HowToCodePage

RSS & Atom

Syndication feeds and readers.

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This course has 3 lessons. Start with the first one and use the next / previous links at the bottom of each lesson — the sidebar keeps the whole course in order.

Lessons

  1. The RSS 2.0 feed formatThe channel and item elements that make a feed, which ones are required, and the date and identifier rules readers enforce.
  2. Generating a valid feedBuilding feed XML safely from application data, validating it, and advertising it so readers can find it.
  3. Atom and how readers consume feedsWhere Atom differs from RSS, how feed readers poll with conditional requests, and what that means for your server.

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Last refreshed 2026-09-17.