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Free Schema Markup Validator
Paste JSON-LD or full HTML and validate Schema.org markup. We flag missing required fields, syntax errors, and ineligible-for-rich-results blocks.
What this tool checks
Validates Article, Product, FAQ, BreadcrumbList, Organization, Recipe, Event, Course
Highlights required vs recommended fields per Schema.org type
JSON-LD syntax error detection with exact line numbers
Rich-results eligibility check (Google's criteria)
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Sign up freeRelated SEO issues we'll catch in a full audit
Missing Meta Description
What a missing meta description means for SEO, why it lowers click-through rate, and how to fix it on any platform in under 2 minutes.
Meta Description Too Long
Meta descriptions over 160 characters get truncated in search results. Here's how to shorten them without losing the message.
Meta Description Too Short
Descriptions under 50 characters tell Google you didn't write one on purpose. Here's how to expand without padding.
Duplicate Meta Descriptions
Multiple pages sharing the same meta description signal thin or templated content. Here's how to detect and fix duplicates.
Missing <title> Tag
Pages without a title tag fall back to URL or domain in search results. Here's how to add one in any framework.
Title Tag Too Long
Titles over 60 characters get truncated. Here's how to shorten without losing the keyword.
Duplicate Title Tags
Multiple pages with identical titles compete with each other in search. Here's how to deduplicate.
Missing H1 Tag
Pages without an H1 lose a key topical signal. Here's why one H1 per page matters and how to add it correctly.
Multiple H1 Tags on One Page
Multiple H1s dilute the topical signal. Here's how to consolidate to one.
FAQ
Is this the same as Google's Rich Results Test?
Similar, we validate the same Schema.org rules. Google's test also previews how rich results render; ours focuses on validation speed (instant, no rate limits).
Which schema types are supported?
All Schema.org types. We have enhanced validation for the 20+ types Google uses for rich results.