What happened next: the deprecation of ANY

This post details Cloudflare's decision and implementation to deprecate the DNS ANY query type. It explains the rationale behind this decision, including the lack of legitimate use, abundance of malicious use, and its role in DNS amplification DDoS attacks. The post discusses the conversation within the DNS community regarding the interpretation of ANY queries and the high cost of answering them, especially with DNSSEC. It outlines the chosen approach of returning a "harmless" HINFO record to recursive resolvers, which is small and cacheable, thereby reducing amplification potential. This approach is documented in the IETF draft 'Refuse ANY'.