# WHOIS Check

> This addon will check if domain of opened url, is registered within last 12 months. And will notify the user with an icon besides url. By clicking the icon, user can proceed or stop & go to duckduckgo.

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

## Overview

- **ID:** `whois-check`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** rosarp
- **Category:** privacy-security,alerts-updates,other
- **Daily users:** 30
- **Rating:** 5.00 / 5 (2 ratings)
- **Version:** 1.1resigned1
- **Last updated:** 2024-04-25
- **First published:** 2017-06-29
- **Size:** 239 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/whois-check/)

## Description

WHOIS Check is a Firefox add-on that allows you to check if the domain of an opened URL is registered within the last 12 months. It notifies the user with an icon beside the URL, allowing them to proceed or stop and go to DuckDuckGo for further information.

## Rankings

- #20,367 — Overall
- #114 — register
- #193 — month

## Permissions and access

### Permissions

- `storage`
- `webRequest`
- `webRequestBlocking`
- `activeTab`
- `tabs`
- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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

- [Domain Checker](https://chrome-stats.com/d/domain-checker)
- [The Onion Notifier](https://chrome-stats.com/d/the-onion-notifier) — 10 users, 3.00 / 5
- [Young Domain Guard](https://chrome-stats.com/d/young-domain-guard) — 9 users, 5.00 / 5
- [DNSSEC](https://chrome-stats.com/d/dnssec) — 373 users, 3.08 / 5
- [DNSSEC Checker](https://chrome-stats.com/d/dnssec-checker) — 18 users
- [Gmail Domain Age Checker](https://chrome-stats.com/d/gmail-domain-age-checker) — 6 users
- [Domain Expiry Checker](https://chrome-stats.com/d/domain-expiry-checker) — 1 users
- [Domain Search Everywhere](https://chrome-stats.com/d/domain-search-everywhere)
- [Tenure – Zero-Click Website Age Checker](https://chrome-stats.com/d/tenure) — 15 users
- [SEO Add-on: Doug Toolz](https://chrome-stats.com/d/doug-toolz-seo-add-on) — 14 users, 3.00 / 5
- [Domain Age Checker | Site Age Checker](https://chrome-stats.com/d/domain-age-checker) — 14 users
- [WHOIS Lookup Info](https://chrome-stats.com/d/whois-lookup-info) — 9 users

---

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