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robots.txt emulator

Chrome extension by Valentin · Productivity · Developer

A Chrome extension in Productivity · Developer with 48 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 4 screenshots

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

Users
48
Rating
not rated yet
Users, last 14 days
+4
Version
3.1
Updated in the store
2026-06-29
Published
2018-10-06
Manifest
V3
Browser access
6 permissions, 1 site pattern

How it has moved

Users
+4 since 01.09
44-50 · 9 readings
  1. 2026-09-0144
  2. 2026-09-0248
  3. 2026-09-0447
  4. 2026-09-0648
  5. 2026-09-0847
  6. 2026-09-0950
  7. 2026-09-1049
  8. 2026-09-1348
  9. 2026-09-1448
Users
+4 since 01.09
44-50 · 9 readings
  1. 2026-09-0144
  2. 2026-09-0248
  3. 2026-09-0447
  4. 2026-09-0648
  5. 2026-09-0847
  6. 2026-09-0950
  7. 2026-09-1049
  8. 2026-09-1348
  9. 2026-09-1448

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.

  • See the address and title of every tab you have open tabs
  • Watch the network requests your browser makes webRequest
  • Block or redirect requests by rules it declares in advance declarativeNetRequest
Show the remaining 3
  • Run its own code on the pages it can access scripting
  • See when you navigate between pages webNavigation
  • 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

Valentin publishes 7 listings we track, 92k users between them.

  1. gs location changer Valentin · Productivity · Developer · published 2017-11-26 90k users ★ 4.0
  2. GSC crawl stats downloader Valentin · Productivity · Developer · published 2022-04-07 2k users ★ 4.8
  3. Copy Main Content Valentin · Productivity · Tools · published 2026-04-01 88 users
Show 3 more from this publisher
  1. simcheck Valentin · Productivity · Tools · published 2024-08-27 70 users
  2. blue dragon Valentin · Productivity · Developer · published 2026-06-18 23 users ★ 5.0
  3. Search Analytics alternative Valentin · Productivity · Developer · published 2015-08-20 12 users

Like this one

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

  1. Robots.TXT Radar Describes nearly the same job, smaller audience 137 users
  2. Live robots.txt Checker Describes nearly the same job, smaller audience 28 users ★ 5.0
  3. Robots.txt Tester Describes nearly the same job, smaller audience 100 users ★ 5.0
  4. Simple Robots.txt Opener Describes nearly the same job, smaller audience 3 users (last published figure)
  5. robots.txt viewer Describes nearly the same job, smaller audience 2k users ★ 4.5

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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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.