Why this matters
CNAME records connect tracking and email subdomains to the services that handle them - incorrect records break tracking and deliverability.
Step-by-step instructions
1
Sign in to your DNS provider
E.g. Cloudflare, GoDaddy, 123-Reg.
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2
Open DNS management for your domain
Find the DNS records or Zone File panel.
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3
Click "Add record"
Choose type CNAME.
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4
Enter host and target
Host e.g. "track". Target e.g. "lb.example.com" supplied by the platform.
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5
Save and wait
Propagation is usually within 15 minutes.
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Pro tips
- Disable Cloudflare proxy (grey cloud) for tracking CNAMEs.
- Keep target exact - no typos, include trailing dot if required.
- Use a TTL of 3600 or lower during setup.
Common mistakes
- Proxying through Cloudflare and breaking SSL.
- Entering the target with http:// prefix.
- Trying to add a CNAME on the root apex - use ALIAS/ANAME instead.
What happens next
The subdomain routes correctly within a short propagation window.