3. AMP Web Validator
The AMP Web Validator, available at validator.ampproject.org, provides a simple web UI to test the validity of your AMP pages.
To use the tool, you enter an AMP URL, or copy/paste your source code, and the web validator displays error messages between the lines. You can make edits directly in the web validator which will trigger revalidation, letting you know if your proposed tweaks will fix the problem.
What’s your favourite way to check the status of your AMP Pages? Share your feedback in the comments below or on our Google Webmasters Google+ page. Or as usual, if you have any questions or need help, feel free to post in our Webmasters Help Forum.
Posted by Tomo Taylor, AMP Community Manager