# WHOIS Lookup

> Look up domain registration, registrar, dates, nameservers, and status from the Firefox toolbar.

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

## Overview

- **ID:** `simple-whois-lookup`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Kemal Goksu
- **Category:** other
- **Version:** 2.0
- **Last updated:** 2026-08-30
- **First published:** 2026-08-27
- **Size:** 31 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/simple-whois-lookup/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/simple-whois-lookup/privacy/](https://addons.mozilla.org/firefox/addon/simple-whois-lookup/privacy/)

## Description

WHOIS Lookup is a lightweight Firefox extension that shows registration details for the domain in the active tab. It queries the registry's RDAP endpoint when available and falls back to a classic WHOIS web service.

WHOIS Lookup add-on detects the domain in the active tab, shows the registrar, creation/update/expiration dates, nameservers, and domain status. Caches lookups locally for one hour. Indicates when a domain may be available, opens one of 10 configurable popular registrars for a final availability check.

Lets you clear cached lookup data from the settings view.
Does not cache lookup results from private browsing windows.

## Rankings

- #142,002 — Overall
- #114 — lookup

## Permissions and access

### Permissions

- `storage`
- `activeTab`

### Host permissions

- `https://*/*`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High 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 was recently updated in the past month. New updates 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

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- [Ip-Insights for Firefox](https://chrome-stats.com/d/ip-insights) — 1 users
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- [Whois Checker](https://chrome-stats.com/d/whois-checker) — 34 users, 3.00 / 5
- [WHOIS Check](https://chrome-stats.com/d/whois-check) — 30 users, 5.00 / 5
- [IP Geolocator](https://chrome-stats.com/d/ip_geolocator) — 9 users

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