Remove or reclaim the CNAME to a deprovisioned service on Cloudflare

Why it matters

A subdomain's CNAME points at a hosted service where your account or resource no longer exists, so someone else could claim it and serve their content on your subdomain. That can be used for phishing, malware or stealing cookies.

Staged change. Do this in stages and check each one before the next, so a mistake does not break your site or your mail.

The fix

1. Open DNS then Records, find the CNAME named in the finding and delete it, or point it to a target you control.
2. Search the Records list for other entries pointing at the same service and review them as well.

Read the documentation ↗(opens in a new tab)

Related

• Reported by the Dangling CNAMEs check
• Delete the CNAME that points at an unregistered domain
• Move the CNAME to an internal name out of public DNS
• Delete the CNAME that points at a name that does not exist
• Fix the wildcard CNAME that points at a missing name