How Long Will CNAME Records Be Retained After I Delete a Domain Name from WAF?
If you do not select Forcibly delete the WAF CNAME record when deleting a protected domain name from WAF, WAF will retain the CNAME record of the domain name for about 30 days before deleting it.
If you select Forcibly delete the WAF CNAME record when deleting a protected domain name from WAF, WAF will not check your domain name resolution and delete WAF CNAME record immediately. Before enabling this option, make sure you have resolved the domain name to the origin server, or your website will become inaccessible.
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