# RKN Alert

> This extension shows a notice about the site in current tab if it's blocked by government in Russia. If domain or ip in current tab is blocked, the extension will change icon to red color. For example: rutracker.org is blocked, google.com is not.

Canonical page: [https://chrome-stats.com/d/blocklistcheck](https://chrome-stats.com/d/blocklistcheck)

## Overview

- **ID:** `blocklistcheck`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Maris
- **Category:** alerts-updates,tabs
- **Daily users:** 37
- **Rating:** 4.53 / 5 (15 ratings)
- **Version:** 0.18.9
- **Last updated:** 2019-05-21
- **First published:** 2018-09-26
- **Size:** 80 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/blocklistcheck/)

## Description

RKN Alert is a Firefox add-on that provides a notice if the website in the current tab is blocked by the government in Russia. It changes the icon to red if the domain or IP is blocked. Stay informed about website accessibility with RKN Alert.

## Rankings

- #18,613 — Overall
- #204 — example

## Permissions and access

### Permissions

- `webRequest`
- `<all_urls>`
- `tabs`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low 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).

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