#SAC127 from @icann #SSAC on #DNS blocking is relevant far beyond policy discussions.
https://www.icann.org/en/ssac/publications/documents/sac127-executive-summary-for-dns-blocking-revisited-16-05-2025-en

For recursive resolver operators, it highlights technical challenges such as limited effectiveness, collateral damage on shared dependencies, and reduced visibility when users move to external #EncryptedDNS paths.

The recommendation to use extended DNS errors ( #EDE ) is particularly useful because it makes blocking visible instead of looking like a random outage.