Decoding IMG tag & Anatomy of a Click Tracker

<IMGSRC="http://ad.doubleclick.net/ad/N963.sdtestsitesix.com/B1898482;sz=1x1;ord=[timestamp]?" BORDER=0 WIDTH=1 HEIGHT=1 ALT="Click Here"></A>

http://ad.doubleclick.net – The web address of the CM ad servers 

ad: Identifies the tag as being Standard.

N963 – The ID of your CM account 

sdtestsitesix.com -- An identifier for a site, based on the site's web address

B1898482 – The Campaign ID 

Ord=[Timestamp] – the random number the site inserts to make sure the tag doesn’t get cached. 

Anatomy of a Click Tracker

http://ad-region.doubleclick.net/clk;[adID];[placement ID];[verifier]?[click-throughURL]

http://ad-region.doubleclick.net/: These parameters are the same as in standard tags.

clk: Lets the DART ad servers know that this is a click tracker.

[ad ID];[placement ID]: The IDs of the ad created for this click tracker and of the targeted placement.

[verifier]: A character that is created according to a proprietary algorithm and used internally to verify that the tag has not been tampered with.

[click-through URL]: The web address to which the user is ultimately sent.

IMPORTANT: The clickthrough URL is only included with static click trackers. In a dynamic click tracker, the second part of the tag, beginning with the ?, is left out.