---
title: "oneTwoOne Lockdown – Chrome extension stats, history and permissions"
description: "90,000 users, rated 2.60 by 5 people. Version 3.0.5, updated 2024-05-11. Requests 6 permissions."
url: "https://extensiontracker.com/extension/djkcpblgmmdnielnpleekpaliebjhdgc"
---

# oneTwoOne Lockdown

Live in the Chrome Web Store.

- Users: 90,000
- Rating: 2.60 from 5 ratings
- Last checked: 2026-09-26 23:55 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #1,770 of 264,703 live extensions
- Rank in Tools: #354 of 103,498

## The listing

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

Summary from the listing:

> Prevents students from logging into other student Chromebooks.

- Extension ID: `djkcpblgmmdnielnpleekpaliebjhdgc`
- Developer: [matthttam](https://extensiontracker.com/developer/ud1bef1f466afb4cbeecd4b56173cb04b)
- Trader status: Not declared a trader under EU law
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2024-05-11
- Last updated: 2024-05-11
- Version: `3.0.5`
- Size: 86.69 KiB
- Minimum Chrome: 88
- Languages (1): English
- Support page: `https://github.com/matthttam/oneTwoOne/issues`
- Chrome Web Store: <https://chromewebstore.google.com/detail/onetwoone-lockdown/djkcpblgmmdnielnpleekpaliebjhdgc>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fdjkcpblgmmdnielnpleekpaliebjhdgc>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-26 | 90,000 | 2.60 | 5 |

## 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.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `*://*/*`: Every website

### Browser features

- `declarativeNetRequestWithHostAccess`: Block or change network requests on the sites it can reach
- `enterprise.deviceAttributes`
- `identity`: Sign you in with your Google account
- `identity.email`: Read your Google account's email address
- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [IIQ Enhancement Suite](https://extensiontracker.com/extension/hkcocjeoiagicbodfodgcfbofdoclhak) | 2,000 | 5.00 | 2 | Workflow & Planning |

All 2 extensions by [matthttam](https://extensiontracker.com/developer/ud1bef1f466afb4cbeecd4b56173cb04b).

## 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 23:55 UTC; next check around 2026-10-01.

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

## Cite this page

Extension Tracker. “oneTwoOne Lockdown” (djkcpblgmmdnielnpleekpaliebjhdgc). Chrome Web Store data, last checked 2026-09-26. https://extensiontracker.com/extension/djkcpblgmmdnielnpleekpaliebjhdgc. Accessed 2026-09-28.

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

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/djkcpblgmmdnielnpleekpaliebjhdgc>. 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`.