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什么是域名? - Practical Tips

什么是域名?

by Estelle

域名是什么,从您在网站搜索中输入的名称中就可以看出。域名不包含长数字是有充分理由的。

明确解释:什么是域名

在互联网上,每个托管网站的服务器都有一个IP地址——由一系列数字组成,例如192.168.1.1。当然,人们很难记住这些地址。域名将这些IP地址转换为易于理解的名称,例如

  • 您可以在浏览器地址栏中输入IP地址或域名,访问感兴趣的网站。 例如,要访问谷歌网站,您可以输入“173.194.70.94”或“www.google.de”。
  • 一个域名可以分为三个部分。第一级域名是结尾,例如:.de、.com、.to、.uk等。
  • 第二级域名是域名的第二部分,用于指示您正在访问的页面。通常是机构或公司的名称。二级域的例子包括google.de、facebook.com、
  • 三级域也称为子域,允许网站运营者对类别进行划分。如果网站包含大量信息,三级域尤其有用。
  • 域名系统(简称DNS)用于将域名转换为IP地址。它就像一本互联网电话簿。当您在浏览器中输入一个域名时,DNS会找到相应的IP地址,并将您转发到所需的网站。

不同类型的域名

域名可以根据其用途或结构进行分类:

  • 通用域名:顶级域名(简称TLD),例如.com、.org或.info,在全球范围内使用,不与特定国家绑定。
  • 国家代码顶级域名(ccTLD):适用于德国(.de)、法国(.fr)和英国(.uk)等国家。
  • 新顶级域:现代且专业的后缀,也称为新顶级域,例如.tech、.blog或.shop。

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