RFC 9476 · PROPOSED STANDARD · 2023
SUN · 14 JUN 2026
The .alt Special-Use Top-Level Domain
Overview
RFC 9476, “The .alt Special-Use Top-Level Domain”, is a Proposed Standard document published in September 2023 by W. Kumari, P. Hoffman. The canonical text is published by the RFC Editor.
Abstract
This document reserves a Top-Level Domain (TLD) label "alt" to be used in non-DNS contexts. It also provides advice and guidance to developers creating alternative namespaces.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
Read this RFC
The canonical text of RFC 9476 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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