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RSS feed validator.

Paste your RSS 2.0 or Atom feed and see what is wrong, what could be better, and how the first items will look to readers.

Use the tool ↓Free website audit

Technical SEO

About this tool.

An RSS or Atom feed lets feed readers, email tools and other sites pick up your new posts. A feed breaks quietly: one missing tag, a badly formatted date or a repeated guid and readers can skip or duplicate posts. This tool checks that the XML is well-formed, that the required channel and item fields are present, that dates and links are valid, that every guid is unique, and shows a preview of the first items. Browsers do not allow a web page to fetch another website, so you paste the feed. It is read in your browser and nothing is uploaded.

How to use it

Open your feed address (for example /feed.xml), press Ctrl+U (or right-click and choose View page source), select all and copy.
Paste it into the box, or upload the saved .xml file. The result appears straight away.
Fix the problems in red first, then the suggestions in orange, and paste again to confirm.

Feed XML

<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>Smile Care Blog</title>
    <link>https://www.smilecare.in/blog/</link>
    <description>Tips for healthy teeth from our Noida clinic.</description>
    <language>en-in</language>
    <atom:link href="https://www.smilecare.in/blog/feed.xml" rel="self" type="application/rss+xml"/>
    <item>
      <title>How to care for your teeth after a root canal</title>
      <link>https://www.smilecare.in/blog/after-root-canal/</link>
      <guid isPermaLink="true">https://www.smilecare.in/blog/after-root-canal/</guid>
      <pubDate>Wed, 30 Sep 2026 09:00:00 +0530</pubDate>
      <description>What to eat, what to avoid and when to call us.</description>
    </item>
    <item>
      <title>Braces or aligners?</title>
      <link>https://www.smilecare.in/blog/braces-or-aligners/</link>
      <pubDate>2026-09-20</pubDate>
      <description>A simple way to choose between the two.</description>
    </item>
  </channel>
</rss>

Nothing is uploaded. The feed is read inside your browser. 1046 characters.

Result

Paste your RSS 2.0 or Atom feed above to check it.

Good to know: This is a practical check of the rules that feed readers care about, not the official W3C validator. After you fix a feed, also open it in a real reader app. If you publish with a CMS or a static site generator, fix the template once and every future post is correct.

Questions

Good to know.

What dates does RSS expect?+

RSS 2.0 uses the RFC 822 form, for example Wed, 01 Oct 2026 09:00:00 +0530. Atom uses ISO form, for example 2026-10-01T09:00:00+05:30. Other formats may be read by some apps and ignored by others.

What is a guid and why must it be unique?+

The guid is the permanent ID of a post. Readers use it to decide whether they have already shown an item. If two items share one, one may never appear. If it changes, readers may show an edited post as new.

Does it check Podcast or RSS 1.0 feeds?+

It checks the core RSS 2.0 and Atom rules. Podcast-specific tags and RSS 1.0 (RDF) are not checked in detail.

Is my feed sent anywhere?+

No. The feed is read inside your browser.

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