Every extension, oldest first
bt21
We have seen bt21 registered in 54 extensions. The oldest is bt21.com, registered on 11 May 2009; the newest, bt21.online, on 29 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 54 extensions
- Oldest
- 2009 bt21.com
- Newest
- 2026 bt21.online
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 2009 | bt21.com | 11 May 2009 | May 2027 | Gabia, Inc. | 11 May 2009 expires May 2027 | checking… |  |
| 2010 | bt21.co.za | 16 Apr 2010 | Apr 2027 | xneelo (Pty) Ltd | 16 Apr 2010 expires Apr 2027 | checking… | |
| 2012 | bt21.co.uk | 24 Aug 2012 | Aug 2027 | ANY-Web Limited | 24 Aug 2012 expires Aug 2027 | checking… |  |
| 2015 | bt21.co | 11 Jul 2015 | Jul 2026 (passed) | Namescout Ltd | 11 Jul 2015 expiry Jul 2026 (passed) | checking… | |
| 2015 | bt21.org | 7 Oct 2015 | Oct 2026 (passed) | Domain.com - Network Solution… | 7 Oct 2015 expiry Oct 2026 (passed) | checking… | |
| 2016 | bt21.us | 21 Sep 2016 | Oct 2027 | Domain.com | 21 Sep 2016 expires Oct 2027 | checking… |  |
| 2017 | bt21.co.kr | 31 Aug 2017 | Aug 2027 | — | 31 Aug 2017 expires Aug 2027 | checking… | |
| 2018 | bt21.xyz | 8 Mar 2018 | Mar 2027 | Gname.com Pte. Ltd. | 8 Mar 2018 expires Mar 2027 | checking… | |
| 2018 | bt21.app | 8 May 2018 | May 2027 | 1API GmbH | 8 May 2018 expires May 2027 | checking… | |
| 2019 | bt21.net | 26 Feb 2019 | Feb 2027 | NameSilo, LLC | 26 Feb 2019 expires Feb 2027 | checking… | |
| 2020 | bt21.life | 22 Mar 2020 | Mar 2027 | Gabia Inc. | 22 Mar 2020 expires Mar 2027 | checking… |  |
| 2020 | bt21.jp | 23 Mar 2020 | Mar 2027 | — | 23 Mar 2020 expires Mar 2027 | checking… |  |
| 2020 | bt21.site | 23 Mar 2020 | Mar 2027 | Gabia, Inc. | 23 Mar 2020 expires Mar 2027 | checking… | |
| 2020 | bt21.cn | 11 Nov 2020 | Nov 2027 | 烟台帝思普网络科技有限公司 | 11 Nov 2020 expires Nov 2027 | checking… |  |
| 2021 | bt21.com.mx | 25 Oct 2021 | Oct 2026 (passed) | GoDaddy.com | 25 Oct 2021 expiry Oct 2026 (passed) | checking… |  |
| 2023 | bt21.com.br | 26 Apr 2023 | Apr 2028 | — | 26 Apr 2023 expires Apr 2028 | checking… | |
| 2024 | bt21.nl | 2 Jul 2024 | — | XNS Registrar B.V. | 2 Jul 2024 | checking… | |
| 2025 | bt21.store | 23 Jun 2025 | Jun 2026 (passed) | Gabia, Inc. | 23 Jun 2025 expiry Jun 2026 (passed) | checking… | |
| 2025 | bt21.fun | 27 Jul 2025 | Jul 2026 (passed) | HOSTINGER operations, UAB | 27 Jul 2025 expiry Jul 2026 (passed) | checking… |  |
| 2025 | bt21.cc | 10 Sep 2025 | Sep 2026 (passed) | Dynadot Inc | 10 Sep 2025 expiry Sep 2026 (passed) | checking… | |
| 2026 | bt21.bet | 7 May 2026 | May 2027 | Dynadot Inc | 7 May 2026 expires May 2027 | checking… |  |
| 2026 | bt21.win | 7 May 2026 | May 2027 | Dynadot Inc | 7 May 2026 expires May 2027 | checking… |  |
| 2026 | bt21.vip | 9 May 2026 | May 2027 | Dynadot Inc | 9 May 2026 expires May 2027 | checking… |  |
| 2026 | bt21.homes | 20 May 2026 | May 2027 | Dynadot Inc | 20 May 2026 expires May 2027 | checking… |  |
| 2026 | bt21.pro | 2 Jun 2026 | Jun 2027 | Dynadot Inc | 2 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.bid | 7 Jun 2026 | Jun 2027 | Dynadot Inc | 7 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.best | 8 Jun 2026 | Jun 2027 | Dynadot Inc | 8 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.club | 8 Jun 2026 | Jun 2027 | Dynadot Inc | 8 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.bio | 9 Jun 2026 | Jun 2027 | Dynadot Inc | 9 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.onl | 12 Jun 2026 | Jun 2027 | Dynadot Inc | 12 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.asia | 18 Jun 2026 | Jun 2027 | Dynadot Inc | 18 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.biz.id | 18 Jun 2026 | Jun 2027 | PT Registrasi Neva Angkasa | 18 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | bt21.web.id | 18 Jun 2026 | Jun 2027 | PT Registrasi Neva Angkasa | 18 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.one | 25 Jun 2026 | Jun 2027 | Dynadot Inc | 25 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.top | 25 Jun 2026 | Jun 2027 | Dynadot LLC | 25 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | bt21.biz | 8 Jul 2026 | Jul 2027 | DYNADOT LLC | 8 Jul 2026 expires Jul 2027 | checking… | |
| 2026 | bt21.vin | 17 Aug 2026 | Aug 2027 | Dynadot Inc | 17 Aug 2026 expires Aug 2027 | checking… |  |
| 2026 | bt21.cam | 20 Oct 2026 | Oct 2027 | Dynadot Inc | 20 Oct 2026 expires Oct 2027 | checking… |  |
| 2026 | bt21.lat | 26 Oct 2026 | Oct 2027 | DYNADOT LLC | 26 Oct 2026 expires Oct 2027 | checking… |  |
| 2026 | bt21.online | 29 Oct 2026 | Oct 2027 | Chengdu West Dimension Digita… | 29 Oct 2026 expires Oct 2027 | checking… |  |
| — | bt21.cafe | no date on record | — | — | no date on record | checking… | |
| — | bt21.digital | no date on record | — | — | no date on record | checking… |  |
| — | bt21.im | no date on record | — | — | no date on record | checking… | |
| — | bt21.in | no date on record | — | — | no date on record | checking… | |
| — | bt21.market | no date on record | — | — | no date on record | checking… | |
| — | bt21.my | no date on record | — | — | no date on record | checking… |  |
| — | bt21.pl | no date on record | — | — | no date on record | checking… | |
| — | bt21.sbs | no date on record | — | — | no date on record | checking… | |
| — | bt21.shop | no date on record | — | — | no date on record | checking… | |
| — | bt21.solutions | no date on record | — | — | no date on record | checking… |  |
| — | bt21.studio | no date on record | — | — | no date on record | checking… | |
| — | bt21.uk | no date on record | — | — | no date on record | checking… | |
| — | bt21.vu | no date on record | — | — | no date on record | checking… | |
| — | bt21.ws | no date on record | — | — | no date on record | checking… |  |
Seen before, not in DNS now
These names were registered when we last saw them, but they have no nameservers today. They may have lapsed, or be registered and parked without DNS. Not in DNS does not mean free: only the registry can say that.
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|
How to read this
Registered is the creation date in the registry's own record (WHOIS or RDAP) when we last looked. A name that lapsed and was registered again shows its newest registration.
No date on record means we do not have the date yet, or the registry does not publish one. Missing years fill in over time, and so do registrations we have not seen yet.
Not in DNS means the name has no nameservers today. It never means the name is free to register: only a registry can tell you that.