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How do I track click for Flash/SWF ads?

Flash ads (SWF files) should not use a static link for the click button, it should use clickTAG parameter, which is the industry-standard for click tracking. clickTAG is used across all ad servers to track clicks of Flash/SWF ads. Our ad server will ask for the actual click URL when you create the SWF ad in your account.


The original ActionScript 2 code for the button instance may look something like this:
on (release) {

After the conversion for click tracking, it should look like this:

on (release) {
  if (_root.clickTAG.substr(0,4) == "http") {

For ActionScript 3, MyClickButton is the name of the button instance and the code should look like this:

  function():void {
    if (root.loaderInfo.parameters.clickTAG.substr(0,4) == "http") {
        new URLRequest(root.loaderInfo.parameters.clickTAG),
If you would like to know more technical details, please review the official instructions from Adobe Flash. For greater compatibility, our system uses "_root.clickTAG" instead of "clickTAG". Because Flash ads can be served within IFRAMEs, it's best to use target "_top" or "_blank" for the getURL function. For better security, the ActionScript code checks for a standard/secure URL (http:// or https://), instead of allowing a possible malicious JavaScript code.

Sample Code

You can view this tutorial to create a SWF ad with clickTAG tracking from scratch. Or you can download these sample Macromedia .FLA files to compare:
  • Original files with a fixed URL and without click tracking:
    sample.fla (SWF: sample.swf)
  • After conversion, the files use clickTAG parameter for dynamic click tracking:
    sample-clickTAG.fla (SWF: sample-clickTAG.swf)
  • Also, please use this template to manually convert to clickTAG if our system failed to convert your SWF file automatically.

Troubleshoot and Test a SWF file for clickTAG

It is recommended to test all Flash ads for click tracking via clickTAG before allowing it to display online. Learn More

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