Valid AMP
- <html amp> + runtime script + boilerplate + canonical -> valid
web validator
AMP Essentials Validator
Check AMP-required markers (amp/⚡ on html, runtime script, boilerplate, canonical) client-side.
Results
Paste input and validate locally.- Status
- Ready when you validate.
- Details
- Ready when you validate.
- amp/⚡ attribute
- Ready when you validate.
- AMP runtime
- Ready when you validate.
- AMP boilerplate
- Ready when you validate.
- Canonical
- Ready when you validate.
- Issues
- Ready when you validate.
Rules & checks
Checks for amp/⚡ attribute on <html>.
Requires https://cdn.ampproject.org/v0.js runtime script.
Requires AMP boilerplate style tag.
Requires canonical link rel.
Runs entirely client-side; does not fetch resources.
When to use it
- QA AMP pages from CMS/templates
- Check AMP variants before launch
- Validate AMP exports from static site generators
Tips
- Include canonical pointing to the non-AMP page
- Keep AMP runtime and boilerplate untouched
Examples
Missing runtime
- No v0.js script -> flagged
Missing amp
- <html> without amp attribute -> flagged
FAQs
- Is anything uploaded?
- No. Validation is local and clears on refresh.
- Is this a full AMP spec check?
- No. This validates core markers; use full AMP validation tools for complete coverage.
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