests

navigator object properties

Scripts in web pages can check various properties of the navigator object. This information can be blocked or overridden by the user.

DOM object detection: objects/methods/collections

As a more reliable indication of a browser's capabilities, scripts can check for the existence of various objects and properties:

Copyright © 2017 Jefferson Scher. Updated 9/18/2017.