RFC 3143 · INFORMATIONAL · 2001
SUN · 14 JUN 2026
Known HTTP Proxy/Caching Problems
Overview
RFC 3143, “Known HTTP Proxy/Caching Problems”, is an Informational document published in June 2001 by I. Cooper, J. Dilley. The canonical text is published by the RFC Editor.
Abstract
This document catalogs a number of known problems with World Wide Web (WWW) (caching) proxies and cache servers. The goal of the document is to provide a discussion of the problems and proposed workarounds, and ultimately to improve conditions by illustrating problems. This memo provides information for the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
Read this RFC
The canonical text of RFC 3143 is hosted at rfc-editor.org. Available in TXT,HTML.
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