Web beacon

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A '''web beacon''', also known as a '''web bug''', '''1 by 1 GIF''', '''invisible GIF''', and '''tracking pixel''', is a tiny image referenced by a line of HTML or a block of JavaScript code embedded into a web site or third party ad server to track activity.   
 
A '''web beacon''', also known as a '''web bug''', '''1 by 1 GIF''', '''invisible GIF''', and '''tracking pixel''', is a tiny image referenced by a line of HTML or a block of JavaScript code embedded into a web site or third party ad server to track activity.   
  
The image used is generally a single pixel that is delivered to the web browser with HTML instructions that keep it from affecting the web site layout.  The '''web beacon''' will typically include user information like [[cookie]]s on the HTTP headers, and web site information on the query string.   
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The image used is generally a single pixel that is delivered to the web browser with HTML instructions that keep it from affecting the web site layout.  The '''web beacon''' will typically include user information like [[cookie]]s on the [http://en.wikipedia.org/wiki/HTTP_header HTTP headers], and web site information on the [[http://en.wikipedia.org/wiki/Query_string query string]].   
  
 
'''Web beacons''' are used to collect data for [[web analytics|web site]] and [[ad analytics|ad delivery analytics]], and also specific events such as a registration or conversion.  
 
'''Web beacons''' are used to collect data for [[web analytics|web site]] and [[ad analytics|ad delivery analytics]], and also specific events such as a registration or conversion.  
  
 
[[Category:Glossary]]
 
[[Category:Glossary]]

Revision as of 15:37, 7 August 2013

A web beacon, also known as a web bug, 1 by 1 GIF, invisible GIF, and tracking pixel, is a tiny image referenced by a line of HTML or a block of JavaScript code embedded into a web site or third party ad server to track activity.

The image used is generally a single pixel that is delivered to the web browser with HTML instructions that keep it from affecting the web site layout. The web beacon will typically include user information like cookies on the HTTP headers, and web site information on the [query string].

Web beacons are used to collect data for web site and ad delivery analytics, and also specific events such as a registration or conversion.

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