How to build a podcast platform like Podbean

Podbean, Buzzsprout, and Anchor all solve the same problem: getting a podcast on Apple and Spotify without infrastructure work. That is the right product for an individual host or a company with one or two shows.

Media companies, radio networks, professional associations, and B2B content brands running 10 or more shows have a different problem. They need a platform they own, with centralized episode management, network-level analytics, monetization controls they set, and no per-show monthly fee that compounds as they grow.

According to Edison Research's Infinite Dial 2024 report, monthly podcast listening in the US has grown to 42% of Americans aged 12 and up, up from 34% in 2020. For media companies with large content catalogs, owning the delivery infrastructure now has a clear ROI case.

This guide covers what it takes to build that platform.

Key takeaways

• Podbean charges $9-$99/month per show. At 10 shows, that's $90-$990/month in perpetuity. A $100K custom platform pays for itself within 8-14 months.

• The RSS feed is the distribution mechanism for the entire podcast industry. Every directory reads it. Get the spec wrong and you lose Apple Podcasts, Spotify, and Amazon Music simultaneously.

• At 1 million downloads/month, CloudFront hosting costs $80-$150/month. Podbean's $99/month plan has limits. The economics flip at scale.

• Dynamic ad insertion lets you sell different ads to different markets without re-uploading episodes. It requires ffmpeg audio stitching on the server.

Who actually builds this

The companies building custom podcast platforms are not trying to compete with Podbean as a product. They're building infrastructure for their own content distribution.

B2B media companies running 10 or more shows (a marketing analytics podcast network, a legal news network, a supply chain industry publication) want centralized episode management across all shows, network-level analytics that roll up across the portfolio, and a single editorial calendar. Managing 10 shows on Buzzsprout means 10 separate logins, 10 separate analytics dashboards, and 10 separate billing accounts.

Radio stations converting to digital already have production infrastructure and content archives. They need an RSS-compliant hosting system that gives them distribution on podcast directories without ceding control to a third-party platform.

Professional associations publish member education as podcasts: continuing education series, conference recordings, expert interviews. They need access control (member-only episodes), analytics for sponsor reporting, and a player that embeds on their own website.

Enterprise companies building internal communications podcast channels want a private hosting system for executive town halls, training content, and internal news. They're not looking for a public-facing platform with public RSS feeds.

Podcast networks wanting full monetization control need dynamic ad insertion (DAI), subscriber gating for premium tiers, and the ability to sell sponsorships directly without paying a platform's revenue share.

The RSS feed: the most important technical decision

Before audio hosting, before the dashboard, the RSS feed is the technical decision that determines whether your platform works.

Every major podcast directory (Apple Podcasts, Spotify, Google Podcasts, Amazon Music, iHeartRadio) ingests your content by reading an RSS feed. They do not store your audio files. They read your feed to discover episodes, then stream audio directly from your hosting URL when a listener presses play.

Apple's podcast RSS specification is the de facto standard. All directories accept it. Spotify has minor extensions; Amazon Music has minor extensions. If you conform to Apple's spec, you cover all directories.

The required channel-level elements are title, description, author name, artwork URL (3,000x3,000 pixels, JPEG or PNG, under 500KB), language, and iTunes category. Missing or malformed artwork is the most common reason new feeds get rejected by Apple.

Per-episode, the required elements are title, description, publication date, audio file URL, duration in seconds, and a globally unique identifier (GUID). The GUID must not change after an episode is published. Every directory uses it to track which episodes they've already indexed. If you change the GUID, directories treat it as a new episode and double-list it.

Optional but important: explicit content rating (directories filter on this), episode type (full, trailer, or bonus), season and episode number, and the transcript URL (Apple displays transcripts in the app when this is present).

Generate the RSS feed dynamically from your database, not as a static file. When an episode goes live at a scheduled time, the feed updates automatically. The feed URL should be stable: it is registered with directories once and never changes.

Audio hosting: S3 and CloudFront

The audio URL in your RSS feed must be a direct, publicly accessible MP3 link. When Apple Podcasts pulls your feed and a listener taps play, Apple's servers make a direct HTTP request to that URL. Your hosting must serve the file reliably at scale.

AWS S3 with CloudFront CDN is the standard solution. S3 stores the MP3 files. CloudFront delivers them from edge locations close to the listener, reducing latency on the first request and handling the concurrent load when a popular episode publishes.

The economics at scale: at 1 million downloads per month (a large independent show), CloudFront data transfer costs $80-$150/month depending on file size and geographic distribution. Podbean's $99/month plan has storage limits and bandwidth caps. The custom hosting cost is flat regardless of show count.

Upload pipeline: when a publisher uploads an MP3 from the dashboard, your backend receives it, validates the format, generates a unique S3 key, uploads to S3, and writes the hosting URL to the episode record. The S3 URL is what goes into the RSS feed's <enclosure> tag.

Set the correct HTTP headers on S3 objects: Content-Type: audio/mpeg for MP3 files, and Accept-Ranges: bytes to allow byte-range requests. Byte-range support is required for seeking within episodes. Without it, a listener who skips to the 30-minute mark forces a full download of the audio file.

Episode management dashboard

The publisher dashboard is where content teams create and manage episodes. The core features are straightforward.

Episode creation: title, description (supports markdown, which renders as formatted show notes on compatible directories), audio file upload, publication date (future dates enable scheduled publishing), explicit content flag, episode type, season and episode number.

Scheduling: set a future publication date and time. The episode sits in draft status until that moment, then automatically appears in the RSS feed and becomes publicly accessible at the audio URL. Send email confirmation to the publisher when the episode goes live.

Post-publish editing: publishers need to edit episode titles, descriptions, and thumbnails after publication. They do not need to replace audio files after publication. Replacing audio changes the episode's identity. If a publisher uploads the wrong audio, archive the episode and publish a corrected version as a new entry.

Transcript upload: paste a transcript or upload a file. Store the transcript text, generate a transcript URL, and add it to the RSS episode element. Apple Podcasts displays the transcript in the app when the URL is present.

Archive: rather than deleting episodes, archive them. Archived episodes are removed from the RSS feed (they stop appearing in new downloads and directory listings) but the audio file remains accessible at its URL. This prevents 404s in old clients that cached the episode URL.

For a multi-show network, the dashboard's navigation is organized by show. A network-level view shows all shows and their episode counts, total downloads across the network, and upcoming scheduled episodes.

Analytics: what actually counts

Podcast analytics are harder than web analytics. Raw RSS requests do not equal listeners.

When someone subscribes to a podcast, their app polls your RSS feed periodically, typically every hour. Each poll is a request to your feed. It is not a download. When a new episode appears in the feed, the app may prefetch the audio file automatically, generating a request that the listener never consciously initiated. That prefetch may or may not be a listen.

The IAB Tech Lab Podcast Measurement Technical Guidelines (v2.1) define what counts as a valid download: a request for at least 60 seconds of audio, from a known non-bot user agent, with a unique IP address within a 24-hour window per episode. Applying IAB filtering reduces raw request counts by 15-40% depending on the show's audience. The IAB-compliant number is what advertisers pay against.

The analytics reports that matter: downloads per episode (IAB-compliant), platform breakdown (Apple Podcasts typically 45-55% of downloads, Spotify 25-35%, all others 10-20%), geographic breakdown by country, listening completion rate (what percentage of the audience finishes each episode), and subscriber/follower count pulled from directory APIs. Apple and Spotify provide these through their analytics APIs for verified shows.

Build the analytics layer on your PostgreSQL database. Log every audio request with timestamp, IP, user agent, bytes transferred, and episode ID. A background job processes the raw log against IAB filters and writes to an analytics summary table. The dashboard queries the summary table, not the raw log.

Web player

An embeddable web player lets a publisher put the episode player on their own website (a product page, a blog post, a resource library) without redirecting listeners to a directory.

The player needs: episode list or single-episode mode, play/pause, seek bar, playback speed control (0.75x, 1x, 1.25x, 1.5x, 2x), subscribe links to major directories, volume control, and share links.

Build it as an iframe embed or a JavaScript widget with a single script tag. The publisher gets an embed code from the dashboard: <script src="yourplatform.com/player/episode/123"></script>. Drop it anywhere on their site.

Two solid open-source foundations: Podlove Web Player (podcast-specific, full-featured) or Plyr (general-purpose media player, cleaner UI, easier to customize). Either saves 4-6 weeks of player development. Customize the CSS to match the publisher's brand, add your feed integration, and ship it.

Premium subscriptions

Gating episodes behind a paid subscription requires three components working together: Stripe for billing, a token system for access control, and a private RSS feed that subscriber podcast apps can use.

When a listener subscribes through Stripe, your backend creates a subscription record, generates a unique token (a random 32-character string), and sends the listener a private RSS feed URL: yourshow.com/feed/private/{token}. They add this URL to their podcast app as a custom feed. The app pulls the private feed and displays premium episodes alongside public ones.

The private feed is identical to the public feed except it includes the episodes flagged as premium. Your server validates the token on each request to the private feed URL. If the token is invalid or revoked, the server returns a 401 and the podcast app stops displaying premium episodes.

When a Stripe subscription cancels or charges back, a Stripe webhook fires. Your webhook handler revokes the token. The listener's next feed refresh returns a 401. They lose access to premium episodes within 1-2 hours of cancellation.

For the payment flow, use Stripe Checkout. It handles the card entry UI, 3DS authentication, and trial periods. You receive the webhook, create the token, and send the private feed URL in a confirmation email.

Dynamic ad insertion

Dynamic ad insertion (DAI) is the feature that separates a basic hosting platform from a monetization platform.

Standard podcast advertising bakes ads into the audio file at recording time. You record the episode, include the ad read, upload the final file. The ad is permanent. Every listener who plays the episode hears the same ad, forever. Old episodes that still get downloads serve old ads that may have expired.

DAI works differently. The publisher uploads the episode audio without the ad. They define ad break markers at timestamps in the episode (e.g., "insert a pre-roll before the 0:00 mark, a mid-roll at the 12:30 mark, and a post-roll after the final second"). The platform maintains a campaign system: which ads run on which shows, in which geographic markets, during which date ranges.

When a listener requests the episode audio, the server identifies the listener's country from the request IP, selects the appropriate ads for each marker from the active campaigns, stitches the ad audio into the episode at the marker timestamps using ffmpeg, and streams the assembled audio file.

The stitching happens server-side on each request. The listener's podcast app receives a single audio stream. It has no visibility into where the episode ends and the ad begins.

The infrastructure: ffmpeg runs on your server (or on Lambda for scale) to perform the stitching. Ad audio files are stored in S3 alongside episode audio. A campaign management interface lets the publisher or ad sales team assign ad creatives to shows, markets, and date ranges. Analytics track ad impressions separately from episode downloads.

DAI adds $20K-$30K to the build cost and 4 weeks to the timeline. For a network with direct ad sales, the revenue uplift from serving fresh ads on back-catalog episodes typically recovers that cost within the first campaign cycle.

Tech stack

Node.js for the API layer: RSS generation, audio upload handling, analytics ingestion, webhook processing. React for the publisher dashboard and the embeddable web player. PostgreSQL for the data layer: shows, episodes, analytics summaries, subscriber records, ad campaigns. AWS S3 for audio file storage. CloudFront for audio delivery with byte-range support. Stripe for subscription billing and webhook processing. ffmpeg for DAI audio stitching, running on EC2 or Lambda depending on volume. SendGrid for transactional emails (episode live confirmations, subscriber welcome emails, payment receipts).

For the RSS feed, use a library rather than building the XML generation from scratch. Most Node.js RSS libraries handle the Apple spec correctly. Review the generated XML against Apple's validator before launch. Apple's Podcasts Connect tool provides a feed validator.

Timeline and cost

8-12 weeks for the basic platform:

• RSS feed generation and Apple spec compliance (weeks 1-2)

• AWS S3 + CloudFront audio hosting with byte-range support (weeks 1-3)

• Episode management dashboard with scheduling (weeks 2-6)

• IAB-compliant analytics pipeline (weeks 4-8)

• Embeddable web player (weeks 6-10)

• QA and production deployment (weeks 9-12)

Add 4 weeks for premium subscriptions with private RSS feeds and Stripe billing.

Add 4 more weeks for dynamic ad insertion with ffmpeg stitching and campaign management.

Cost: $80K-$100K for the basic platform. $120K-$140K with premium subscriptions and DAI.

For a media company paying $990/month for 10 shows on Podbean, the basic platform pays for itself in 8 months. For a network with direct ad sales, DAI revenue on back-catalog episodes changes the math further.

"The IAB podcast measurement guidelines exist because the industry needed a standard that advertisers could trust. Without it, there's no common language between publishers and buyers." -- Marty Moe, former President, Vox Media, speaking at IAB Podcast Upfront

RaftLabs has built content delivery and media platforms for B2B brands and professional networks. The common pattern: companies start on Podbean or Buzzsprout, hit the per-show fee wall at 8-10 shows, then build custom. See our SaaS development page for how we structure these builds. If you're evaluating build vs. buy for your media stack, our custom software development overview covers how we scope and price these engagements.

Frequently asked questions

How much does it cost to build a custom podcast platform?

A basic podcast platform (RSS generation, audio hosting on S3 and CloudFront, episode management dashboard, and web player) costs $80K-$100K and takes 8-12 weeks. Adding premium subscriptions with private RSS feeds and Stripe billing takes the cost to $100K-$120K and the timeline to 12-14 weeks. Dynamic ad insertion with ffmpeg audio stitching and campaign management adds another $20K-$30K and 4 weeks, for a total of $120K-$140K over 14-16 weeks.

Why is the RSS feed so critical?

Every podcast directory (Apple Podcasts, Spotify, Amazon Music, Google Podcasts) distributes your content by reading your RSS feed. They do not store your audio. They read your feed to discover episodes and stream audio directly from your hosting URL. If your RSS feed is malformed or missing required elements, directories reject the show entirely. Apple's specification is the de facto industry standard. Conforming to it covers all directories simultaneously.

What is dynamic ad insertion and why does it matter?

Dynamic ad insertion stitches ads into episode audio at playback time rather than baking them in at recording time. The publisher defines ad break markers in each episode. When a listener requests the audio, the server selects ads based on the listener's location and active campaigns, stitches them in at the break points using ffmpeg, and streams the combined audio. The listener hears the correct, current ad rather than a stale ad that was recorded 18 months ago. DAI lets you monetize back-catalog episodes with current advertisers and run geographically targeted ad campaigns.

How do private RSS feeds work for paying subscribers?

When someone subscribes through Stripe, they receive a unique private RSS feed URL containing a subscriber-specific token. Their podcast app polls this URL and pulls premium episodes. Your server validates the token on each request. When the Stripe subscription cancels, a webhook revokes the token. The subscriber's next feed poll returns a 401. Their app stops showing premium episodes within 1-2 hours of cancellation. The public feed continues to serve standard episodes to all listeners regardless of subscription status.

What counts as a podcast download?

The IAB Tech Lab Podcast Measurement Technical Guidelines define a valid download as a request for at least 60 seconds of audio, from a non-bot user agent, with a unique IP per episode within a 24-hour window. Raw HTTP request counts are always higher because they include bot traffic, RSS feed crawlers, and app prefetching. IAB-compliant filtering typically reduces raw counts by 15-40%. The IAB number is what podcast advertisers pay against. Building to this standard from day one avoids retrofitting the analytics pipeline later.