---
title: "Niche Verdict — KDP Niche Research & Amazon BSR – Chrome extension stats, history and permissions"
description: "No user count, no ratings yet. Version 0.8.1, updated 2026-11-08. Requests 0 permissions."
url: "https://extensiontracker.com/extension/allnnbckfiolefgcaaheibddfmlnnlcp"
---

# Niche Verdict — KDP Niche Research & Amazon BSR

Live in the Chrome Web Store.

- Users: the store shows no user count
- Rating: no ratings yet
- Last checked: 2026-11-09 05:32 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)

## The listing

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

Summary from the listing:

> KDP niche & keyword research on any Amazon book search. Verdict: winnable, crowded, thin or no demand. No invented sales.

- Extension ID: `allnnbckfiolefgcaaheibddfmlnnlcp`
- Developer: [Paper Plane Workshop](https://extensiontracker.com/developer/ud2ad17727a62e6ce0be5a9349e46b67f)
- Enhanced Safe Browsing: Not trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Lifestyle › Shopping](https://extensiontracker.com/category/lifestyle/shopping)
- First published: 2026-11-06
- Last updated: 2026-11-08
- Version: `0.8.1`
- Size: 31.06 KiB
- Minimum Chrome: 88
- Languages (1): English
- Website: `paperplaneworkshop.com`
- Support page: `https://paperplaneworkshop.com/contact`
- Chrome Web Store: <https://chromewebstore.google.com/detail/niche-verdict-%E2%80%94-kdp-niche/allnnbckfiolefgcaaheibddfmlnnlcp>
- View its code or download CRX: <https://crxpeek.com/extension/allnnbckfiolefgcaaheibddfmlnnlcp>
- Search Google for the ID: <https://www.google.com/search?q=%22allnnbckfiolefgcaaheibddfmlnnlcp%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-09 | – | – | – |
| 2026-11-07 | – | – | – |

## What changed

Every change found on a check, newest first.

- 2026-11-09: New version `0.8.1`, replacing `0.8.0`.
- 2026-11-09: The summary on the listing changed.

## Developer history

Moves to another publisher account and new contact emails, newest first.

No move to another account and no new contact email since tracking began on 2026-11-07.

We know contact emails only by a keyed hash, so they're never shown. Recent changes: [Account and contact changes](https://extensiontracker.com/owners/).

## What it can access

From the extension's manifest, in plain language.

### Sites where it runs scripts

- `https://www.amazon.ca/*/dp/*`: www.amazon.ca
- `https://www.amazon.ca/dp/*`: www.amazon.ca
- `https://www.amazon.ca/s*`: www.amazon.ca
- `https://www.amazon.co.uk/*/dp/*`: www.amazon.co.uk
- `https://www.amazon.co.uk/dp/*`: www.amazon.co.uk
- `https://www.amazon.co.uk/s*`: www.amazon.co.uk
- `https://www.amazon.com.au/*/dp/*`: www.amazon.com.au
- `https://www.amazon.com.au/dp/*`: www.amazon.com.au
- `https://www.amazon.com.au/s*`: www.amazon.com.au
- `https://www.amazon.com.br/*/dp/*`: www.amazon.com.br
- `https://www.amazon.com.br/dp/*`: www.amazon.com.br
- `https://www.amazon.com.br/s*`: www.amazon.com.br
- `https://www.amazon.com.mx/*/dp/*`: www.amazon.com.mx
- `https://www.amazon.com.mx/dp/*`: www.amazon.com.mx
- `https://www.amazon.com.mx/s*`: www.amazon.com.mx
- `https://www.amazon.com/*/dp/*`: www.amazon.com
- `https://www.amazon.com/dp/*`: www.amazon.com
- `https://www.amazon.com/s*`: www.amazon.com
- `https://www.amazon.de/*/dp/*`: www.amazon.de
- `https://www.amazon.de/dp/*`: www.amazon.de
- `https://www.amazon.de/s*`: www.amazon.de
- `https://www.amazon.es/*/dp/*`: www.amazon.es
- `https://www.amazon.es/dp/*`: www.amazon.es
- `https://www.amazon.es/s*`: www.amazon.es
- `https://www.amazon.fr/*/dp/*`: www.amazon.fr
- `https://www.amazon.fr/dp/*`: www.amazon.fr
- `https://www.amazon.fr/s*`: www.amazon.fr
- `https://www.amazon.in/*/dp/*`: www.amazon.in
- `https://www.amazon.in/dp/*`: www.amazon.in
- `https://www.amazon.in/s*`: www.amazon.in
- `https://www.amazon.it/*/dp/*`: www.amazon.it
- `https://www.amazon.it/dp/*`: www.amazon.it
- `https://www.amazon.it/s*`: www.amazon.it
- `https://www.amazon.nl/*/dp/*`: www.amazon.nl
- `https://www.amazon.nl/dp/*`: www.amazon.nl
- `https://www.amazon.nl/s*`: www.amazon.nl
- `https://www.amazon.pl/*/dp/*`: www.amazon.pl
- `https://www.amazon.pl/dp/*`: www.amazon.pl
- `https://www.amazon.pl/s*`: www.amazon.pl
- `https://www.amazon.se/*/dp/*`: www.amazon.se
- `https://www.amazon.se/dp/*`: www.amazon.se
- `https://www.amazon.se/s*`: www.amazon.se

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked again 7 and 30 days after it was published, and again whenever a new version appears. Last checked 2026-11-09 05:32 UTC; next check around 2026-11-13.

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

## Cite this page

Extension Tracker. “Niche Verdict — KDP Niche Research & Amazon BSR” (allnnbckfiolefgcaaheibddfmlnnlcp). Chrome Web Store data, last checked 2026-11-09. https://extensiontracker.com/extension/allnnbckfiolefgcaaheibddfmlnnlcp. Accessed 2026-11-13.

```bibtex
@misc{extensiontracker_allnnbckfiolefgcaaheibddfmlnnlcp,
  title   = {Niche Verdict — KDP Niche Research & Amazon BSR (allnnbckfiolefgcaaheibddfmlnnlcp)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-09},
  url     = {https://extensiontracker.com/extension/allnnbckfiolefgcaaheibddfmlnnlcp},
  urldate = {2026-11-13}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/allnnbckfiolefgcaaheibddfmlnnlcp>. 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. Every page except search comes as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.