HTTP/2 200 date: Mon, 14 Jul 2025 19:50:55 GMT content-type: text/plain; charset=utf-8 content-security-policy: default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ https://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com cross-origin-opener-policy: unsafe-none etag: W/"4ac1975b737a51df255a2c3398668fc7" referrer-policy: strict-origin-when-cross-origin strict-transport-security: max-age=3600; includeSubDomains vary: Cookie, Accept-Encoding x-content-type-options: nosniff x-frame-options: SAMEORIGIN cf-cache-status: MISS expires: Mon, 14 Jul 2025 23:50:55 GMT cache-control: public, max-age=14400 server: cloudflare cf-ray: 95f38d44aa62c1bd-BLR content-encoding: gzip alt-svc: h3=":443"; ma=86400 @misc{rfc4697, series = {Request for Comments}, number = 4697, howpublished = {RFC 4697}, publisher = {RFC Editor}, doi = {10.17487/RFC4697}, url = {https://www.rfc-editor.org/info/rfc4697}, author = {Piet Barber and Matt Larson}, title = {{Observed DNS Resolution Misbehavior}}, pagetotal = 18, year = 2006, month = oct, abstract = {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.}, }