---
id: "special-use-domain-names"
kind: "glossary-term"
title: "特殊用途域名"
language: "zh-Hans"
category: "DNS与技术基础"
updated: "2026-10-10T12:00:00Z"
canonical: "https://tldlog.com/zh/cihui/teshu-yongtu-yuming/"
translations:
  en: "https://tldlog.com/glossary/special-use-domain-names/"
  es: "https://tldlog.com/es/glosario/nombres-dominio-uso-especial/"
  de: "https://tldlog.com/de/glossar/special-use-domainnamen/"
  fr: "https://tldlog.com/fr/glossaire/noms-domaine-usage-special/"
  it: "https://tldlog.com/it/glossario/nomi-dominio-uso-speciale/"
  pt-BR: "https://tldlog.com/pt/glossario/nomes-dominio-uso-especial/"
  ru: "https://tldlog.com/ru/glossariy/domennye-imena-spetsialnogo-naznacheniya/"
---

# 特殊用途域名

保留作技术用途的名称，不像普通域名那样在公共DNS中注册或查询。例如：用于本地网络中设备相互发现的.local、用于家庭网络的home.arpa、用于Tor网络的.onion、用于DNS之外命名系统的.alt，以及.test。ICANN通过另一项决定将.internal保留给私有网络使用。

## 相关术语

- [名称冲突](https://tldlog.com/zh/cihui/mingcheng-chongtu/)
- [替代根](https://tldlog.com/zh/cihui/tidai-gen/)
- [IANA](https://tldlog.com/zh/cihui/iana/)
- [根区](https://tldlog.com/zh/cihui/genqu/)
- [.arpa](https://tldlog.com/zh/cihui/arpa/)