Tool · paste · active v1
JSON-LD validator
Rich results start with typed markup. Paste a JSON-LD block and see if it would pass the article and breadcrumb checks — entirely in your browser.
What it checks
Validates a pasted JSON-LD block for article type, headline and breadcrumb trail.
Recognized article type (Article / BlogPosting / NewsArticle), non-empty headline, unbroken BreadcrumbList positions from 1.
How verdicts work
pass means typed markup with a matching headline and a continuous crumb trail; untyped blocks never qualify — they just never fail loudly.
Official source: Search Central, structured data · Rule: jsonld-article v4
Example output
Type Article, headline present, all required fields found
Explained: Article structured-data check
Related tools
- llms.txt checker — Check your llms.txt for AI crawlers
- robots.txt tester — Validate robots.txt syntax and Sitemap pointer