The ClickTAG variable is a tracking tool assigned by a publisher or ad serving network to a flash banner ad. It is also used to link the flash banner to a destination URL.
Okay. But why using ClickTAG when a link – the destination URL – can be hard coded into the SWF itself? Well, that’s because hard coding the click-through URL into the SWF would make click counting impossible. And that would kill the CPC advertising system – the popular system Google uses too.
Also, the ClickTAG variable has many other advantages:
- 1. Both sides – advertiser and publisher – can count clicks-throughs
2. You don’t need to modify the SWF itself if you need to change the destination URL
3. The destination URL can be easily checked without the help of a flash programmer