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ECGO – 楽天RMS自動化・SEO分析ツール

Chrome extension by ec-masters-apps · Productivity · Workflow

A Chrome extension in Productivity · Workflow with 10 000 users, an established extension.

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

What the developer says, and 5 screenshots

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

Users
10 000
Rating
4.9 (329 ratings)
Users, last 18 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
4.6.3
Updated in the store
2026-09-09
Published
2017-09-01
Manifest
V3
Browser access
8 permissions, 1 site pattern

How it has moved

Users
unchanged since 01.09
10k · 2 readings
2026-09-09: released 4.6.3
  1. 2026-09-0110k
  2. 2026-09-1810k
Rating
unchanged since 01.09
reviewsrating 4.95 · 2 readings
2026-09-09: released 4.6.3
  1. 2026-09-01reviews329rating4.95
  2. 2026-09-18reviews329rating4.95
Users
unchanged since 01.09
10k · 2 readings
2026-09-09: released 4.6.3
  1. 2026-09-0110k
  2. 2026-09-1810k
Rating
unchanged since 01.09
reviewsrating 4.95 · 2 readings
2026-09-09: released 4.6.3
  1. 2026-09-01reviews329rating4.95
  2. 2026-09-18reviews329rating4.95

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.

  • Block or redirect requests by rules it declares in advance declarativeNetRequest
  • See which of its blocking rules matched declarativeNetRequestFeedback
  • Block or redirect requests on the sites it can access declarativeNetRequestWithHostAccess
Show the remaining 5
  • Run its own code on the pages it can access scripting
  • Schedule work to run later alarms
  • Open a panel beside the page sidePanel
  • Store data in your browser storage
  • Store data in your browser without the usual size limit unlimitedStorage

The full permission history for this extension

Version history

  1. Version 4.6.3

What changed recently

  1. Store description rewritten
  2. Released version 4.6.3 (was 4.6.2)

The publisher

ec-masters-apps.

Like this one

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

  1. Rakurip Walk (ラクリプウォーク)｜楽天RMS業務効率化・分析・スマホ表示AIツール Describes nearly the same job, smaller audience 916 users ★ 4.9
  2. EC Scope 楽天・Yahoo! SEO/AIO 商品最適化・構造Visualizer Describes nearly the same job, smaller audience 22 users
  3. EC Tracking 楽天・Amazon・Yahoo! 検索順位 ランキング サジェスト トラッカー Describes nearly the same job, smaller audience 81 users ★ 5.0
  4. 売れるくん - EC分析ツール Describes nearly the same job, smaller audience 5 users
  5. EC Catcher 楽天・Amazon・Yahoo! 商品分析 在庫・売上推論 アナライザー Describes nearly the same job, smaller audience 133 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.

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.

See what the panel does

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.