RFC 6055 · INFORMATIONAL · 2011

IAB Thoughts on Encodings for Internationalized Domain Names

Overview

RFC 6055, “IAB Thoughts on Encodings for Internationalized Domain Names”, is an Informational document published in February 2011 by D. Thaler, J. Klensin, S. Cheshire. It updates RFC 2130. The canonical text is published by the RFC Editor.

Abstract

This document explores issues with Internationalized Domain Names (IDNs) that result from the use of various encoding schemes such as UTF-8 and the ASCII-Compatible Encoding produced by the Punycode algorithm. It focuses on the importance of agreeing on a single encoding and how complicated the state of affairs ends up being as a result of using different encodings today.

Abstract as published in the RFC, via rfc-editor.org.

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 6055 is hosted at rfc-editor.org. Available in TXT,HTML.

Relationships to other RFCs
This RFC updates
RFC 2130
Other RFCs from 2011

Who Is Online

In total there are 283 users online: 0 registered, 273 guests and 10 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Googlebot Other Bot Other Crawler Other Spider PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372