子域名
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://tldfyi.com/iframe/glossary/subdomain/" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://tldfyi.com/glossary/subdomain/Add a dynamic SVG badge to your README or docs.
[](https://tldfyi.com/glossary/subdomain/)Use the native HTML custom element.
子域名（Subdomain）是通过在域名前添加以点分隔的标签而创建的、属于更大域名的一部分。子域名允许您在不注册额外域名的情况下，组织网站的不同部分或将流量指向不同服务器。
示例
In blog.example.com, 'blog' is a subdomain of example.com. Common subdomains include www, mail, shop, and api.