Validate JSON-LD structured data and test rich result eligibility. Free, no account.
Schema markup is code added to a page's head section that tells search engines what the content means rather than just what it says. A page with a Product schema tells Google the item's price, availability, and rating. A page with FAQPage schema tells Google those heading-and-paragraph pairs are questions and answers, not just headings.
The code uses the Schema.org vocabulary in JSON-LD format, which Google recommends. It sits inside a script tag and does not change how the page looks. It adds a machine-readable layer on top of the human-readable content.
| Type | Pages to use it on | Rich result it enables |
|---|---|---|
| Article | Blog posts, news articles, guides | Headline with date in search results |
| FAQPage | Pages with Q&A content | FAQ accordion in search results |
| HowTo | Step-by-step instructions | Step cards in search results |
| WebApplication | Software tools and web apps | App details in search results |
| BreadcrumbList | Any page with navigation structure | Breadcrumb path in search results |
| Product | E-commerce and product pages | Price, rating, availability in results |
| LocalBusiness | Physical location pages | Map and contact in knowledge panel |
LLMs use structured data to extract facts more reliably than parsing prose. A product page without schema requires an AI system to infer the price from the text. A page with Product schema states it in a format the system can trust. The same applies to FAQPage schema: explicit question-answer pairs are easier to extract and cite than prose paragraphs.
This does not mean schema guarantees your content will be cited. A page that is both well-written and well-structured is easier for AI systems to process than an equally well-written page with no schema at all.
The validator fetches the live HTML of a URL, extracts all JSON-LD blocks, and checks them for errors against Schema.org types. It reports which schema types are present, flags required properties that are missing, and shows warnings for properties that are not required but are expected for rich results.
Free, with no account required. No limit on how many URLs you can check.
Schema does not directly boost rankings. What it does is make a page eligible for rich results. Rich results, such as FAQ accordions and How-to steps, get higher click-through rates than standard listings. The indirect effect on traffic can be significant, but structured data is not a ranking signal in the way backlinks or content quality are.
A few common reasons. The schema may have errors that disqualify it. Google may not have crawled the page since you added it. Some rich result types only appear for certain queries or in certain countries. Google does not guarantee rich results even for pages with valid schema. This validator catches errors. For everything else, use Google Search Console's Rich Results report.
It does help. AI systems use structured data to extract facts reliably. A page with FAQPage schema gives an AI a clean list of questions and answers to pull from. A page with WebApplication schema describes the tool's features in a format built for machine reading. Pages with accurate, complete schema are easier to process and cite than pages without it, even when the prose content is identical.