This tool is used for adding DoubleClick for Advertiser macros to click-through URLs and 3rd party tracking pixels. The tools will automatically detect key_value parameters in a query string (e.x., http://www.domain.com/path?query_string), and display them below. You can then select any DCM macro to replace the value of a given paremeter. The tool will output the reformatted URL or pixel with the correct macro syntax.
DCM macros are short commands that can be inserted into a click-through URL, a redirect URL, the HTML of a custom creative, a frame header, or a Floodlight tag. The ad servers then executes the command, dynamically expanding the macro when the ad is served, when a user clicks on or views a redirect creative, or when the Floodlight tag is called.
Pixel: <img src="http://b.scorecardresearch.com/p?c1=xx&c2=yourComScoreID&c3=" />