Web beacon

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 HTMLHTML (Hypertext Markup Language)A set of codes called markup tags in a plain text file that determine what…//read more  or a block of JavaScript code embedded into a web site or third party ad serverAd serverAn ad server is a web server dedicated to the delivery of advertisement. This…//read more  to track activity.

The image used is generally a single pixelPixel(also called Beacon or Web Beacon) – An HTML object or code that transmits…//read more  that is delivered to the web browserBrowserA software program that can request, download, cache and display documents…//read more  with HTML instructions that keep it from affecting the web site layout. The web beacon will typically include user information like cookies on the HTTPHTTP (Hyper-Text Transfer Protocol)The format most commonly used to transfer documents on the World Wide Web.//read more  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.