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Website SEO Checker

Chrome extension by Boosta · Productivity · Developer

  • Featured
  • Established publisher

A Chrome extension in Productivity · Developer with 100 000 users, a widely installed extension.

No site access is declared in the manifest, so it cannot read the pages you open on its own.

What the developer says, and 5 screenshots

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

Users
100 000
Rating
4.6 (220 ratings)
Users, last 18 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
4.4.1
Updated in the store
2026-03-20
Published
2017-11-22
Manifest
V3
Browser access
3 permissions

How it has moved

Users
unchanged since 31.08
100k · 3 readings
  1. 2026-08-31100k
  2. 2026-09-07100k
  3. 2026-09-17100k
Rating
unchanged since 31.08
reviewsrating 4.56 · 3 readings
  1. 2026-08-31reviews221rating4.56
  2. 2026-09-07reviews220rating4.56
  3. 2026-09-17reviews220rating4.56
Users
unchanged since 31.08
100k · 3 readings
  1. 2026-08-31100k
  2. 2026-09-07100k
  3. 2026-09-17100k
Rating
unchanged since 31.08
reviewsrating 4.56 · 3 readings
  1. 2026-08-31reviews221rating4.56
  2. 2026-09-07reviews220rating4.56
  3. 2026-09-17reviews220rating4.56

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

No site access is declared in the manifest, so it cannot read the pages you open on its own.

  • Sign you in with a Google account identity
  • Act on the current tab, but only after you click it activeTab
  • 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

Boosta publishes 2 listings we track, 109k users between them. Listed website: sitechecker.pro.

  1. SEO Content Checker: Plagiarism & Readability Boosta · Productivity · Developer · published 2018-09-20 9k users ★ 3.4

Like this one

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

  1. SEO Inspector Describes nearly the same job, smaller audience 49 users ★ 5.0
  2. Minorank SEO Inspector Describes nearly the same job, smaller audience 11 users
  3. SEO Quick Insights by AIO.com.ai Describes nearly the same job, smaller audience 3 users
  4. Web Authority - SEO Analyzer & Page Intelligence Tool Describes nearly the same job, smaller audience 21 users ★ 5.0
  5. SEO Page Analyzer by Tooliofy Describes nearly the same job, smaller audience 3 users (last published figure)

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.