Web bug

Web beacons (English Tracking Bug or Web Bug, also German web bug, tracking pixel, IVW Pixel ivwbox, pixel tag, pixel method, one-pixel image, 1 × 1 gif, clear gif or web beacon ) are small graphics in HTML e- mail or web site that enable log-file recording and a Logdateianalyse, which are often used for statistical analysis for the online marketing.

• 2.1 antidote

Technology

The mostly 1 × 1 pixel measured images are often created also transparent or in the color of the background, so they are not visible. When a document is opened, this little picture is loaded from a server on the Internet, where the download will be registered there. Thus, the operator of the server can see when and how many users these Web beacons anforderten or whether and when an email is opened or a website is visited.

Private operators of a website can get information about visitors through the inclusion of a pixel-code without access to the log files of the server. Thus on numerous websites counter ( Counter ), which are based on the same principle but with each new visitor a new " image ", ie increased by one number, present.

Usually the function is implemented by a JavaScript call, yet the term Web beacons will continue to be used.

Example

Example, the pixel-code from Piwik, as it is installed in an HTML source. Is used in the browser javascript enabled, the web beacon is used instead of the Javascript codes to still register the user's access.

Web log analysis software Transparency (graphic) Geotargeting Session-ID