Computer Science
How do websites track us?
Computing Safety & Ethics
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Answer
The different types of information used by websites to track us online are as follows:
- IP Address — When we share our IP address on the network with other devices, a website can determine our geographical location.
- Cookies and Tracking Scripts — They can identify and track our browsing activity across a website.
- HTTP Referrer — When a link to an outside website on a webpage is clicked, then the linked website will get opened and internally our information will be provided to the linked website.
- Super Cookies — Super Cookies are persistent cookies that come back even after we delete them. They store cookie data at multiple places, for example, in Flash cookies, Silverlight storage, our browsing history and HTML5 local storage etc.
- User Agent — It tells websites our browser and operating system, providing another piece of data that can be stored and used to target ads.
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