I'm troubleshooting why my GTM Custom HTML Tag for Lead Forensics (LF) isn't being reported back in the LF Visitors List. GTM only supports asynchronously loading tags, so I think that is the problem.
Here is the tracking code, if that helps:
<script type="text/javascript" src="http://bux1lXXXX.com/js/XXXXX.js"></script>
<noscript><img src="http://bux1lXXXX.com/XXXXX.png" style="display:none;" /></noscript>