iTunes Smart App Banners work for podcasts, too
Starting with iOS 6, Apple introduced Smart App Banners. If you’re an iPhone person, you’ve probably seen these things at the top of mobile websites, prompting you to download a corresponding app. They link right to the iTunes app store.
I recently learned that iTunes Smart App Banners aren’t just for apps. They work for podcasts listed in the iTunes directory, and they deep link directly to the built-in Podcast app:
How? Just drop this into your <head>:
<meta name="apple-itunes-app" content="app-id=XXXXXXXXX">
Where XXXXXXXXX is your iTunes podcast ID.