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SchemaCheck — Schema Markup Checker & Open Graph Meta Tag Validator

Chrome extension by aaleksandr.ross · Productivity · Developer

  • Trader

A Chrome extension in Productivity · Developer with 244 users, barely installed. Audience over the last 30 days: +4.

Every site you visit. This extension can read and change the content of any page you open.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
244
Rating
5.0 (1 ratings)
Users, last 30 days
+4
Rating, last 30 days
Steady over 30 days
Version
1.0.0
Updated in the store
2026-04-01
Published
2026-04-01
Manifest
V3
Browser access
6 permissions, 1 site pattern

How it has moved

Users
+4 since 06.10
237-252 · 19 readings
  1. 2026-10-08237
  2. 2026-10-09238
  3. 2026-10-10238
  4. 2026-10-13241
  5. 2026-10-16245
  6. 2026-10-17247
  7. 2026-10-18245
  8. 2026-10-19250
  9. 2026-10-21245
  10. 2026-10-22248
  11. 2026-10-23252
  12. 2026-10-24247
  13. 2026-10-25248
  14. 2026-10-27250
  15. 2026-10-29250
  16. 2026-10-31248
  17. 2026-11-01247
  18. 2026-11-03244
  19. 2026-11-05244
Rating
unchanged since 06.10
reviewsrating 5.00 · 19 readings
  1. 2026-10-08reviews1rating5.00
  2. 2026-10-09reviews1rating5.00
  3. 2026-10-10reviews1rating5.00
  4. 2026-10-13reviews1rating5.00
  5. 2026-10-16reviews1rating5.00
  6. 2026-10-17reviews1rating5.00
  7. 2026-10-18reviews1rating5.00
  8. 2026-10-19reviews1rating5.00
  9. 2026-10-21reviews1rating5.00
  10. 2026-10-22reviews1rating5.00
  11. 2026-10-23reviews1rating5.00
  12. 2026-10-24reviews1rating5.00
  13. 2026-10-25reviews1rating5.00
  14. 2026-10-27reviews1rating5.00
  15. 2026-10-29reviews1rating5.00
  16. 2026-10-31reviews1rating5.00
  17. 2026-11-01reviews1rating5.00
  18. 2026-11-03reviews1rating5.00
  19. 2026-11-05reviews1rating5.00
Users
+32 since 31.08
212-252 · 33 readings
  1. 2026-08-31212
  2. 2026-09-02215
  3. 2026-09-04219
  4. 2026-09-07217
  5. 2026-09-08218
  6. 2026-09-13219
  7. 2026-09-15217
  8. 2026-09-17225
  9. 2026-09-20224
  10. 2026-09-22226
  11. 2026-09-25232
  12. 2026-09-27234
  13. 2026-09-28233
  14. 2026-10-04240
  15. 2026-10-08237
  16. 2026-10-09238
  17. 2026-10-10238
  18. 2026-10-13241
  19. 2026-10-16245
  20. 2026-10-17247
  21. 2026-10-18245
  22. 2026-10-19250
  23. 2026-10-21245
  24. 2026-10-22248
  25. 2026-10-23252
  26. 2026-10-24247
  27. 2026-10-25248
  28. 2026-10-27250
  29. 2026-10-29250
  30. 2026-10-31248
  31. 2026-11-01247
  32. 2026-11-03244
  33. 2026-11-05244
Rating
unchanged since 31.08
reviewsrating 5.00 · 33 readings
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-07reviews1rating5.00
  5. 2026-09-08reviews1rating5.00
  6. 2026-09-13reviews1rating5.00
  7. 2026-09-15reviews1rating5.00
  8. 2026-09-17reviews1rating5.00
  9. 2026-09-20reviews1rating5.00
  10. 2026-09-22reviews1rating5.00
  11. 2026-09-25reviews1rating5.00
  12. 2026-09-27reviews1rating5.00
  13. 2026-09-28reviews1rating5.00
  14. 2026-10-04reviews1rating5.00
  15. 2026-10-08reviews1rating5.00
  16. 2026-10-09reviews1rating5.00
  17. 2026-10-10reviews1rating5.00
  18. 2026-10-13reviews1rating5.00
  19. 2026-10-16reviews1rating5.00
  20. 2026-10-17reviews1rating5.00
  21. 2026-10-18reviews1rating5.00
  22. 2026-10-19reviews1rating5.00
  23. 2026-10-21reviews1rating5.00
  24. 2026-10-22reviews1rating5.00
  25. 2026-10-23reviews1rating5.00
  26. 2026-10-24reviews1rating5.00
  27. 2026-10-25reviews1rating5.00
  28. 2026-10-27reviews1rating5.00
  29. 2026-10-29reviews1rating5.00
  30. 2026-10-31reviews1rating5.00
  31. 2026-11-01reviews1rating5.00
  32. 2026-11-03reviews1rating5.00
  33. 2026-11-05reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Every site you visit. This extension can read and change the content of any page you open.

Show the remaining 3

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

aaleksandr.ross publishes 24 listings we track, 49k users between them.

  1. Save Image as Type — JPG PNG WebP PDF, Resize & Remove Background aaleksandr.ross · Productivity · Tools · published 2026-03-25 40k users ★ 4.9
  2. Auto-Delete Cookies on Tab Close — Cookie AutoDelete Alternative, Whitelist aaleksandr.ross · Make Chrome Yours · Privacy · published 2026-05-24 2k users ★ 4.6
  3. HEIC to JPG Converter — Batch HEIF, PNG, WebP & iPhone Photos aaleksandr.ross · Productivity · Tools · published 2026-05-08 1k users ★ 5.0
Show 5 more from this publisher
  1. Get YouTube Tags aaleksandr.ross · Productivity · Tools · published 2025-04-04 1k users ★ 4.4
  2. AccessCheck — Website Accessibility Checker, WCAG & ADA Audit aaleksandr.ross · Productivity · Tools · published 2026-03-28 626 users ★ 5.0
  3. CookieMate — Cookie Editor, Inspector & Manager, EditThisCookie Alt aaleksandr.ross · Productivity · Developer · published 2026-05-27 565 users
  4. RedirectCheck — URL & Website Redirect Checker 301 Chain Trace Status Code aaleksandr.ross · Productivity · Tools · published 2026-03-31 467 users ★ 5.0
  5. Readability Checker — Reading Level, Flesch-Kincaid & Writing Score aaleksandr.ross · Productivity · Tools · published 2026-03-28 347 users ★ 5.0

Like this one

Listings the catalog judges closest in what they say they do.

  1. Schema Inspector by Flowtrix Describes nearly the same job, smaller audience 13 users ★ 5.0
  2. Schema Markup Validator and Checker by FullSchema Describes nearly the same job, smaller audience 8 users ★ 5.0
  3. Schema Preview – Structured Data Analyzer Describes nearly the same job, smaller audience 25 users
  4. W24 SEO Inspector – Meta, Schema & Social Preview Describes nearly the same job, smaller audience 6 users
  5. Schema.org Extractor & Validator Describes nearly the same job, smaller audience 227 users

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/poeggliankfnfbldfjkgnohnbchjjoli/badge.svg)](https://extops.dev/extensions/poeggliankfnfbldfjkgnohnbchjjoli)

HTML

<a href="https://extops.dev/extensions/poeggliankfnfbldfjkgnohnbchjjoli"><img src="https://extops.dev/extensions/poeggliankfnfbldfjkgnohnbchjjoli/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-03. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built