---
id: "subdomain"
kind: "glossary-term"
title: "子域名"
language: "zh-Hans"
category: "DNS与技术基础"
updated: "2026-10-10T12:00:00Z"
canonical: "https://tldlog.com/zh/cihui/ziyuming/"
translations:
  en: "https://tldlog.com/glossary/subdomain/"
  es: "https://tldlog.com/es/glosario/subdominio/"
  de: "https://tldlog.com/de/glossar/subdomain/"
  fr: "https://tldlog.com/fr/glossaire/sous-domaine/"
  it: "https://tldlog.com/it/glossario/sottodominio/"
  pt-BR: "https://tldlog.com/pt/glossario/subdominio/"
  ru: "https://tldlog.com/ru/glossariy/poddomen/"
---

# 子域名

在已注册域名下创建的名称，例如example.com下的shop.example.com。域名所有者可以在自己的DNS中创建子域名，无须另行注册。注册管理机构和注册服务机构通常不参与子域名的管理。

## 相关术语

- [二级域](https://tldlog.com/zh/cihui/erjiyu/)
- [域名](https://tldlog.com/zh/cihui/yuming/)
- [CNAME记录](https://tldlog.com/zh/cihui/cname-jilu/)