---
title: "robots.txt viewer – Chrome extension stats, history and permissions"
description: "2,000 users, rated 4.50 by 8 people. Version 1.6.1, updated 2022-05-24. Requests 2 permissions."
url: "https://extensiontracker.com/extension/agckgmkiigllflmahknlkhhhhmchodcb"
---

# robots.txt viewer

Live in the Chrome Web Store.

- Users: 2,000
- Rating: 4.50 from 8 ratings
- Last checked: 2026-09-26 21:44 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #14,553 of 264,703 live extensions
- Rank in Developer Tools: #1,275 of 27,615

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

> look into a robots.txt file on websites with a single click.

- Extension ID: `agckgmkiigllflmahknlkhhhhmchodcb`
- Developer: [Nico Hemkes](https://extensiontracker.com/developer/u3c67d281f433b639d8108b623516c4a0)
- Category: [Productivity › Developer Tools](https://extensiontracker.com/category/productivity/developer)
- First published: 2016-02-01
- Last updated: 2022-05-24
- Version: `1.6.1`
- Size: 33.32 KiB
- Minimum Chrome: 95
- Languages (1): English
- Website: `http://robots-viewer.com/`
- Chrome Web Store: <https://chromewebstore.google.com/detail/robotstxt-viewer/agckgmkiigllflmahknlkhhhhmchodcb>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fagckgmkiigllflmahknlkhhhhmchodcb>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 2,000 | 4.50 | 8 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-26.

## What it can access

From the extension's manifest, in plain language.

### Sites

- `https://www.robots-viewer.com/`: www.robots-viewer.com

### Browser features

- `activeTab`: The tab you're on, only after you click the extension

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [MyIP - ip address and location details](https://extensiontracker.com/extension/pdnildedfbigagjbaigbalnfdfpijhaf) | 1,000 | 4.11 | 9 | Developer Tools |

All 2 extensions by [Nico Hemkes](https://extensiontracker.com/developer/u3c67d281f433b639d8108b623516c4a0).

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-09-26 21:44 UTC; next check around 2026-09-30.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “robots.txt viewer” (agckgmkiigllflmahknlkhhhhmchodcb). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/agckgmkiigllflmahknlkhhhhmchodcb. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_agckgmkiigllflmahknlkhhhhmchodcb,
  title   = {robots.txt viewer (agckgmkiigllflmahknlkhhhhmchodcb)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-26},
  url     = {https://extensiontracker.com/extension/agckgmkiigllflmahknlkhhhhmchodcb},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/agckgmkiigllflmahknlkhhhhmchodcb>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.