Developer Tools
Growth signalUnknownMedium-risk permissions
Schema Markup Checker icon

Schema Markup Checker

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

Users5Current public install base
Rating5.0Store average score
Reviews3Public review volume
Manifest versionV3Extension platform version
7-day growth+4Net users gained this week
7-day growth rate+400%Relative weekly velocity
Preview

Schema Markup Checker Media preview

1 assets
Trend

User growth trend

Review user movement across collected snapshots.

User Growth Over Time

123452026年7月13日2026年7月16日2026年7月19日Latest: 5
Rating trend

7-day rating trend

View collected rating snapshots from the latest 7-day window to assess rating stability.

7-day rating change

Start
5.00
Latest
5.00
7-day rating change
0.00
4.904.955.005.055.102026年7月13日2026年7月16日2026年7月19日Latest: 5.00
2026年7月13日2026年7月19日
Growth overview

Daily, weekly, and monthly growth

Compare 1-day, 7-day, and 30-day net growth and growth rate.

1-day growthGrowing
+1+25%
7-day growthGrowing
+4+400%
30-day growthNo data
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Technical snapshot

Version, languages, and crawl freshness

Review publication date, version, supported languages, and crawl timestamps.

Version1.1.0
ManifestV3
Size32.16KiB
Languages1English
Published
Store updated
Last crawled
English
Overview

Product summary

Review the store description, core capabilities, and common use cases.

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

Reviews

Recent review snapshot

Inspect the latest comments and rating distribution.

Store average score5.0Chrome Web Store aggregate rating, including ratings without synced review text
Synced text average5.0Average computed only from synced review bodies below
Reviews with text2Synced review bodies
Total ratings / reviews3Chrome Web Store public rating/review count

Store average score: 5.0. The bars below are calculated from synced review text only, so they may be empty for extensions that have public ratings but no synced comments yet.

5★
2
4★
0
3★
0
2★
0
1★
0
Razin Kang2026年7月13日
5

Very good extension.

Version 1.1.0Language en
Panisara Ketsri2026年7月13日
5

Very good extension, really easy to use.

Version 1.1.0Language en
1 helpful · 0 not helpful
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