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Mobile Friendly Test - cmlabs Tools

Chrome extension by cmlabs Developer · Productivity · Developer

A Chrome extension in Productivity · Developer with 4 000 users, a small but real audience.

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
4 000
Rating
5.0 (3 ratings)
Users, last 16 days
unchanged
Rating, last 30 days
Not watched long enough to say
Version
1.0.0
Updated in the store
2024-10-08
Published
2024-10-08
Manifest
V3
Browser access
4 permissions

How it has moved

Users
unchanged since 31.08
4k · 2 readings
  1. 2026-08-314k
  2. 2026-09-154k
Rating
unchanged since 31.08
reviewsrating 5.00 · 2 readings
  1. 2026-08-31reviews3rating5.00
  2. 2026-09-15reviews3rating5.00
Users
unchanged since 31.08
4k · 2 readings
  1. 2026-08-314k
  2. 2026-09-154k
Rating
unchanged since 31.08
reviewsrating 5.00 · 2 readings
  1. 2026-08-31reviews3rating5.00
  2. 2026-09-15reviews3rating5.00

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

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

  • See the address and title of every tab you have open tabs
  • Act on the current tab, but only after you click it activeTab
  • Declares commands
Show the remaining 1
  • 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

cmlabs Developer publishes 12 listings we track, 7k users between them. Listed website: tools.cmlabs.co.

  1. Title & Meta Description Checkers - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-13 585 users ★ 5.0
  2. SSL Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-13 420 users ★ 5.0
  3. Heading Tags Checker - cmlabs Tools cmlabs Developer · Productivity · Developer · published 2024-10-19 337 users ★ 4.4
Show 5 more from this publisher
  1. HTTP Header Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-14 294 users ★ 5.0
  2. Pagespeed Test - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-14 287 users ★ 4.2
  3. Ping Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-14 236 users ★ 5.0
  4. Hreflang Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-15 197 users ★ 5.0
  5. Technology Lookup - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-13 187 users ★ 5.0

Like this one

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

  1. Mobile-Friendly Tester Describes nearly the same job, smaller audience 29 users
  2. Pagespeed Test - cmlabs SEO Tools Describes nearly the same job, smaller audience 287 users ★ 4.2
  3. Mobile Lab: Responsive UX UI Checker Describes nearly the same job, smaller audience 11 users
  4. AI User Testing Agent Describes nearly the same job, smaller audience 63 users ★ 5.0
  5. Web Experience Analyzer Describes nearly the same job, smaller audience 3 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.