SearchLaneSchema markup validator
Enter a page to see its JSON-LD structured data — every schema type, broken blocks, missing required fields and what is worth adding.
| Article | Valid |
| BreadcrumbList | Valid |
| Product | No offers |
| Worth adding | author, image |
Example result, not real data
What it shows
- Every itemAll JSON-LD blocks on the page, including @graph, with the schema.org type of each item.
- ErrorsJSON that does not parse, items without @type and required fields that are missing.
- Worth addingRecommended properties such as author, datePublished or image that help rich results and AI answers.
How to use the Schema Markup Validator
- Paste a page addressTest the page type you care about: an article, a product, the home page.
- Read the errors firstBroken JSON and missing required fields stop the markup from working at all.
- Add what is worth addingRecommended fields such as author, dates and images make the item more useful to search engines and AI tools.
Why it matters
Structured data is the plain, machine-readable version of your page: who wrote it, what it costs, when it was updated. Search engines use it for rich results, and AI tools use the same facts when they decide what to quote.
Schema breaks silently. A theme update, a plugin or a missing comma can turn valid markup into nothing, and the page looks exactly the same to a human.
Guide
Questions
What is schema markup?
Structured data in the schema.org vocabulary that describes a page in a way machines can read: this is a product with this price, this article has this author.
Does schema markup help ranking?
Not directly. It makes a page eligible for rich results such as stars, prices and breadcrumbs, which can earn more clicks, and it helps search engines and AI tools understand the page.
JSON-LD, Microdata or RDFa?
Google recommends JSON-LD: a single script block that is easy to add and maintain. This validator checks JSON-LD and only counts Microdata and RDFa.
Which schema types matter most?
Organization and WebSite on the home page, Article or BlogPosting on posts, Product on product pages, BreadcrumbList everywhere, and FAQPage where you really answer questions.
More free tools
| H1 Coffee grinder guide | One H1 |
| H2 Burr or blade? | |
| H4 Steel burrs | Skips H3 |
| H2 Prices |
| Canonical tag | example.com/guide |
| Points to itself | Yes |
| Absolute URL | Yes |
| Robots | index, follow |
| High Broken internal links | Search |
| Medium No author on articles | AI answers |
| Medium Duplicate titles | Search |