Top level domains for domain names that you can buy from Office 365

When you register a domain name with Office 365, you can choose from the following top level domains for your domain.









Tip: If you prefer, instead of paying to register a domain, you can use the initial domain that comes with Office 365.

Domain names are used in URLs and email addresses, and they have different levels. For example, is a domain name with the following three levels:

  • .com is the top-level domain

  • contoso is the second-level domain

  • mail is the third-level domain

To learn more about DNS and domains, watch the video (3:08).

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