By Alvena Ode, Founder & CMO, Blastily · 3 min read

Podcast listeners are loyal, attentive and often hard to reach elsewhere. Podcast advertising lets you put your brand in their ears, frequently in the voice of a host they trust. Here's how to choose shows, write ads that convert and measure results.
This guide is part of our series on audio and broadcast advertising.
| Type | What it is | Best for |
|---|---|---|
| Host-read (baked-in) | Host reads the ad, recorded into the episode | Trust, niche shows, long-tail listens |
| Host-read (dynamic) | Host-read, inserted into episodes for a set time | Trust with flexible timing |
| Produced spot | Your pre-recorded ad inserted into episodes | Consistent message, reuse of radio creative |
| Programmatic | Spots placed across many shows by targeting | Scale, audience targeting |
| Sponsorship | "This episode is brought to you by…" plus mentions | Association with a show |
Placement matters too: pre-roll (start), mid-roll (middle) and post-roll (end). Mid-roll often gets the most attention.
Give hosts key points, not a rigid script:
Encourage hosts to share genuine experience with your product. If the host has a material connection with your brand, it should be clear to listeners that it's a paid ad; see endorsements and disclosure.
Many listeners act days or weeks later, so evaluate over a sensible window. See how long advertising takes to work.
| Model | How it works | Watch for |
|---|---|---|
| CPM | Price per thousand downloads or impressions | How downloads are counted |
| Flat fee | Fixed price per episode or package | Estimated audience per episode |
| Performance | Payment per sale or signup | Tracking reliability |
| Hybrid | Lower CPM plus performance bonus | Clear definitions |
Advertising is one way in; being a guest is another. Guest appearances build authority and cost nothing but time. Read how to get booked on podcasts, and consider using both: advertise on the shows where you've been a guest, and listeners will recognize you. For how audio fits with digital, see radio vs. digital ads.
It can work very well, especially host-read ads on shows whose audience matches your customers. Listeners often feel a personal connection to hosts, which lends credibility to their recommendations.
Commonly by CPM (cost per thousand downloads or impressions), sometimes as a flat fee per episode, and occasionally with performance elements such as a cost per acquisition.
Host-read ads are read by the show's host, often in their own words, and carry personal trust. Programmatic or dynamically inserted ads are produced spots placed across many shows by targeting criteria, with more scale but less personal endorsement.
Use a unique promo code and vanity URL for each show, ask new customers how they heard about you, and watch branded search and direct traffic after episodes release.
Want this done for you? Blastily plans and places PR, press releases, radio, TV and out-of-home campaigns for growing brands across Canada and beyond.
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