In ColdFusion, you can make asynchronous calls using the cfthread tag. The cfthread tag allows you to run a block of code in a separate thread, which can improve the performance of your application by allowing other processing to occur while the asynchronous call is being made. Here’s an example of how you can make an asynchronous call in ColdFusion:

<cfthread action="run" name="asyncCall">
  <!--- Code for asynchronous call goes here --->
</cfthread>



<cfthread action="join" name="asyncCall">
<!--- Code for other processing goes here --->
</cfthread>

In this example, the code between the cfthread tags will be executed asynchronously in a separate thread. The action attribute is set to “run” to start the thread, and the name attribute is used to give the thread a unique name.

After the asynchronous call is started, the rest of the code in the main thread can be executed while the asynchronous call is running in the background. The cfthread tag with the action attribute set to “join” is used to wait for the asynchronous call to complete before moving on to the next step in the main thread.