Click tracking enables clicks on links within an email to be saved to the database, and used for analysis, campaign automation or segmentation purposes. The following data is logged for each click:

Date and time; Which subscriber clicked; Which email the subscriber clicked (down to the optimized combination of content that was received); Which link the subscriber clicked (multiple links to the same URL are tracked independently); The IP address from which the link was clicked; Which browser/email client the subscriber used. In addition to the above, the template or content author may specify what event type the click should be saved as (normally either 'Clicked' or 'Unsubscribed'), and an arbitrary data value (generally used for campaign automation).

Within the body of an email, any link (<a href=""> in HTML, or any string matching a URL-identifying regular expression in text) is replaced with a Taguchi tracking URL. This includes the name of the Taguchi tracking server, (like http://<client>.taguchimail.com/...), and a series of alphanumeric tracking codes which uniquely identify the email and link type.