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kunugi SEO Checker

Chrome extension by 株式会社クヌギ · Productivity · Tools

A Chrome extension in Productivity · Tools with 152 users, barely installed.

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

What the developer says, and 4 screenshots

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

Users
152
Rating
not rated yet
Users, last 15 days
+15
Version
4.2.0
Updated in the store
2026-07-03
Published
2026-03-09
Manifest
V3
Browser access
5 permissions, 2 site patterns

How it has moved

Users
+15 since 01.09
137-152 · 9 readings
  1. 2026-09-01137
  2. 2026-09-02142
  3. 2026-09-04147
  4. 2026-09-06149
  5. 2026-09-08147
  6. 2026-09-09144
  7. 2026-09-10149
  8. 2026-09-13152
  9. 2026-09-15152
Users
+15 since 01.09
137-152 · 9 readings
  1. 2026-09-01137
  2. 2026-09-02142
  3. 2026-09-04147
  4. 2026-09-06149
  5. 2026-09-08147
  6. 2026-09-09144
  7. 2026-09-10149
  8. 2026-09-13152
  9. 2026-09-15152

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once 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.

  • Watch the network requests your browser makes webRequest
  • Change what sites are allowed to do contentSettings
  • Act on the current tab, but only after you click it activeTab
Show the remaining 2
  • Open a panel beside the page sidePanel
  • Store data in your browser storage

The full permission history for this extension

What changed recently

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

The publisher

株式会社クヌギ publishes 3 listings we track, 265 users between them. Listed website: kunugi-inc.com.

  1. kunugi GSC Controller 株式会社クヌギ · Productivity · Tools · published 2026-03-16 76 users
  2. kunugi SERP Cache 株式会社クヌギ · Productivity · Tools · published 2026-03-24 37 users

Like this one

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

  1. SEO Peek Describes nearly the same job, smaller audience 100 users ★ 5.0
  2. SEO Pro Extension Describes nearly the same job, with a large installed audience 100k users ★ 4.8
  3. Ninety SEO Inspector Describes nearly the same job, smaller audience 2 users (last published figure)
  4. Highlighter SEO Describes nearly the same job, smaller audience 49 users ★ 5.0
  5. SEO Extension | Quick Website Inspector Describes nearly the same job, smaller audience 5 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.

Is this your extension?

Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.