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JSON-LD Structured Data Validator API

Validate a page's schema.org JSON-LD, as JSON

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Give it a page URL, or paste JSON-LD or HTML, and get a JSON report on the schema.org structured data: every JSON-LD block is parsed and checked for @context, @type, required and recommended properties of common rich-result types and typical value mistakes. Coded issues with JSON paths, a grade (A+ to F) and a score out of 100. For SEO audits and CI gates.

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PH · launched Oct 18, 2026 · 1 upvote (top 67%)

Similar launches

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Could you build this?

Yes The core is parsing JSON-LD blocks and checking them against documented schema.org and rich-result property requirements, which is standard rules-engine and API work a solo builder can vibe-code.

Competitors

Other products that read as similar to this one : 175 launches clear the similarity bar, closest 8 shown.

Attention rank: #69 of 176 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).

Launched 351 days after the earliest competitor.

Other launches for this product

More details
External ID
1282689
Company
n/a
Product
JSON-LD Structured Data Validator API
Website domain
producthunt.com
Cohort
n/a
Upvotes percentile
0.33
All tags
API
AI summary
schema markup validation api for developers
Manually corrected
No