Download & Install

Grab the installer and extension packages, then follow the quick setup below. Designed for managed Windows devices.

Download Installer Package Download Extension Package

Quick Install Steps

Download

Save the installer package to the Windows laptop you want to protect.

Extract

Unzip the folder to a location you can keep on the machine.

Run Installer

Right-click Install.cmd and choose Run as administrator.

Install Extension

Open chrome://extensions, enable Developer mode, then Load unpacked.

Confirm DNS

Confirm blocked sites fail to resolve and allowed sites load normally.

Manage Lists

Edit C:\ProgramData\ContentBlocker\blocklist.txt to control DNS blocks.

Verify Installation

Run these commands in PowerShell to confirm DNS filtering is active.

                > Resolve-DnsName youtube.com -Server 127.0.0.1
                > Resolve-DnsName example.com -Server 127.0.0.1
                > Get-Content C:\ProgramData\ContentBlocker\blocklist.txt -TotalCount 3
            

Test Checklist

Open Chrome and confirm youtube.com fails to load.
Visit example.com and confirm it loads normally.
Check that DNS is set to 127.0.0.1 on Wi-Fi.
If YouTube still loads, close Chrome and run ipconfig /flushdns.

What Gets Installed

Local services and DNS filter in C:\ProgramData\ContentBlocker
Extension package for browser-level block pages
Blocklist auto-generated from the bundled domains DB