---
title: "Copycat Slayer – Chrome extension stats, history and permissions"
description: "1,000 users, rated 5.00 by 4 people. Version 1.72, updated 2025-08-08. Requests 2 permissions."
url: "https://extensiontracker.com/extension/ldnclbmjgfdcahcckfpcbbcmnhdodcah"
---

# Copycat Slayer

Live in the Chrome Web Store.

- Users: 1,000
- Rating: 5.00 from 4 ratings
- Last checked: 2026-09-27 04:48 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #17,733 of 264,702 live extensions
- Rank in Tools: #4,498 of 103,498

## The listing

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

Summary from the listing:

> This tool makes much easier to send copyright infringement report to Twitter.

- Extension ID: `ldnclbmjgfdcahcckfpcbbcmnhdodcah`
- Developer: [ナカシマ723](https://extensiontracker.com/developer/uedf0914a9b3356365b30a9d4a7c89747)
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2015-04-15
- Last updated: 2025-08-08
- Version: `1.72`
- Size: 138 KiB
- Minimum Chrome: 88
- Languages (2): English, 日本語
- Website: `http://ccslyr.nakashima723.info/`
- Support page: `https://twitter.com/nakashima723`
- Chrome Web Store: <https://chromewebstore.google.com/detail/%E7%84%A1%E6%96%AD%E8%BB%A2%E8%BC%89%E3%82%B9%E3%83%AC%E3%82%A4%E3%83%A4%E3%83%BC/ldnclbmjgfdcahcckfpcbbcmnhdodcah>
- View the code or download the CRX, in CRX Peek: <https://crxpeek.com/?id=ldnclbmjgfdcahcckfpcbbcmnhdodcah>

## Users over time

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

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-27 | 1,000 | 5.00 | 4 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## 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

- `<all_urls>`: Every website

### Sites where it runs scripts

- `*://*/*`: Every website
- `https://help.twitter.com/*/dmca`: help.twitter.com
- `https://help.twitter.com/*/dmca/*`: help.twitter.com
- `https://help.twitter.com/forms/dmca`: help.twitter.com
- `https://reportcontent.google.com/forms/dmca_search*`: reportcontent.google.com
- `https://twitter.com/*/status/*`: twitter.com
- `https://twitter.com/search?q=*`: twitter.com
- `https://www.google.co.jp/search*`: www.google.co.jp

### Browser features

- `storage`: Save settings and data in your browser

## More from this developer

Other extensions from the same publisher account.

| Extension | Users | Rating | Ratings | Category |
| --- | ---: | ---: | ---: | --- |
| [FlipPixie](https://extensiontracker.com/extension/hcpgdfjpehdkdebjepgcmgkhoabjdegf) | 1,000 | 3.67 | 3 | Accessibility |

All 2 extensions by [ナカシマ723](https://extensiontracker.com/developer/uedf0914a9b3356365b30a9d4a7c89747).

## 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 2026-09-27 04:48 UTC; next check around 2026-10-01.

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

## Cite this page

Extension Tracker. “Copycat Slayer” (ldnclbmjgfdcahcckfpcbbcmnhdodcah). Chrome Web Store data, last checked 2026-09-27. https://extensiontracker.com/extension/ldnclbmjgfdcahcckfpcbbcmnhdodcah. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_ldnclbmjgfdcahcckfpcbbcmnhdodcah,
  title   = {Copycat Slayer (ldnclbmjgfdcahcckfpcbbcmnhdodcah)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-27},
  url     = {https://extensiontracker.com/extension/ldnclbmjgfdcahcckfpcbbcmnhdodcah},
  urldate = {2026-09-28}
}
```

---

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