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Website SEO Checker Tool

Chrome extension by rn53themes · Productivity · Developer

A Chrome extension in Productivity · Developer with 5 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 5 screenshots

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

Users
5
Rating
5.0 (2 ratings)
Users, last 19 days
+5
Rating, last 30 days
Not watched long enough to say
Version
3.3.0
Updated in the store
2026-09-28
Published
2026-09-20
Manifest
V3
Browser access
4 permissions, 1 site pattern

How it has moved

Users
+5 since 21.09
0-5 · 4 readings
2026-09-21: appeared in the store2026-09-21: released 3.1.22026-09-25: released 3.3.0
  1. 2026-09-210appeared in the storereleased 3.1.2
  2. 2026-09-253released 3.3.0
  3. 2026-10-085
  4. 2026-10-095
Rating
+5.00 since 21.09
reviewsrating 0.00-5.00 · 4 readings
2026-09-21: appeared in the store2026-09-21: released 3.1.22026-09-25: released 3.3.0
  1. 2026-09-21reviews0rating0.00appeared in the storereleased 3.1.2
  2. 2026-09-25reviews1rating5.00released 3.3.0
  3. 2026-10-08reviews2rating5.00
  4. 2026-10-09reviews2rating5.00
Users
+5 since 21.09
0-5 · 4 readings
2026-09-21: appeared in the store2026-09-21: released 3.1.22026-09-25: released 3.3.0
  1. 2026-09-210appeared in the storereleased 3.1.2
  2. 2026-09-253released 3.3.0
  3. 2026-10-085
  4. 2026-10-095
Rating
+5.00 since 21.09
reviewsrating 0.00-5.00 · 4 readings
2026-09-21: appeared in the store2026-09-21: released 3.1.22026-09-25: released 3.3.0
  1. 2026-09-21reviews0rating0.00appeared in the storereleased 3.1.2
  2. 2026-09-25reviews1rating5.00released 3.3.0
  3. 2026-10-08reviews2rating5.00
  4. 2026-10-09reviews2rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing 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
  • Sign you in with a Google account identity
  • See the email address of the signed-in Google account identity.email
Show the remaining 1
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 3.3.0 · Asked for more permissions (5, was 4)
  2. Version 3.1.2

What changed recently

  1. Store description rewritten
  2. Package size changed
  3. Asked for more permissions (5, was 4)
Show the remaining 6
  1. Renamed from "SEO & Accessibility Toolkit" to "Website SEO Checker Tool"
  2. Released version 3.3.0 (was 3.1.2)
  3. Package size changed
  4. Store description rewritten
  5. Released version 3.1.2 (was 3.1.1)
  6. Appeared in the store

The publisher

rn53themes. Listed website: rn53themes.net.

Like this one

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

  1. SEO Page Analyzer by Tooliofy Describes nearly the same job, smaller audience 2 users
  2. SEOraphim SEO Audit Tool Describes nearly the same job, smaller audience 17 users ★ 5.0
  3. teraSEO Describes nearly the same job, smaller audience 4 users ★ 5.0
  4. SEOSense – SEO Audit & Technical Analyzer Describes nearly the same job, smaller audience 9 users
  5. Ninety SEO Inspector 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.

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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.