- File formats:
- BEST CURRENT PRACTICE
- M. Larson
- dnsop (ops)
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This memo describes DNS iterative resolver behavior that results in a significant query volume sent to the root and top-level domain (TLD) name servers. We offer implementation advice to iterative resolver developers to alleviate these unnecessary queries. The recommendations made in this document are a direct byproduct of observation and analysis of abnormal query traffic patterns seen at two of the thirteen root name servers and all thirteen com/net TLD name servers. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 8729.