403unlocker

Overview

DNS Management & Testing App streamlines DNS testing & configuration, offering fast performance checks and seamless active DNS setup—all in an intuitive interface

Core Features

• Parallel DNS Pinging – Simultaneously ping multiple DNS servers for fast performance checks

• Geo-Restriction Testing – Quickly evaluate hostname accessibility across regions using parallel testing

• Quick DNS Configuration – Instantly apply your selected DNS server to the active network interface

Enhanced User Experience

• Predefined DNS List – Comes with a default list of popular DNS servers

• PublicDNS Scraper – Fetch & update the latest DNS entries from publicdns.xyz

• Custom DNS Addition – Manually add custom DNS entries

• QR Code Sharing for Mobile – Easily generate QR codes to share your DNS configurations directly to your mobile

• Timeout Configuration – Define specific timeouts for ping, DNS resolution, and HTTP requests

• Windows Startup & Background Operation – Optionally launch at Windows startup and run silently in the task tray
• Import/Export Functionality – Seamlessly share your DNS configurations by importing or exporting DNS lists as JSON files with other users

Installation

For Windows 7

1. ِDownload & install .Net Framework 4.8
2. Download & Install 403unlocker

For Windows 10 & 11

• Download & Install 403unlocker