Cloudflare explains the 2026 DNS root KSK rollover and how to check resolver readiness↗

Cloudflare details the upcoming DNS root key-signing key rollover, why validating resolvers must trust KSK-2024 before the switch, and how RFC 8509 trust anchor sentinels can be used to test whether a resolver is ready. The post also notes that most site operators need no changes unless they run their own DNSSEC-validating resolver.