Validate up to 20 AMP pages at once or paste raw HTML for instant client-side validation. Get detailed error reports with line numbers and severity levels.
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Get StartedAMP (Accelerated Mobile Pages) validation is the process of checking your AMP HTML against the official AMP specification to ensure your pages are valid. The AMP framework enforces strict rules about which HTML tags, CSS properties, and JavaScript libraries you can use. A valid AMP page loads instantly on mobile devices and is eligible for enhanced search features like Google's Top Stories carousel and rich result cards.
The AMP validator checks for over 100 different rule types, including required boilerplate code, forbidden elements, invalid attributes, correct use of AMP components, and proper document structure. Even a single error can cause the entire page to be marked as invalid AMP, removing it from AMP-specific search features.
Most websites have dozens or hundreds of AMP pages. Checking them one at a time is impractical. Common scenarios that break AMP validity across multiple pages include CMS updates that inject forbidden JavaScript, theme changes that add invalid CSS, plugin conflicts that insert non-AMP-compliant elements, or template modifications that remove required boilerplate tags. A single template change can invalidate every AMP page on your site.
Bulk validation lets you catch these site-wide issues instantly. By checking up to 20 URLs at once, you can verify that all your key AMP pages remain valid after deployments, identify patterns in errors across different page types, and prioritize fixes by severity level.
<style amp-boilerplate> and <noscript> tags in the head. Missing either one invalidates the page.<script> tags (except type="application/ld+json") are forbidden.<style amp-custom> tag. The !important qualifier and several CSS properties are restricted.<html amp> attribute, a canonical link, the AMP runtime script, and the correct viewport meta tag.<amp-img> or <amp-video> without loading their required scripts produces validation errors.Use this tool alongside our Schema Generator to add valid structured data to your AMP pages, and our SERP Previewer to optimize how your AMP results appear in search.
AMP (Accelerated Mobile Pages) is a web framework by Google that creates fast-loading mobile pages. While AMP is no longer a direct ranking factor, valid AMP pages still appear in special search features like Top Stories carousels and can significantly improve mobile page speed, which is a Core Web Vitals ranking signal.
Bulk AMP validation checks multiple URLs simultaneously against Google's AMP specification. For each URL, the validator fetches the page HTML and parses it against AMP rules, checking for required tags, forbidden elements, invalid attributes, and structural issues. Results include line numbers and severity levels so you can quickly locate and fix problems.
AMP errors are critical issues that prevent a page from being valid AMP, such as missing required tags or forbidden JavaScript. Warnings are non-critical issues that may indicate deprecated features or potential future compatibility problems. Fix all errors first, then address warnings.
Yes. Use the Paste HTML mode to validate AMP markup before publishing. It runs the official AMP validator entirely in your browser, so your HTML never leaves your machine. This is ideal for testing AMP templates during development before they go live.