What is Post-Roll Ad?
A post-roll ad is an advertisement that plays at the very end of a podcast episode, after the content has finished.
Why Post-Roll Ad Matters for Podcasters
Post-roll ads are the least expensive ad slots (lowest CPM) because they have the lowest listen-through rate. By the time the episode ends, many listeners have already stopped playback or switched to the next show. However, they are still valuable for 'Direct Response' campaigns where the advertiser wants to catch the most engaged superfans—the people who listen until the very last second. They are often used for cross-promoting other podcasts or for general brand awareness campaigns where immediate conversion is not the primary metric.
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CPM (Cost Per Mille)
CPM stands for Cost Per Mille, which means cost per thousand downloads. It is the rate advertisers pay for every 1,000 downloads of your podcast episode.
Pre-Roll Ad
A pre-roll ad is an advertisement that plays at the very beginning of a podcast episode, before the main content starts. These ads typically last 15-60 seconds and are the first thing listeners hear.
Mid-Roll Ad
A mid-roll ad is an advertisement placed in the middle of a podcast episode, typically during a natural break in the content. These ads usually command the highest CPM rates because listeners are most engaged at this point.
Post-Roll Ad
A post-roll ad is an advertisement that plays at the end of a podcast episode, after the main content has concluded. These ads typically have lower CPM rates because not all listeners reach the end of episodes.