A CDE Definition
See invisible GIF.
A single-pixel GIF file set to a transparent status and thus invisible. Also known as a "transparent GIF," "1-by-1 GIF" and "clear GIF," it is is used as a tracking mechanism for Web pages to monitor a user's activity. See Web bug and GIF.
Before/After Your Search Term
|1st-party cookie||2-D bar code|
|1x CD-ROM||2-D printer|
|1x DVD-ROM||2-D transistor|
Terms By Topic
Click any of the following categories for a list of fundamental terms.