How to Use the Schema Markup Validator
How to Use the Schema Markup Validator
Free tool that validates schema markup on any page and shows which rich results it qualifies for.
Paste a URL or JSON-LD to validate schema markup and see which rich results it qualifies for — free, no signup — LemRank.
Frequently asked questions
Is JSON-LD better than microdata?
Yes — Google recommends JSON-LD explicitly. It's easier to add, keeps markup separate from content, and is easier to maintain.
Which schema types have the biggest SEO impact?
FAQPage, HowTo, Article, Product, and Review historically unlock the most rich-result real estate. Local Business is critical for physical locations.
Can invalid schema hurt my rankings?
Invalid schema won't hurt normal rankings, but it will disqualify you from rich results. Fabricated or misleading schema (e.g. fake reviews) is a manual-action risk.