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 → Free, no account.