How do I track my ads with third-party tracking pixels?

You can track the performance of individual ads in your Transistor campaigns with third-party tracking pixels. Each time an ad is delivered, we let your tracking service know, so it can measure impressions alongside your sponsor's other campaigns.

How to use 3rd party tracking?

• Go to Campaigns › Ads and open the ad you'd like to track. Trackers can only be added to an ad after it's been created.
• Under Third-party tracking, click Add Tracker
• Enter a Tracker Name and paste in the URL from your tracking service, using the macros below in place of your service's own

Each ad can have its own trackers.

Tracking services

Tracking works with any service that gives you a tracking URL, including:

• Claritas
• Google Campaign Manager 360 (previously known as DoubleClick Campaign Manager)
• Magellan AI
• Megaphone
• Podscribe
• Podtrac
• Swap FM

Available macros:

{{episodeID}}: The globally unique identifier for the episode

{{seriesID}}: The globally unique identifier for the podcast

{{timestamp}}: The unix timestamp of when the ad was delivered

{{timestampISO}}: The ISO 8601 timestamp of when the ad was delivered

{{random}}: A randomly generated number (the equivalent of "cachebuster" in other platforms)

{{placement}}: The placement of the ad, either preroll, midroll, or postroll

IP Headers

X-Device-User-Agent: Always sent. Includes the user agent of the listener's device.

X-Forwarded-For/X-Device-IP: Will be sent if the “Send IP Headers” checkbox is selected. Contains the listener's IP address.

New to Campaigns? See How do I set up dynamic ads with Campaigns?

If you have additional questions please reach out to us:

• Email - support@transistor.fm
• Live Chat: https://transistor.fm/contact/

Updated on: 02/11/2026