XML·XML from well-formed documents to XSLT

RSS and Atom

Read and write feed formats built on XML.

Beginner 12 min read Lesson 8 of 300 Challenge included

What you will be able to do

Use absolute URLs in feeds.
Use RFC 3339 timestamps for Atom.
Give every entry a stable id.
Serve the correct Content-Type.

In plain English

RSS and Atom are XML vocabularies for syndication. Atom is more explicit and uses RFC 3339 dates. Feeds need absolute URLs, stable ids and correct content types.

feed.xmlHTML

<feed xmlns="http://www.w3.org/2005/Atom">
  <title>EduByte</title>
  <id>https://www.edubyte.tech/</id>
  <updated>2026-11-01T00:00:00Z</updated>
  <entry>
    <title>CSS Grid</title>
    <id>https://www.edubyte.tech/blog/css-grid</id>
    <updated>2026-11-01T00:00:00Z</updated>
  </entry>
</feed>

Your turn

Add a feed id

Easy

Add an id element with the site URL to an Atom feed.

HTML · starter

<feed>

Check your understanding before moving on.

Knowledge checkQuestion 1

Which date format does Atom use?

Select an answer to continue

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