Find your domain registrar for Office 365

Check the Domains FAQ if you don't find what you're looking for.

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Domain registrar DNS hosting provider

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Find your domain name registrar

Note: Domain names ending with two-letter combinations (like .ca or .jp) won't work with this tool.

1. On the InterNIC search page, in the Whois Search box, type your domain. For example, contoso.com.

2. Select the Domain option, and then click Submit.

3. On the Whois Search Results page, locate the Registrar entry. This entry lists the organization that provides registrar service for your domain.

Find your DNS hosting provider

Note: Domain names ending with two-letter combinations (like .ca or .jp) won't work with this tool.

1. On the InterNIC search page, in the Whois Search box, type your domain. For example, contoso.com.

2. Select the Domain option, and then click Submit.

3. On the Whois Search Results page, locate the first Name Server entry.

4. Copy the name server (NS) information that appears after the colon (:), and then paste it into the Search box at the top of the page. Select Nameserver, and then click Submit.

5. On the Whois Search Results page, locate the Registrar entry. This entry lists your DNS hosting provider, the DNS provider who owns the name server for your domain.

Still need help?

Check the Domains FAQ if you don't find what you're looking for.

To set up a domain in Office 365 you must own one and change some of the DNS records for your domain.

If you don't already own a domain, you can buy one from Office 365.