Ensure your website meets Accelerated Mobile Pages standards. Validate your HTML code for errors and optimize for Google's mobile search.
Note: URL validation uses an external check to bypass CORS restrictions.
Enter a URL or paste code to see validation results.
Validation Status
Follow the checklist to fix compatibility issues.
In the modern mobile-first era, speed is everything. Accelerated Mobile Pages (AMP) is an open-source HTML framework developed by Google to help webpages load near-instantly on mobile devices. However, AMP has very strict technical requirements. If your code contains even one prohibited tag or missing script, Google will not recognize it as a valid AMP page. Using an AMP Validator is the only way to ensure your hard work translates into faster load times and better search visibility.
Search Engine Optimization (SEO) is no longer just about keywords; it's about user experience. Google uses Core Web Vitals as a ranking signal, and AMP is designed specifically to ace these metrics. By using our tool to test if a page is AMP compatible, you are effectively auditing your site's mobile performance. Valid AMP pages often receive a "lightning bolt" icon in search results, which can significantly improve your click-through rate (CTR).
Beyond speed, AMP pages are served from the Google AMP Cache. This means your server load is reduced, and users get the content from a server geographically closer to them. To ensure your metadata is also optimized, you might want to use our Meta Description Length Checker alongside this validator.
Most developers run into issues because they treat AMP like standard HTML. Here are the most frequent errors our AMP error checker identifies:
<img> instead of <amp-img> or including custom JavaScript that isn't wrapped in an AMP component.!important are strictly forbidden.While AMP was originally for news publishers, it is now widely used for e-commerce and blogs. If you are serious about mobile traffic, you should also perform a Mobile Friendly Test to ensure your non-AMP pages are also performing well. Our validator acts as a quick "sanity check" for your developers during the coding phase, allowing them to catch errors before the page is even indexed by Google.
Validation is not a one-time task. As you update your site's design or add new features, your AMP compatibility can break. Regularly using an AMP validator online ensures that your mobile users always enjoy the fastest possible experience. Remember, a valid AMP page is a fast page, and a fast page is a high-converting page.
If a page fails validation, Google will still index it as a standard mobile page, but it will not be eligible for the AMP Cache or special AMP-only search features like the Top Stories carousel. It essentially loses all the performance benefits of the AMP framework.
Standard <script> tags are prohibited in AMP. However, you can use custom JS via the <amp-script> component, which runs your code in a Web Worker to ensure it doesn't block the main thread and slow down page rendering.
While Google no longer requires AMP for the Top Stories carousel, it remains a powerful tool for achieving perfect Core Web Vitals scores with minimal effort. For many publishers, it is still the easiest way to guarantee a fast mobile experience.