---
id: "alt-tld"
kind: "glossary-term"
title: ".alt"
language: "en"
category: "Alternative naming systems"
updated: "2026-10-04T14:01:23Z"
canonical: "https://tldlog.com/glossary/alt-tld/"
translations:
  es: "https://tldlog.com/es/glosario/alt-tld/"
  de: "https://tldlog.com/de/glossar/alt-tld/"
  fr: "https://tldlog.com/fr/glossaire/alt-tld/"
  it: "https://tldlog.com/it/glossario/alt-tld/"
  pt-BR: "https://tldlog.com/pt/glossario/alt-tld/"
  ru: "https://tldlog.com/ru/glossariy/alt-tld/"
  zh-Hans: "https://tldlog.com/zh/cihui/alt-tld/"
---

# .alt

An ending the IETF reserved in 2023, in RFC 9476, for names that do not belong to the DNS. Makers of other naming systems can place their names under it to avoid clashes with real TLDs. It will never be added to the DNS root.

## related terms

- [namespace](https://tldlog.com/glossary/namespace/)
- [name collision](https://tldlog.com/glossary/name-collision/)
- [.onion](https://tldlog.com/glossary/onion/)
- [GNU Name System](https://tldlog.com/glossary/gnu-name-system/)
- [root zone](https://tldlog.com/glossary/root-zone/)