# isTrust

> Verify the trustworthiness of any domain

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

## Overview

- **ID:** `istrust`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Internet Society Belgium
- **Category:** privacy-security
- **Daily users:** 35
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 4.5.0
- **Last updated:** 2026-07-26
- **First published:** 2021-09-18
- **Size:** 151 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/istrust/)
- **Website:** [https://github.com/Internet-Society-Belgium/isTrust/issues](https://github.com/Internet-Society-Belgium/isTrust/issues)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/istrust/privacy/](https://addons.mozilla.org/firefox/addon/istrust/privacy/)

## Description

isTrust is a Firefox add-on that allows you to verify the trustability of any website. You can check the domain and communication of a website to determine if it is suspicious. The add-on is open source and can be found on GitHub.

## Rankings

- #19,099 — Overall
- #17 — trust
- #240 — domain

## Permissions and access

### Permissions

- `activeTab`
- `contextMenus`
- `history`
- `http://*/*`
- `https://*/*`

## 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).

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- [Trusted Sender Score - Theme](https://chrome-stats.com/d/trusted-sender-score-theme)

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