Here’s a simplified glossary to help you quickly understand the key terms that frequently arise in the podcast advertising world.


  • Ad Impression
    An ad impression is counted each time an ad is heard by a listener. Unlike podcast downloads, which measure how many times an episode is downloaded, ad impressions specifically track the reach of the ad.


  • Ad Placements
    Also known as Ad Time Slots, these are the specific points in a podcast episode when ads are played: pre-roll (at the start), mid-roll (in the middle), or post-roll (at the end).


  • Conversion Rate
    The percentage of listeners who take the desired action (like visiting a website) after hearing an ad.


  • CPM (Cost Per Mille)
    This stands for cost per 1,000 impressions and represents how much advertisers pay each time their ad is heard 1,000 times.


  • CTA (Call to Action)
    A call to action is an essential part of an advertisement. This part prompts listeners to take a specific action, like visiting a website or using a promo code.


  • DSP (Demand-Side Platform)
    A digital platform that enables advertisers to purchase large volumes of ad space through automation.


  • Host-read Ad
    An ad that is voiced by the podcast's host, providing a personal endorsement.


  • Pre-recorded Ad
    Also known as announcer-read or pre-produced ads, these are produced in advance and typically feature a professional voice-over artist.


  • Self-serve Campaign
    An advertising approach that allows advertisers to manage their own campaigns, often through an online platform.