Podtrac measurement can be used when hosting your podcast on Podcast.co. You can read the their help article here: https://help.podcast.co/en/articles/3629552-media-url-prefix
Follow these steps to implement the Podtrac prefix:
Log in to your Podcast.co dashboard
Go to the podcast you wish to add Podtrac measurement to
Click Settings
Click Advanced
Scroll down to the section titled Media URL Prefix
Enter the Podtrac prefix in the field. The Podtrac prefix is: https://dts.podtrac.com/redirect.mp3/
Click Save Changes