Extension Tracker

SchemaCheck — Schema Markup Checker & Open Graph Meta Tag Validator

241 users Rated 5.00 from 1 rating Last updated 1 Apr 2026

By Northpine Labs LLC Live in the Chrome Web Store poeggliankfnfbldfjkgnohnbchjjoli Search Google ↗ Last checked 14 Oct 2026, 06:24 UTC

The listing

What the Chrome Web Store shows, as of the last check

Validate JSON-LD, Microdata & RDFa schema markup, Open Graph, Twitter Cards & meta tags. Google Rich Results checker. Free SEO tool.Summary from the listing
Developer
Northpine Labs LLC
Enhanced Safe Browsing
Trusted. What this means →
Category
Productivity › Developer Tools
First published
1 Apr 2026
Last updated
1 Apr 2026
Version
1.0.0
Size
210 KiB
Minimum Chrome
116
Languages
52 languages

Deutsch, English, Filipino, Indonesia, Kiswahili, Melayu, Nederlands, Tiếng Việt, Türkçe, català, dansk, eesti, español, français, hrvatski, italiano, latviešu, lietuvių, magyar, norsk, polski, português (Brasil), română, slovenčina, slovenščina, suomi, svenska, čeština, Ελληνικά, български, русский, српски, українська, עברית, اردو, العربية, فارسی, मराठी, हिन्दी, বাংলা, ਪੰਜਾਬੀ, ગુજરાતી, தமிழ், తెలుగు, ಕನ್ನಡ, മലയാളം, ไทย, አማርኛ, 中文（中国）, 中文（台灣）, 日本語, 한국어

Privacy policy
https://extkit.dev/schemacheck/policy
See Chrome Web Store page ↗ View its code or download CRX ↗
Users over time As shown on the Chrome Web Store
235240Tracking began 27 Sep 202627 Sep4 Oct11 Oct2026-09-27: 234 users2026-10-14: 241 users241235240Tracking began27 Sep4 Oct11 Oct2026-09-27: 234 users2026-10-14: 241 users241
Average rating
4.804.905.0027 Sep4 Oct11 Oct5.004.804.905.0027 Sep4 Oct11 Oct5.00
Number of ratings
127 Sep4 Oct11 Oct1127 Sep4 Oct11 Oct1
New version One point per check. Source: the extension's public Chrome Web Store listing.
Show the numbers
CheckedUsersRatingRatings
2026-10-142415.001
2026-09-272345.001
Users, 7 days
No change
since a week ago
Users, 30 days
No change
+0.0%
Rank
#47,132
by users, of 292,131 extensions
In its category
#4,151
of 30,442 in Developer Tools

What changed

Every change found on a check, newest first

No changes found since tracking began on 27 Sep 2026.

Developer history

Moves to another publisher account and new contact emails, newest first

No move to another account and no new contact email since tracking began on 27 Sep 2026.

We know contact emails only by a keyed hash, so they're never shown. Recent account and contact changes →

What it can access

From the extension's manifest, in plain language

Every websiteIt can read and change your data on all the sites you visit.
Sites
  • *://*/*Every website
Browser features
  • activeTabThe tab you're on, only after you click the extension
  • clipboardWriteChange what's in your clipboard
  • contextMenusAdd items to the right-click menu
  • scriptingRun scripts on sites it can reach
  • sidePanelShow a side panel
  • storageSave settings and data in your browser

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HEIC to JPG Converter — Batch HEIF, PNG, WebP & iPhone Photos933 5.004 Tools
CookieMate — Cookie Editor, Inspector & Manager, EditThisCookie Alt640 –– Developer Tools
AccessCheck — Website Accessibility Checker, WCAG & ADA Audit626 5.002 Tools
RedirectCheck — URL & Website Redirect Checker 301 Chain Trace Status Code465 5.002 Tools
Readability Checker — Reading Level, Flesch-Kincaid & Writing Score356 5.001 Tools
QuickSEO — SEO Checker & AI Visibility Audit Tool342 5.002 Tools
Save Articles to Read Later — Pocket Alternative & Reader View Mode311 4.502 Workflow & Planning
All 24 extensions by Northpine Labs LLC →

About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 14 Oct 2026, 06:24 UTC; next check around 15 Nov 2026.

How we collect the data

Cite this page

Citation
Extension Tracker. “SchemaCheck — Schema Markup Checker & Open Graph Meta Tag Validator” (poeggliankfnfbldfjkgnohnbchjjoli). Chrome Web Store data, last checked 2026-10-14. https://extensiontracker.com/extension/poeggliankfnfbldfjkgnohnbchjjoli. Accessed 2026-11-13.
BibTeX
@misc{extensiontracker_poeggliankfnfbldfjkgnohnbchjjoli,
  title   = {SchemaCheck — Schema Markup Checker & Open Graph Meta Tag Validator (poeggliankfnfbldfjkgnohnbchjjoli)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-10-14},
  url     = {https://extensiontracker.com/extension/poeggliankfnfbldfjkgnohnbchjjoli},
  urldate = {2026-11-13}
}

The data is free to reuse under CC BY 4.0.

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