---
title: "SlopCheck – Chrome extension stats, history and permissions"
description: "18 users, rated 5.00 by 1 person. Version 1.8.6, updated 2026-10-07. Requests 4 permissions."
url: "https://extensiontracker.com/extension/nbjpkembbiddgpijomjkfecenihgcdfa"
---

# SlopCheck

Live in the Chrome Web Store.

- Users: 18
- Rating: 5.00 from 1 rating
- Last checked: 2026-11-04 12:55 UTC
- Users gained in 7 days: +7
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #125,120 of 289,024 live extensions
- Rank in Tools: #45,017 of 114,373

## The listing

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

Summary from the listing:

> Check a reference list against Crossref: flags non-existent DOIs and citations whose title, authors, journal or year do not match.

- Extension ID: `nbjpkembbiddgpijomjkfecenihgcdfa`
- Developer: [michal.wojcik.piotr](https://extensiontracker.com/developer/u0695083db6cd0a9898467f84d58c0e1a)
- Enhanced Safe Browsing: Not trusted ([what this means](https://extensiontracker.com/enhanced-safe-browsing))
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2026-10-05
- Last updated: 2026-10-07
- Version: `1.8.6`
- Size: 49.82 KiB
- Minimum Chrome: 88
- Languages (1): English
- Privacy policy: `https://micha-blip.github.io/SlopCheck/privacy.html`
- Chrome Web Store: <https://chromewebstore.google.com/detail/slopcheck/nbjpkembbiddgpijomjkfecenihgcdfa>
- View its code or download CRX: <https://crxpeek.com/extension/nbjpkembbiddgpijomjkfecenihgcdfa>
- Search Google for the ID: <https://www.google.com/search?q=%22nbjpkembbiddgpijomjkfecenihgcdfa%22&tbs=li:1>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-11-04 | 18 | 5.00 | 1 |
| 2026-10-12 | 11 | – | – |
| 2026-10-08 | – | – | – |
| 2026-10-06 | – | – | – |

## What changed

Every change found on a check, newest first.

- 2026-10-08: New version `1.8.6`, replacing `1.4`.
- 2026-10-08: The developer's contact email changed.
- 2026-10-08: No longer declared a trader.

## Developer history

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

- 2026-10-08: The contact email changed.

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.

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

### Sites

- `https://api.crossref.org/*`: api.crossref.org
- `https://doi.org/*`: doi.org

### Sites where it runs scripts

- `<all_urls>`: Every website

### Browser features

- `contextMenus`: Add items to the right-click menu
- `storage`: Save settings and data in your browser

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every month, and again whenever a new version appears. Last checked 2026-11-04 12:55 UTC; next check around 2026-12-05.

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

## Cite this page

Extension Tracker. “SlopCheck” (nbjpkembbiddgpijomjkfecenihgcdfa). Chrome Web Store data, last checked 2026-11-04. https://extensiontracker.com/extension/nbjpkembbiddgpijomjkfecenihgcdfa. Accessed 2026-11-08.

```bibtex
@misc{extensiontracker_nbjpkembbiddgpijomjkfecenihgcdfa,
  title   = {SlopCheck (nbjpkembbiddgpijomjkfecenihgcdfa)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-11-04},
  url     = {https://extensiontracker.com/extension/nbjpkembbiddgpijomjkfecenihgcdfa},
  urldate = {2026-11-08}
}
```

---

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