Technology / Email / Click-Through: When a link is included in an email, a click-through occurs when a recipient clicks on the link. Click-through tracking refers to the data collected about each click-through link, such as how many people clicked it, how many clicks resulted in desired actions such as sales, forwards or subscriptions.
Technology / Email / Click-Through Rate (CTR): Total number of clicks on email link(s) divided by the number of emails sent. Includes multiple clicks by a unique user. Some email broadcast vendors or tracking programs define CTR differently. MORE