---
id: "namespace"
kind: "glossary-term"
title: "namespace"
language: "en"
category: "Alternative naming systems"
updated: "2026-10-04T14:01:23Z"
canonical: "https://tldlog.com/glossary/namespace/"
translations:
  es: "https://tldlog.com/es/glosario/espacio-nombres/"
  de: "https://tldlog.com/de/glossar/namensraum/"
  fr: "https://tldlog.com/fr/glossaire/espace-noms/"
  it: "https://tldlog.com/it/glossario/spazio-nomi/"
  pt-BR: "https://tldlog.com/pt/glossario/espaco-nomes/"
  ru: "https://tldlog.com/ru/glossariy/prostranstvo-imen/"
  zh-Hans: "https://tldlog.com/zh/cihui/mingming-kongjian/"
---

# namespace

The full set of names that one naming system can hold, with its own rules on who may create a name. The DNS is one namespace, with a single root coordinated through ICANN and IANA. Other systems that use names of similar shape are separate namespaces, so the same name can exist in two of them.

## related terms

- [DNS](https://tldlog.com/glossary/dns/)
- [root zone](https://tldlog.com/glossary/root-zone/)
- [alternative root](https://tldlog.com/glossary/alternative-root/)
- [name collision](https://tldlog.com/glossary/name-collision/)
- [blockchain domain](https://tldlog.com/glossary/blockchain-domain/)