For your Accelerated Mobile Pages (AMP) to work their magic, they need to be discoverable through valid URLs. An invalid AMP URL is a technical error that prevents Google and other platforms from recognizing and serving your lightning-fast AMP content. This is a critical issue that can completely negate your AMP implementation efforts, leaving your users with a slower experience and your site missing out on valuable mobile visibility.

Think of your AMP URL as the address to a special, high-speed lane on the information superhighway. If that address is written incorrectly, no one will be able to find it. This guide will walk you through the common causes of invalid AMP URLs and how to ensure your addresses are always correct. For a complete overview of AMP, see our AMP category page.

An illustration of a broken link, symbolizing the importance of fixing invalid AMP URLs.

Diagnosing the Detour: Common Causes of Invalid AMP URLs

An invalid AMP URL error typically arises from issues in the link tag that connects your canonical page to your AMP page. Here are the most common culprits:

  • Incorrect URL Formatting: The URL in the href attribute of the <link rel="amphtml"> tag must be a complete, absolute URL (e.g., `https://example.com/my-page/amp/`). Relative URLs (e.g., `/my-page/amp/`) are not allowed.
  • Disallowed Characters: The URL may contain characters that are not permitted, such as spaces or certain symbols. Ensure your URLs are properly encoded.
  • Fragment Identifiers: The use of fragment identifiers (#) in the AMP URL is often a source of errors. The AMP URL should point to the beginning of the document.
  • Invalid Domain or Path: The URL might point to a non-existent domain or a path that returns a 404 error. Ensure the URL is correct and the page is live.

The Roadmap to Recovery: Fixing Invalid AMP URLs

Fixing invalid AMP URLs is a straightforward process of validation and correction. Here’s how to get back on the right track:

  1. Identify the Invalid URLs: Use a tool like Creeper or Google Search Console to identify all pages with invalid AMP URLs.
  2. Validate with the AMP Test: For each invalid URL, use the official AMP Test tool. This will give you specific details about what’s wrong with the URL or the AMP page itself.
  3. Correct the `link` Tag: Based on the validation results, correct the `href` attribute in the `<link rel=”amphtml”>` tag on your canonical page. Ensure it’s an absolute, correctly formatted URL pointing to a valid AMP document.
  4. Resubmit for Validation: Once you’ve fixed the issue, you can request that Google re-validates your page through Google Search Console.

A valid AMP setup is a powerful asset for your mobile SEO strategy. By ensuring your AMP URLs are always correct, you can provide a superior user experience and reap the full benefits of the AMP framework. For more on the technical requirements of AMP, see the official documentation on AMP URLs.

An illustration of a checklist, symbolizing the importance of making sure your website is free of invalid AMP URLs.

Frequently Asked Questions

What makes an AMP URL invalid?

An AMP URL can be invalid for several reasons, including incorrect syntax, the use of disallowed characters, or problems with the URL’s fragment identifier (#). The URL must be correctly formatted and point to a valid AMP document.

How can I test my AMP URLs?

The best way to test your AMP URLs is with the official AMP Test tool from Google. It will validate your AMP markup and tell you if your page is eligible for Google’s AMP-related features.

Will an invalid AMP URL affect my regular page’s ranking?

An invalid AMP URL will not directly penalize your canonical non-AMP page. However, it means you will lose all the benefits of having an AMP version, such as potential inclusion in the ‘Top Stories’ carousel and the speed benefits of the AMP cache. It’s a significant missed opportunity.

Ready to fix your broken links? Start your Creeper audit today and see how you can improve your website’s AMP implementation.