API & MCP

Schema Markup Checker

Scans the current page for JSON-LD/microdata and flags fields that don't match Google's structured data guidelines.

As of July 2026, Schema Markup Checker has users in the Developer Tools category.

Usersno change0%
Ratingno change0%
— reviews
Reviewsno change0%
Version
1.1.0
Manifest V3

History

1 snapshots

Tracking since Jul 11, 2026.

Not enough history yet for this metric — the chart fills in as we collect more snapshots.
View as table
DateUsersRatingReviewsVersion
Jul 11, 20261.1.0
Now1.1.0

Permissions & access

Permissions
activeTabscripting
Host access
None declared

Screenshots

Schema Markup Checker screenshot 1

About

Schema Markup Checker scans any webpage for structured data — JSON-LD and microdata — and shows you exactly what schema types are present, plus any missing required or recommended fields for SEO rich results.
Instantly see:
• Which schema types (Product, Article, Review, FAQ, Breadcrumbs, and more) are on the page
• Missing required fields that could block rich results in Google Search
• Missing recommended fields that improve how your content appears in search
• Common copy-paste mistakes, like a property from one schema type left on the wrong type
• Raw JSON-LD data for any page, viewable in one click
• A direct link to Google's Rich Results Test for official validation
No account, no sign-up, no data sent anywhere. Everything runs locally in your browser, and only scans when you click the icon.

Technical

Version
1.1.0
Manifest
V3
Size
32.16KiB
Min Chrome
88
Languages
1
Featured
No

Metadata

ID
ebakjfoaakffepijglkbegocpcehhoap
Developer ID
u05338f30d0f7331ed2db34e70cf2569b
Developer Email
[email protected]
Created
Jul 10, 2026
Last Updated (Store)
Jul 10, 2026
Last Scraped
Jul 11, 2026
Website
Support URL

Data sourced from the Chrome Web Store · last verified Jul 11, 2026.