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Robots.txt Checker - cmlabs SEO Tools

Chrome extension by cmlabs Developer · Productivity · Developer

  • Established publisher

A Chrome extension in Productivity · Developer with 169 users, barely installed. Audience over the last 30 days: -7.

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
169
Rating
5.0 (3 ratings)
Users, last 30 days
-7
Rating, last 30 days
Steady over 30 days
Version
1.0.1
Updated in the store
2024-05-16
Published
2024-05-13
Manifest
V3
Browser access
2 permissions

How it has moved

Users
-7 since 02.10
166-177 · 18 readings
  1. 2026-10-04177
  2. 2026-10-08173
  3. 2026-10-09172
  4. 2026-10-10170
  5. 2026-10-13166
  6. 2026-10-16174
  7. 2026-10-18173
  8. 2026-10-19177
  9. 2026-10-20175
  10. 2026-10-21176
  11. 2026-10-22175
  12. 2026-10-23171
  13. 2026-10-24168
  14. 2026-10-25169
  15. 2026-10-26171
  16. 2026-10-29172
  17. 2026-10-30169
  18. 2026-10-31169
Rating
unchanged since 02.10
reviewsrating 5.00 · 18 readings
  1. 2026-10-04reviews3rating5.00
  2. 2026-10-08reviews3rating5.00
  3. 2026-10-09reviews3rating5.00
  4. 2026-10-10reviews3rating5.00
  5. 2026-10-13reviews3rating5.00
  6. 2026-10-16reviews3rating5.00
  7. 2026-10-18reviews3rating5.00
  8. 2026-10-19reviews3rating5.00
  9. 2026-10-20reviews3rating5.00
  10. 2026-10-21reviews3rating5.00
  11. 2026-10-22reviews3rating5.00
  12. 2026-10-23reviews3rating5.00
  13. 2026-10-24reviews3rating5.00
  14. 2026-10-25reviews3rating5.00
  15. 2026-10-26reviews3rating5.00
  16. 2026-10-29reviews3rating5.00
  17. 2026-10-30reviews3rating5.00
  18. 2026-10-31reviews3rating5.00
Users
+2 since 31.08
160-177 · 32 readings
  1. 2026-08-31167
  2. 2026-09-02170
  3. 2026-09-06160
  4. 2026-09-08166
  5. 2026-09-09165
  6. 2026-09-10166
  7. 2026-09-13167
  8. 2026-09-15169
  9. 2026-09-17174
  10. 2026-09-21173
  11. 2026-09-22174
  12. 2026-09-25175
  13. 2026-09-26177
  14. 2026-09-28176
  15. 2026-10-04177
  16. 2026-10-08173
  17. 2026-10-09172
  18. 2026-10-10170
  19. 2026-10-13166
  20. 2026-10-16174
  21. 2026-10-18173
  22. 2026-10-19177
  23. 2026-10-20175
  24. 2026-10-21176
  25. 2026-10-22175
  26. 2026-10-23171
  27. 2026-10-24168
  28. 2026-10-25169
  29. 2026-10-26171
  30. 2026-10-29172
  31. 2026-10-30169
  32. 2026-10-31169
Rating
unchanged since 31.08
reviewsrating 5.00 · 32 readings
  1. 2026-08-31reviews3rating5.00
  2. 2026-09-02reviews3rating5.00
  3. 2026-09-06reviews3rating5.00
  4. 2026-09-08reviews3rating5.00
  5. 2026-09-09reviews3rating5.00
  6. 2026-09-10reviews3rating5.00
  7. 2026-09-13reviews3rating5.00
  8. 2026-09-15reviews3rating5.00
  9. 2026-09-17reviews3rating5.00
  10. 2026-09-21reviews3rating5.00
  11. 2026-09-22reviews3rating5.00
  12. 2026-09-25reviews3rating5.00
  13. 2026-09-26reviews3rating5.00
  14. 2026-09-28reviews3rating5.00
  15. 2026-10-04reviews3rating5.00
  16. 2026-10-08reviews3rating5.00
  17. 2026-10-09reviews3rating5.00
  18. 2026-10-10reviews3rating5.00
  19. 2026-10-13reviews3rating5.00
  20. 2026-10-16reviews3rating5.00
  21. 2026-10-18reviews3rating5.00
  22. 2026-10-19reviews3rating5.00
  23. 2026-10-20reviews3rating5.00
  24. 2026-10-21reviews3rating5.00
  25. 2026-10-22reviews3rating5.00
  26. 2026-10-23reviews3rating5.00
  27. 2026-10-24reviews3rating5.00
  28. 2026-10-25reviews3rating5.00
  29. 2026-10-26reviews3rating5.00
  30. 2026-10-29reviews3rating5.00
  31. 2026-10-30reviews3rating5.00
  32. 2026-10-31reviews3rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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
  • 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: cmlabs.co.

  1. Mobile Friendly Test - cmlabs Tools cmlabs Developer · Productivity · Developer · published 2024-10-08 4k users ★ 5.0
  2. Title & Meta Description Checkers - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-13 594 users ★ 5.0
  3. SSL Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-13 402 users ★ 5.0
Show 5 more from this publisher
  1. Heading Tags Checker - cmlabs Tools cmlabs Developer · Productivity · Developer · published 2024-10-19 342 users ★ 4.4
  2. HTTP Header Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-14 301 users ★ 5.0
  3. Pagespeed Test - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-14 287 users ★ 4.2
  4. Ping Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-14 234 users ★ 5.0
  5. Hreflang Checker - cmlabs SEO Tools cmlabs Developer · Productivity · Developer · published 2024-05-15 201 users ★ 5.0

Like this one

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

  1. Robots.txt Checker Describes nearly the same job, smaller audience 12 users
  2. Live robots.txt Checker Describes nearly the same job, smaller audience 31 users ★ 5.0
  3. Robots.txt Tester Describes nearly the same job, smaller audience 128 users ★ 5.0
  4. Robots.txt Checker Describes nearly the same job, smaller audience 45 users
  5. Robots.txt Validator 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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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/boiflndbjkenhmlbgbdnfebpooigmnkc/badge.svg)](https://extops.dev/extensions/boiflndbjkenhmlbgbdnfebpooigmnkc)

HTML

<a href="https://extops.dev/extensions/boiflndbjkenhmlbgbdnfebpooigmnkc"><img src="https://extops.dev/extensions/boiflndbjkenhmlbgbdnfebpooigmnkc/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-30. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built