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28 Feb 2026 · 2 min read

What Is an RSS Feed? The Podcast Plumbing Explained

RSS is the entire distribution mechanism of podcasting — one XML file that reaches every directory. Here's how it actually works.

RSS is the entire distribution mechanism of podcasting — one XML file that reaches every directory. Here's how it actually works.

The landscape

When it comes to demystifying the single file that powers the whole medium, the details matter. Here's what the evidence and practitioner experience point to:

  • A podcast is, technically, just an RSS feed: an XML file listing episodes with audio URLs, titles, descriptions and metadata. Apps poll the feed; you never upload to Spotify directly.
  • The critical tags: , <link>, <a href="itunes:image">itunes:image</a> for artwork (3000×3000px), <enclosure> for audio files, <guid> as a permanent episode identifier, and iTunes category tags.</li> </ul> <h2>What actually works</h2> <p>When it comes to demystifying the single file that powers the whole medium, the details matter. Here's what the evidence and practitioner experience point to:</p> <ul> <li>Feed ownership equals independence — whoever controls the RSS feed controls the show's distribution. Self-hosted or platform-controlled feeds are a real strategic decision.</li> <li>Feeds must be valid XML and include required namespaces (itunes, podcast, content:encoded) or directories will reject them — validation tools like Cast Feed Validator catch problems.</li> </ul> <h2>Putting it into practice</h2> <p>When it comes to demystifying the single file that powers the whole medium, the details matter. Here's what the evidence and practitioner experience point to:</p> <ul> <li>Episode GUIDs must be stable — changing a GUID republishes the episode in some directories and resets its stats.</li> <li>PodKrafter generates and hosts a standards-compliant feed per show automatically; directories pull from it on their own schedules (typically within hours of publish).</li> </ul> <h2>Key takeaways</h2> <ul> <li>A podcast is, technically, just an RSS feed: an XML file listing episodes with audio URLs, titles, descriptions and metadata. Apps poll the feed; you never upload to Spotify directly.</li> <li>Feeds must be valid XML and include required namespaces (itunes, podcast, content:encoded) or directories will reject them — validation tools like Cast Feed Validator catch problems.</li> <li>PodKrafter generates and hosts a standards-compliant feed per show automatically; directories pull from it on their own schedules (typically within hours of publish).</li> </ul> <p><em>Ready to put this into practice? PodKrafter turns research into broadcast-ready podcast episodes — <a href="/register">start free</a>.</em></p> </div><div class="mt-14 rounded-xl border bg-gradient-to-br from-violet-600/10 to-sky-500/10 p-8 text-center"><h3 class="text-xl font-bold">Create your own AI podcast</h3><p class="text-sm text-muted-foreground mt-2 mb-5">Research, script, voice and publish — no recording needed. 100 free credits to start.</p><a class="inline-flex items-center justify-center gap-2 whitespace-nowrap rounded-lg text-sm font-medium transition-all focus-ring disabled:pointer-events-none disabled:opacity-50 [&_svg]:pointer-events-none [&_svg]:size-4 [&_svg]:shrink-0 text-white shadow-lg shadow-primary/25 bg-gradient-to-r from-violet-600 to-indigo-600 hover:from-violet-500 hover:to-indigo-500 active:scale-[0.98] h-9 px-4 py-2" href="/register">Try PodKrafter free <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-arrow-right h-4 w-4"><path d="M5 12h14"></path><path d="m12 5 7 7-7 7"></path></svg></a></div><div class="mt-14"><h3 class="font-semibold mb-4">More in <!-- -->Distribution</h3><div class="grid gap-4 sm:grid-cols-3"><a class="group rounded-lg border bg-card p-4 card-hover" href="/blog/podcast-show-descriptions-before-and-after"><p class="text-sm font-medium leading-snug group-hover:text-primary transition-colors">Podcast Show Descriptions: Before and After</p><p class="text-xs text-muted-foreground mt-2">1<!-- --> min read</p></a><a class="group rounded-lg border bg-card p-4 card-hover" href="/blog/podcast-rss-vs-direct-upload-distribution-explained"><p class="text-sm font-medium leading-snug group-hover:text-primary transition-colors">Podcast RSS vs Direct Upload: Distribution Explained</p><p class="text-xs text-muted-foreground mt-2">1<!-- --> min read</p></a><a class="group rounded-lg border bg-card p-4 card-hover" href="/blog/podcast-categories-and-tags-the-discovery-lever"><p class="text-sm font-medium leading-snug group-hover:text-primary transition-colors">Podcast Categories and Tags: The Discovery Lever</p><p class="text-xs text-muted-foreground mt-2">1<!-- --> min read</p></a></div></div></article><!--$--><!--/$--></main><footer class="border-t border-border/60 bg-card/30"><div class="container py-14"><div class="grid gap-10 md:grid-cols-[1.4fr_1fr_1fr_1fr]"><div><span class="inline-flex items-center gap-2.5"><svg viewBox="0 0 48 48" fill="none" class="h-8 w-8" aria-hidden="true"><defs><linearGradient id="pk-grad" x1="0" y1="0" x2="48" y2="48"><stop offset="0%" stop-color="#8b5cf6"></stop><stop offset="100%" stop-color="#38bdf8"></stop></linearGradient></defs><rect x="2" y="2" width="44" height="44" rx="12" fill="url(#pk-grad)"></rect><g fill="white" opacity="0.95"><rect x="11" y="20" width="3.4" height="8" rx="1.7"></rect><rect x="16.4" y="15" width="3.4" height="18" rx="1.7"></rect><rect x="21.8" y="11" width="3.4" height="26" rx="1.7"></rect><rect x="27.2" y="17" width="3.4" height="14" rx="1.7"></rect><rect x="32.6" y="21" width="3.4" height="6" rx="1.7"></rect></g></svg><span class="text-[19px] font-bold tracking-tight leading-none"><span class="text-primary">Pod</span>Krafter</span></span><p class="mt-4 text-sm text-muted-foreground leading-relaxed max-w-xs">Professional AI-generated podcasts in minutes. 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Apps poll the feed; you never upload to Spotify directly.\u003c/li\u003e\n\u003cli\u003eThe critical tags: \u003ctitle\u003e, \u003clink\u003e, \u003ca href=\"itunes:image\"\u003eitunes:image\u003c/a\u003e for artwork (3000×3000px), \u003cenclosure\u003e for audio files, \u003cguid\u003e as a permanent episode identifier, and iTunes category tags.\u003c/li\u003e\n\u003c/ul\u003e\n\u003ch2\u003eWhat actually works\u003c/h2\u003e\n\u003cp\u003eWhen it comes to demystifying the single file that powers the whole medium, the details matter. Here\u0026#39;s what the evidence and practitioner experience point to:\u003c/p\u003e\n\u003cul\u003e\n\u003cli\u003eFeed ownership equals independence — whoever controls the RSS feed controls the show\u0026#39;s distribution. 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