---
title: "Is Your Tracking Domain Broken? Free CNAME Checker | WarmInboxes"
description: "A short walkthrough of the free WarmInboxes CNAME checker: see where a hostname's CNAME points, so a tracking domain that resolves nowhere is caught before a…"
url: https://warminboxes.com/videos/cname-checker
breadcrumb: "Home > Tool demos > CNAME Checker"
---
# Is Your Tracking Domain Broken? Free CNAME Checker

Tool demo · CNAME Checker

A short walkthrough of the free WarmInboxes CNAME checker: see where a hostname's CNAME points, so a tracking domain that resolves nowhere is caught before a campaign.

## CNAME Checker

Follow the full CNAME chain and catch the mistakes that break a cold email tracking domain.

[Run the CNAME Checker →](https://warminboxes.com/cname-checker) Free, no account.