# Keyword Density Checker

> A Mozilla add-on that checks the keyword density of a web page.

Canonical page: [https://chrome-stats.com/d/keyword-density-checker](https://chrome-stats.com/d/keyword-density-checker)

## Overview

- **ID:** `keyword-density-checker`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Backlink Boss
- **Category:** other
- **Daily users:** 2
- **Version:** 1.0
- **Last updated:** 2023-06-08
- **First published:** 2023-06-07
- **Size:** 14 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/keyword-density-checker/)

## Description

Keyword Density Checker is a Mozilla add-on that enables users to check the keyword density of a web page. By analyzing the frequency of keywords on a webpage, this tool provides valuable insights for improving search engine optimization (SEO) efforts.

## Rankings

- #54,405 — Overall
- #38 — keyword

## Permissions and access

### Permissions

- `activeTab`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [KeywordDensityChecker](https://chrome-stats.com/d/keyworddensitychecker) — 1 users
- [KeywordScanner](https://chrome-stats.com/d/keywordscanner) — 2 users
- [Keyword Density & Word Frequency Analyzer](https://chrome-stats.com/d/keyword-density-analyzer) — 1 users
- [Keyword Rank Checker sa](https://chrome-stats.com/d/keyword-rank-checker-sa) — 1 users
- [Keyword Density Checker TM](https://chrome-stats.com/d/keyword-density-checker-tm)
- [Keywordkönig](https://chrome-stats.com/d/keywordk%C3%B6nig) — 1 users, 5.00 / 5
- [Character Counter](https://chrome-stats.com/d/online-character-count) — 9 users, 3.00 / 5
- [Word Counter](https://chrome-stats.com/d/word-counter-online)
- [Text Density Analyzer](https://chrome-stats.com/d/text-density-analyzer)
- [Word Count Helper](https://chrome-stats.com/d/word-count-helper-njk)
- [Word Counter for Webpages](https://chrome-stats.com/d/word-counter-for-webpages-at)
- [Word Count Highlighter](https://chrome-stats.com/d/word-count-highlighter)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/keyword-density-checker)