.windows
.windows is a brand extension, run by Microsoft Corporation since 2015. Only Microsoft Corporation, its affiliates and trademark licensees can register .windows names; they are not for sale to the public.
| Type | Brand |
|---|---|
| Registry operator | Microsoft Corporation |
| Who can register | Brand owner only Brand extension: only the registry operator, its affiliates and trademark licensees register names. |
| In the root zone since | 10 June 2015 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nominet.uk/windows/ |
| WHOIS server | None listed |
| IANA record | iana.org/domains/root/db/windows |
Look up a .windows domain
The .windows registry publishes registration data over RDAP. The free domain report reads it and shows a .windows domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
More extensions from Microsoft Corporation
| .office | Generic · 2015 |
| .skype | Brand · 2015 |
| .bing | Brand · 2015 |
| .hotmail | Brand · 2015 |
| .microsoft | Brand · 2015 |
| .azure | Brand · 2015 |
| .xbox | Brand · 2015 |
New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.
Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.
Frequently asked questions
Who runs the .windows extension?
Microsoft Corporation is the registry operator for .windows. The registry keeps the list of every .windows name; registrars sell the names to the public.
Can anyone register a .windows domain?
Only Microsoft Corporation, its affiliates and trademark licensees can register .windows names; they are not for sale to the public.
When was .windows created?
.windows was added to the DNS root zone on 10 June 2015, according to IANA.
How do I look up who owns a .windows domain?
The .windows registry publishes registration data over RDAP at https://rdap.nominet.uk/windows/. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .windows signed with DNSSEC?
Yes. The .windows zone is signed, so a .windows domain can turn on DNSSEC once its registrar adds a DS record.