DNS & ORIGIN COMPARISON

Check before you switch.

Load a site normally, then compare it with one or more hosts-file overrides. Each view keeps the original hostname so you can see what a DNS cutover would show.

Set up the local runner

Install Node.js 22+ and Chrome or Edge. Download the runner, open a terminal in your Downloads folder, and run:

node hostchex.mjs

Open the private link printed in the terminal in Chrome or Edge. Keep the terminal open and allow local network access if prompted. URLs, IPs and screenshots stay on your device.

Download runner

02 / COMPARE

Side-by-side results

Your screenshots, HTTP status codes, final URLs, and server IPs will appear here.

Check before you switch.

Comparison setup

Side-by-side results