Hi! I’ve noticed that you have documented when cloudflare for families blocks malicious and offensive domains the dns is resolved to a null ip record for A and AAAA records respectively.
Cloudflare will return
0.0.0.0if the fully qualified domain name (FQDN)Open external link or IP in a DNS query is classified as malicious.
When this happens in safari, the browser appears to constantly be loading something until i navigate to a new page… Not a big deal but it is confusing. Why the decision to use a null IP rather than NXDOMAIN which seems like it is more likely to be understood by all types dns clients? Is there a benefit to using a null ip?