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Rich Results & Schema Validator

Chrome extension by Semwebs · Productivity · Developer

A Chrome extension in Productivity · Developer with 45 users, barely installed. Audience over the last 30 days: +3.

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

What the developer says, and 2 screenshots

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

Users
45
Rating
not rated yet
Users, last 30 days
+3
Version
1.3.9
Updated in the store
2026-09-29
Published
2025-11-16
Manifest
V3
Browser access
5 permissions, 1 site pattern

How it has moved

Users
+3 since 15.10
40-45 · 14 readings
  1. 2026-10-1941
  2. 2026-10-2142
  3. 2026-10-2240
  4. 2026-10-2342
  5. 2026-10-2441
  6. 2026-10-2743
  7. 2026-10-2942
  8. 2026-11-0143
  9. 2026-11-0642
  10. 2026-11-0742
  11. 2026-11-0841
  12. 2026-11-0943
  13. 2026-11-1045
  14. 2026-11-1445
Users
+6 since 31.08
37-45 · 30 readings
2026-09-12: released 1.3.52026-09-14: released 1.3.62026-09-18: released 1.3.72026-09-30: released 1.3.9
  1. 2026-08-3139
  2. 2026-09-0240
  3. 2026-09-0438
  4. 2026-09-0539
  5. 2026-09-0737
  6. 2026-09-0841
  7. 2026-09-1740
  8. 2026-09-2039
  9. 2026-09-2237
  10. 2026-09-2538
  11. 2026-09-2639
  12. 2026-09-2838
  13. 2026-10-0440
  14. 2026-10-0843
  15. 2026-10-0944
  16. 2026-10-1042
  17. 2026-10-1941
  18. 2026-10-2142
  19. 2026-10-2240
  20. 2026-10-2342
  21. 2026-10-2441
  22. 2026-10-2743
  23. 2026-10-2942
  24. 2026-11-0143
  25. 2026-11-0642
  26. 2026-11-0742
  27. 2026-11-0841
  28. 2026-11-0943
  29. 2026-11-1045
  30. 2026-11-1445

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.

  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2
  • Schedule work to run later alarms
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 1.3.9
  2. Version 1.3.7
  3. Version 1.3.6
Show the remaining 1
  1. Version 1.3.5

What changed recently

  1. Package size changed
  2. Released version 1.3.9 (was 1.3.7)
  3. Package size changed
Show the remaining 5
  1. Released version 1.3.7 (was 1.3.6)
  2. Package size changed
  3. Released version 1.3.6 (was 1.3.5)
  4. Package size changed
  5. Released version 1.3.5 (was 1.3.4)

The publisher

Semwebs publishes 3 listings we track, 55 users between them.

  1. Broken Link Checker Semwebs · Productivity · Developer · published 2025-08-20 7 users
  2. OG Lens Semwebs · Productivity · Tools · published 2026-05-19 3 users

Like this one

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

  1. Schema Inspector — Structured Data & JSON-LD Validator Describes nearly the same job, smaller audience 19 users
  2. Schema Preview – Structured Data Analyzer Describes nearly the same job, smaller audience 30 users
  3. Rich Results Validator for SEO Describes nearly the same job, smaller audience 232 users ★ 4.5
  4. ToolBreezy.com - Schema Markup Validator & Rich Results Test Describes nearly the same job, smaller audience 19 users ★ 5.0
  5. Schema Markup Validator and Checker by FullSchema Describes nearly the same job, smaller audience 8 users ★ 5.0

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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Users and rating on Ext Ops Panel

Markdown

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

HTML

<a href="https://extops.dev/extensions/mjelpiiiblmledfahehngkojblmdgldg"><img src="https://extops.dev/extensions/mjelpiiiblmledfahehngkojblmdgldg/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 2026-11-10. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built