Every extension, oldest first
duo
We have seen duo registered in 313 extensions. The oldest is duo.org, registered on 27 Mar 1997; the newest, duo.tech, on 12 Sep 2026.
Checking which of them answer in DNS today…
- Seen in
- 313 extensions
- Oldest
- 1997 duo.org
- Newest
- 2026 duo.tech
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1997 | duo.org | 27 Mar 1997 | Mar 2027 | NameCheap, Inc. | 27 Mar 1997 expires Mar 2027 | checking… |  |
| 1997 | duo.net | 12 Jun 1997 | Jun 2027 | SafeNames Ltd. | 12 Jun 1997 expires Jun 2027 | checking… |  |
| 1998 | duo.co.kr | 11 Jun 1998 | Oct 2028 | — | 11 Jun 1998 expires Oct 2028 | checking… |  |
| 1998 | duo.com | 14 Oct 1998 | Oct 2027 | MarkMonitor, Inc. | 14 Oct 1998 expires Oct 2027 | checking… |  |
| 1998 | duo.it | 2 Dec 1998 | — | — | 2 Dec 1998 | checking… | |
| 1998 | duo.nl | 18 Dec 1998 | — | — | 18 Dec 1998 | checking… |  |
| 1998 | duo.com.br | 24 Dec 1998 | — | — | 24 Dec 1998 | checking… |  |
| 2000 | duo.or.jp | 11 Apr 2000 | Apr 2027 | — | 11 Apr 2000 expires Apr 2027 | checking… | |
| 2000 | duo.ca | 26 Oct 2000 | Dec 2033 | Rebel.ca Corp. | 26 Oct 2000 expires Dec 2033 | checking… |  |
| 2001 | duo.kiev.ua | 28 Feb 2001 | Aug 2027 | WEBCRAFT LLC | 28 Feb 2001 expires Aug 2027 | checking… | |
| 2001 | duo.is | 4 May 2001 | May 2027 | — | 4 May 2001 expires May 2027 | checking… |  |
| 2001 | duo.cz | 10 Aug 2001 | Oct 2026 (passed) | REG-WEBGLOBE | 10 Aug 2001 expiry Oct 2026 (passed) | checking… | |
| 2001 | duo.se | 18 Oct 2001 | — | Loopia AB | 18 Oct 2001 | checking… | |
| 2002 | duo.com.mx | 10 Apr 2002 | Apr 2027 | Medios Corp. | 10 Apr 2002 expires Apr 2027 | checking… |  |
| 2002 | duo.us | 24 Apr 2002 | Apr 2027 | GoDaddy.com, LLC | 24 Apr 2002 expires Apr 2027 | checking… | |
| 2004 | duo.cn | 15 May 2004 | May 2027 | Canada 001 names Ltd. | 15 May 2004 expires May 2027 | checking… |  |
| 2004 | duo.cc | 6 Nov 2004 | Nov 2026 | eName Technology Co., Ltd. | 6 Nov 2004 expires Nov 2026 | checking… | |
| 2005 | duo.com.tw | 11 Jan 2005 | Jan 2027 | FET/NCIC | 11 Jan 2005 expires Jan 2027 | checking… |  |
| 2005 | duo.ma | 18 Jan 2005 | Jan 2026 (passed) | ITISSALAT AL-MAGHRIB | 18 Jan 2005 expiry Jan 2026 (passed) | checking… | |
| 2005 | duo.in | 16 Feb 2005 | Feb 2027 | Dynadot, LLC | 16 Feb 2005 expires Feb 2027 | checking… |  |
| 2005 | duo.co.in | 25 Mar 2005 | Mar 2027 | Endurance International Group… | 25 Mar 2005 expires Mar 2027 | checking… |  |
| 2006 | duo.info | 1 Oct 2006 | Oct 2027 | One.com A/S | 1 Oct 2006 expires Oct 2027 | checking… | |
| 2007 | duo.kr | 27 Feb 2007 | Feb 2027 | — | 27 Feb 2007 expires Feb 2027 | checking… | |
| 2008 | duo.ru | 26 May 2008 | — | RU-CENTER-RU | 26 May 2008 | checking… | |
| 2009 | duo.mx | 29 Jul 2009 | Jul 2027 | Medios Corp. | 29 Jul 2009 expires Jul 2027 | checking… |  |
| 2011 | duo.cl | 7 Dec 2011 | Jun 2027 | NIC Chile | 7 Dec 2011 expires Jun 2027 | checking… |  |
| 2011 | duo.io | 23 Dec 2011 | Dec 2026 | MarkMonitor, Inc. | 23 Dec 2011 expires Dec 2026 | checking… | |
| 2013 | duo.imb.br | 26 Aug 2013 | — | — | 26 Aug 2013 | checking… |  |
| 2014 | duo.uno | 28 Apr 2014 | Apr 2026 (passed) | INWX GmbH | 28 Apr 2014 expiry Apr 2026 (passed) | checking… | |
| 2014 | duo.pt | 3 Jun 2014 | Jun 2027 | — | 3 Jun 2014 expires Jun 2027 | checking… |  |
| 2014 | duo.click | 14 Dec 2014 | Dec 2026 | 1API GmbH | 14 Dec 2014 expires Dec 2026 | checking… | |
| 2014 | duo.gent | 22 Dec 2014 | Dec 2026 | Ascio Technologies Inc. Danma… | 22 Dec 2014 expires Dec 2026 | checking… | |
| 2015 | duo.xyz | 24 Aug 2015 | Aug 2027 | CHENGDU WEST DIMENSION DIGITA… | 24 Aug 2015 expires Aug 2027 | checking… | |
| 2015 | duo.team | 5 Nov 2015 | Nov 2027 | GoDaddy.com, LLC | 5 Nov 2015 expires Nov 2027 | checking… | |
| 2016 | duo.by | 19 Jan 2016 | Jan 2026 (passed) | Reliable Software, Ltd | 19 Jan 2016 expiry Jan 2026 (passed) | checking… |  |
| 2016 | duo.digital | 21 Jan 2016 | Jan 2027 | united-domains GmbH | 21 Jan 2016 expires Jan 2027 | checking… |  |
| 2016 | duo.cloud | 16 Feb 2016 | Feb 2027 | GoDaddy | 16 Feb 2016 expires Feb 2027 | checking… | |
| 2016 | duo.moe | 17 Feb 2016 | Feb 2027 | Name.com, Inc. | 17 Feb 2016 expires Feb 2027 | checking… |  |
| 2016 | duo.dental | 6 May 2016 | May 2026 (passed) | united-domains GmbH | 6 May 2016 expiry May 2026 (passed) | checking… |  |
| 2016 | duo.video | 18 May 2016 | May 2026 (passed) | MarkMonitor Inc. | 18 May 2016 expiry May 2026 (passed) | checking… |  |
| 2016 | duo.md | 22 Jun 2016 | Jun 2027 | — | 22 Jun 2016 expires Jun 2027 | checking… | |
| 2016 | duo.sh | 22 Jun 2016 | Jun 2027 | MarkMonitor Inc. | 22 Jun 2016 expires Jun 2027 | checking… | |
| 2016 | duo.london | 23 Jun 2016 | Jun 2026 (passed) | MarkMonitor, Inc (TLDs) | 23 Jun 2016 expiry Jun 2026 (passed) | checking… | |
| 2016 | duo.gmbh | 11 Aug 2016 | Aug 2026 (passed) | InterNetX GmbH | 11 Aug 2016 expiry Aug 2026 (passed) | checking… | |
| 2016 | duo.am | 13 Aug 2016 | Aug 2026 (passed) | abcdomain | 13 Aug 2016 expiry Aug 2026 (passed) | checking… |  |
| 2016 | duo.life | 31 Oct 2016 | Oct 2027 | Name.com, Inc | 31 Oct 2016 expires Oct 2027 | checking… |  |
| 2016 | duo.care | 7 Nov 2016 | Nov 2026 | Wild West Domains, LLC | 7 Nov 2016 expires Nov 2026 | checking… | |
| 2017 | duo.ventures | 4 Jan 2017 | Jan 2027 | GoDaddy.com, LLC | 4 Jan 2017 expires Jan 2027 | checking… |  |
| 2017 | duo.cafe | 10 Feb 2017 | Feb 2027 | NameCheap, Inc. | 10 Feb 2017 expires Feb 2027 | checking… | |
| 2017 | duo.pictures | 7 Apr 2017 | Apr 2027 | GoDaddy.com, LLC | 7 Apr 2017 expires Apr 2027 | checking… |  |
| 2017 | duo.one | 2 Oct 2017 | Oct 2026 (passed) | NameSilo, LLC | 2 Oct 2017 expiry Oct 2026 (passed) | checking… |  |
| 2017 | duo.mk | 11 Dec 2017 | Dec 2026 | ALSANET-REG | 11 Dec 2017 expires Dec 2026 | checking… |  |
| 2017 | duo.ai | 16 Dec 2017 | Oct 2027 | GoDaddy.com, LLC | 16 Dec 2017 expires Oct 2027 | checking… |  |
| 2018 | duo.fyi | 16 Jul 2018 | Jul 2026 (passed) | Gandi SAS | 16 Jul 2018 expiry Jul 2026 (passed) | checking… |  |
| 2018 | duo.studio | 23 Aug 2018 | Aug 2026 (passed) | GoDaddy.com, LLC | 23 Aug 2018 expiry Aug 2026 (passed) | checking… |  |
| 2018 | duo.blue | 31 Oct 2018 | Oct 2026 | NameCheap, Inc. | 31 Oct 2018 expires Oct 2026 | checking… | |
| 2019 | duo.ee | 1 Jan 2019 | Jan 2027 | Estonia .ee Top Level Domain… | 1 Jan 2019 expires Jan 2027 | checking… |  |
| 2019 | duo.la | 20 Mar 2019 | Mar 2036 | Nets To Limited | 20 Mar 2019 expires Mar 2036 | checking… |  |
| 2019 | duo.uk | 26 Mar 2019 | Mar 2027 | Mr Steve Walsh and Mr Paul Wa… | 26 Mar 2019 expires Mar 2027 | checking… |  |
| 2019 | duo.computer | 5 Jun 2019 | Jun 2026 (passed) | Dynadot Inc | 5 Jun 2019 expiry Jun 2026 (passed) | checking… |  |
| 2019 | duo.africa | 20 Sep 2019 | Sep 2026 (passed) | Lexsynergy Limited | 20 Sep 2019 expiry Sep 2026 (passed) | checking… | |
| 2019 | duo.center | 11 Oct 2019 | Oct 2034 | Porkbun LLC | 11 Oct 2019 expires Oct 2034 | checking… | |
| 2019 | duo.fr | 17 Oct 2019 | Oct 2026 (passed) | SOLIDNAMES | 17 Oct 2019 expiry Oct 2026 (passed) | checking… |  |
| 2019 | duo.cm | 12 Nov 2019 | Nov 2026 | Netcom.cm Sarl | 12 Nov 2019 expires Nov 2026 | checking… | |
| 2020 | duo.cool | 10 Mar 2020 | Mar 2028 | DNSPod, Inc. | 10 Mar 2020 expires Mar 2028 | checking… | |
| 2020 | duo.yoga | 26 Aug 2020 | Aug 2027 | GoDaddy.com, LLC | 26 Aug 2020 expires Aug 2027 | checking… | |
| 2020 | duo.co | 14 Nov 2020 | Nov 2026 | Porkbun | 14 Nov 2020 expires Nov 2026 | checking… | |
| 2020 | duo.bond | 15 Nov 2020 | Nov 2030 | Dominet (HK) Limited | 15 Nov 2020 expires Nov 2030 | checking… |  |
| 2020 | duo.ovh | 6 Dec 2020 | Dec 2026 | OVH | 6 Dec 2020 expires Dec 2026 | checking… |  |
| 2021 | duo.page | 18 Feb 2021 | Feb 2027 | Name.com, Inc. | 18 Feb 2021 expires Feb 2027 | checking… |  |
| 2021 | duo.black | 26 Mar 2021 | Mar 2027 | IONOS SE | 26 Mar 2021 expires Mar 2027 | checking… |  |
| 2021 | duo.gold | 16 Apr 2021 | Apr 2027 | Chengdu West Dimension Digita… | 16 Apr 2021 expires Apr 2027 | checking… | |
| 2021 | duo.company | 27 Sep 2021 | Sep 2027 | GoDaddy.com, LLC | 27 Sep 2021 expires Sep 2027 | checking… |  |
| 2022 | duo.family | 27 Jan 2022 | Jan 2027 | OVH SAS | 27 Jan 2022 expires Jan 2027 | checking… | |
| 2022 | duo.red | 25 Feb 2022 | Feb 2027 | NameSilo, LLC | 25 Feb 2022 expires Feb 2027 | checking… |  |
| 2022 | duo.cash | 10 Mar 2022 | Mar 2027 | NameCheap, Inc. | 10 Mar 2022 expires Mar 2027 | checking… |  |
| 2022 | duo.com.ar | 20 Jul 2022 | — | nicar | 20 Jul 2022 | checking… |  |
| 2022 | duo.st | 21 Sep 2022 | Sep 2026 (passed) | Gandi | 21 Sep 2022 expiry Sep 2026 (passed) | checking… | |
| 2023 | duo.boutique | 3 Feb 2023 | Feb 2027 | Squarespace Domains II LLC | 3 Feb 2023 expires Feb 2027 | checking… |  |
| 2023 | duo.moscow | 20 Feb 2023 | Feb 2027 | Regional Network Information… | 20 Feb 2023 expires Feb 2027 | checking… | |
| 2023 | duo.vc | 9 Mar 2023 | Mar 2026 (passed) | Sav.com, LLC | 9 Mar 2023 expiry Mar 2026 (passed) | checking… |  |
| 2023 | duo.co.ke | 22 Mar 2023 | Mar 2027 | CEL3 | 22 Mar 2023 expires Mar 2027 | checking… | |
| 2023 | duo.dance | 27 Mar 2023 | Mar 2027 | OVH SAS | 27 Mar 2023 expires Mar 2027 | checking… | |
| 2023 | duo.lighting | 26 Jun 2023 | Jun 2026 (passed) | GoDaddy.com, LLC | 26 Jun 2023 expiry Jun 2026 (passed) | checking… |  |
| 2023 | duo.tax | 26 Jun 2023 | Jun 2026 (passed) | Synergy Wholesale Accreditati… | 26 Jun 2023 expiry Jun 2026 (passed) | checking… |  |
| 2023 | duo.software | 1 Sep 2023 | Sep 2026 (passed) | Squarespace Domains II LLC | 1 Sep 2023 expiry Sep 2026 (passed) | checking… |  |
| 2023 | duo.adm.br | 4 Sep 2023 | — | — | 4 Sep 2023 | checking… |  |
| 2023 | duo.wtf | 27 Oct 2023 | Oct 2026 (passed) | GoDaddy.com, LLC | 27 Oct 2023 expiry Oct 2026 (passed) | checking… |  |
| 2023 | duo.ninja | 2 Dec 2023 | Dec 2026 | Super Registry Ltd | 2 Dec 2023 expires Dec 2026 | checking… |  |
| 2024 | duo.swiss | 18 Jan 2024 | Jan 2027 | Hostpoint | 18 Jan 2024 expires Jan 2027 | checking… |  |
| 2024 | duo.soccer | 1 Mar 2024 | Mar 2027 | Tucows Domains Inc. | 1 Mar 2024 expires Mar 2027 | checking… |  |
| 2024 | duo.trading | 6 Mar 2024 | Mar 2027 | Dynadot Inc | 6 Mar 2024 expires Mar 2027 | checking… |  |
| 2024 | duo.law | 9 Mar 2024 | Mar 2027 | 101domain GRS Limited | 9 Mar 2024 expires Mar 2027 | checking… |  |
| 2024 | duo.co.cr | 14 Mar 2024 | — | NIC-REG1 | 14 Mar 2024 | checking… |  |
| 2024 | duo.live | 11 Apr 2024 | Apr 2027 | Gandi SAS | 11 Apr 2024 expires Apr 2027 | checking… |  |
| 2024 | duo.estate | 26 May 2024 | May 2026 (passed) | NameCheap, Inc. | 26 May 2024 expiry May 2026 (passed) | checking… |  |
| 2024 | duo.fi | 28 May 2024 | — | — | 28 May 2024 | checking… |  |
| 2024 | duo.immo | 24 Jul 2024 | Jul 2026 (passed) | united-domains GmbH | 24 Jul 2024 expiry Jul 2026 (passed) | checking… |  |
| 2024 | duo.org.br | 9 Aug 2024 | — | — | 9 Aug 2024 | checking… |  |
| 2024 | duo.energy | 11 Aug 2024 | Aug 2026 (passed) | Squarespace Domains II LLC | 11 Aug 2024 expiry Aug 2026 (passed) | checking… |  |
| 2024 | duo.coach | 28 Aug 2024 | Aug 2026 (passed) | Dynadot Inc | 28 Aug 2024 expiry Aug 2026 (passed) | checking… |  |
| 2024 | duo.vegas | 2 Oct 2024 | Oct 2026 (passed) | OVH SAS | 2 Oct 2024 expiry Oct 2026 (passed) | checking… |  |
| 2024 | duo.now | 3 Oct 2024 | Oct 2026 (passed) | NameCheap, Inc. | 3 Oct 2024 expiry Oct 2026 (passed) | checking… |  |
| 2024 | duo.cx | 4 Oct 2024 | Oct 2026 (passed) | CentralNic Ltd | 4 Oct 2024 expiry Oct 2026 (passed) | checking… | |
| 2024 | duo.wine | 11 Oct 2024 | Oct 2026 (passed) | NameCheap, Inc. | 11 Oct 2024 expiry Oct 2026 (passed) | checking… |  |
| 2024 | duo.si | 16 Oct 2024 | Oct 2027 | AOI d.o.o. | 16 Oct 2024 expires Oct 2027 | checking… |  |
| 2024 | duo.archi | 24 Nov 2024 | Nov 2026 | OVH SAS | 24 Nov 2024 expires Nov 2026 | checking… |  |
| 2024 | duo.world | 28 Nov 2024 | Nov 2027 | 1366 | 28 Nov 2024 expires Nov 2027 | checking… | |
| 2024 | duo.money | 8 Dec 2024 | Dec 2026 | Porkbun LLC | 8 Dec 2024 expires Dec 2026 | checking… |  |
| 2024 | duo.legal | 18 Dec 2024 | Dec 2026 | Domain Science Kutatási Szolg… | 18 Dec 2024 expires Dec 2026 | checking… |  |
| 2025 | duo.yt | 10 May 2025 | May 2026 (passed) | Hosting Concepts B.V. d/b/a O… | 10 May 2025 expiry May 2026 (passed) | checking… | |
| 2025 | duo.arq.br | 12 Jul 2025 | — | — | 12 Jul 2025 | checking… |  |
| 2025 | duo.id | 4 Aug 2025 | — | — | 4 Aug 2025 | checking… | |
| 2025 | duo.ai.in | 16 Aug 2025 | Aug 2027 | Dynadot, LLC | 16 Aug 2025 expires Aug 2027 | checking… |  |
| 2025 | duo.no | 9 Sep 2025 | — | One.com | 9 Sep 2025 | checking… | |
| 2025 | duo.pics | 16 Sep 2025 | Sep 2026 (passed) | Porkbun LLC | 16 Sep 2025 expiry Sep 2026 (passed) | checking… |  |
| 2025 | duo.ad | 31 Oct 2025 | Oct 2026 | Namecheap, Inc. | 31 Oct 2025 expires Oct 2026 | checking… |  |
| 2025 | duo.icu | 23 Dec 2025 | Dec 2026 | Spaceship, Inc. | 23 Dec 2025 expires Dec 2026 | checking… | |
| 2026 | duo.dk | 3 Feb 2026 | Feb 2027 | — | 3 Feb 2026 expires Feb 2027 | checking… | |
| 2026 | duo.com.ng | 1 May 2026 | May 2027 | TRUEHOST CLOUD | 1 May 2026 expires May 2027 | checking… |  |
| 2026 | duo.asia | 5 May 2026 | May 2027 | Dynadot Inc | 5 May 2026 expires May 2027 | checking… |  |
| 2026 | duo.ooo | 18 May 2026 | May 2027 | Name.com, Inc. | 18 May 2026 expires May 2027 | checking… |  |
| 2026 | duo.gd | 29 Jul 2026 | Jul 2027 | Dynadot Inc | 29 Jul 2026 expires Jul 2027 | checking… |  |
| 2026 | duo.re | 26 Aug 2026 | Aug 2027 | OVH | 26 Aug 2026 expires Aug 2027 | checking… | |
| 2026 | duo.tech | 12 Sep 2026 | Sep 2027 | NAMECHEAP INC | 12 Sep 2026 expires Sep 2027 | checking… |  |
| — | duo.ac | no date on record | — | — | no date on record | checking… | |
| — | duo.ae | no date on record | — | — | no date on record | checking… |  |
| — | duo.agency | no date on record | — | — | no date on record | checking… |  |
| — | duo.al | no date on record | — | — | no date on record | checking… |  |
| — | duo.app | no date on record | — | — | no date on record | checking… | |
| — | duo.ar | no date on record | — | — | no date on record | checking… | |
| — | duo.as | no date on record | — | — | no date on record | checking… | |
| — | duo.at | no date on record | — | MICROLAB GmbH | no date on record | checking… |  |
| — | duo.au | no date on record | — | — | no date on record | checking… |  |
| — | duo.ax | no date on record | — | — | no date on record | checking… | |
| — | duo.ba | no date on record | — | — | no date on record | checking… | |
| — | duo.bar | no date on record | — | — | no date on record | checking… | |
| — | duo.be | no date on record | — | clientTransferProhibited | no date on record | checking… |  |
| — | duo.berlin | no date on record | — | — | no date on record | checking… | |
| — | duo.bet | no date on record | — | — | no date on record | checking… |  |
| — | duo.bg | no date on record | — | — | no date on record | checking… |  |
| — | duo.br | no date on record | — | — | no date on record | checking… | |
| — | duo.build | no date on record | — | — | no date on record | checking… | |
| — | duo.bz | no date on record | — | — | no date on record | checking… |  |
| — | duo.ch | no date on record | — | — | no date on record | checking… | |
| — | duo.chat | no date on record | — | — | no date on record | checking… | |
| — | duo.christmas | no date on record | — | — | no date on record | checking… | |
| — | duo.co.il | no date on record | — | — | no date on record | checking… |  |
| — | duo.co.jp | no date on record | — | — | no date on record | checking… | |
| — | duo.co.nz | no date on record | — | — | no date on record | checking… | |
| — | duo.co.rs | no date on record | — | — | no date on record | checking… |  |
| — | duo.co.uk | no date on record | — | — | no date on record | checking… | |
| — | duo.co.za | no date on record | — | — | no date on record | checking… |  |
| — | duo.codes | no date on record | — | — | no date on record | checking… | |
| — | duo.coffee | no date on record | — | — | no date on record | checking… |  |
| — | duo.college | no date on record | — | — | no date on record | checking… | |
| — | duo.com.au | no date on record | — | Discount Domain Name Services… | no date on record | checking… |  |
| — | duo.com.bd | no date on record | — | — | no date on record | checking… |  |
| — | duo.com.cn | no date on record | — | 厦门易名科技股份有限公司 | no date on record | checking… | |
| — | duo.com.es | no date on record | — | — | no date on record | checking… |  |
| — | duo.com.pa | no date on record | — | — | no date on record | checking… |  |
| — | duo.com.pe | no date on record | — | NIC.PE | no date on record | checking… |  |
| — | duo.com.pl | no date on record | — | — | no date on record | checking… |  |
| — | duo.com.py | no date on record | — | — | no date on record | checking… |  |
| — | duo.com.sg | no date on record | — | — | no date on record | checking… | |
| — | duo.com.ua | no date on record | — | — | no date on record | checking… |  |
| — | duo.com.uy | no date on record | — | — | no date on record | checking… |  |
| — | duo.construction | no date on record | — | — | no date on record | checking… | |
| — | duo.consulting | no date on record | — | — | no date on record | checking… | |
| — | duo.country | no date on record | — | — | no date on record | checking… |  |
| — | duo.date | no date on record | — | — | no date on record | checking… |  |
| — | duo.de | no date on record | — | — | no date on record | checking… |  |
| — | duo.dev.br | no date on record | — | — | no date on record | checking… |  |
| — | duo.directory | no date on record | — | — | no date on record | checking… |  |
| — | duo.dj | no date on record | — | — | no date on record | checking… | |
| — | duo.do | no date on record | — | — | no date on record | checking… | |
| — | duo.dog | no date on record | — | — | no date on record | checking… | |
| — | duo.domains | no date on record | — | — | no date on record | checking… | |
| — | duo.eco | no date on record | — | — | no date on record | checking… |  |
| — | duo.education | no date on record | — | — | no date on record | checking… | |
| — | duo.email | no date on record | — | — | no date on record | checking… | |
| — | duo.eng.br | no date on record | — | — | no date on record | checking… |  |
| — | duo.engineering | no date on record | — | — | no date on record | checking… | |
| — | duo.es | no date on record | — | — | no date on record | checking… |  |
| — | duo.eu | no date on record | — | Webglobe, s.r.o. | no date on record | checking… | |
| — | duo.events | no date on record | — | — | no date on record | checking… | |
| — | duo.exchange | no date on record | — | — | no date on record | checking… | |
| — | duo.expert | no date on record | — | — | no date on record | checking… | |
| — | duo.farm | no date on record | — | — | no date on record | checking… | |
| — | duo.fedex | no date on record | — | — | no date on record | checking… | |
| — | duo.fitness | no date on record | — | — | no date on record | checking… | |
| — | duo.fm | no date on record | — | — | no date on record | checking… | |
| — | duo.frl | no date on record | — | — | no date on record | checking… | |
| — | duo.fun | no date on record | — | — | no date on record | checking… | |
| — | duo.game | no date on record | — | — | no date on record | checking… | |
| — | duo.gg | no date on record | — | — | no date on record | checking… | |
| — | duo.gl | no date on record | — | — | no date on record | checking… | |
| — | duo.global | no date on record | — | — | no date on record | checking… |  |
| — | duo.golf | no date on record | — | — | no date on record | checking… | |
| — | duo.gov.kg | no date on record | — | — | no date on record | checking… |  |
| — | duo.gr | no date on record | — | — | no date on record | checking… |  |
| — | duo.graphics | no date on record | — | — | no date on record | checking… | |
| — | duo.group | no date on record | — | — | no date on record | checking… | |
| — | duo.gt | no date on record | — | — | no date on record | checking… |  |
| — | duo.guru | no date on record | — | — | no date on record | checking… | |
| — | duo.gy | no date on record | — | — | no date on record | checking… | |
| — | duo.haus | no date on record | — | — | no date on record | checking… | |
| — | duo.health | no date on record | — | — | no date on record | checking… |  |
| — | duo.hk | no date on record | — | — | no date on record | checking… | |
| — | duo.hn | no date on record | — | — | no date on record | checking… | |
| — | duo.holdings | no date on record | — | — | no date on record | checking… | |
| — | duo.hr | no date on record | — | — | no date on record | checking… |  |
| — | duo.ht | no date on record | — | — | no date on record | checking… | |
| — | duo.hu | no date on record | — | — | no date on record | checking… | |
| — | duo.ia.br | no date on record | — | — | no date on record | checking… |  |
| — | duo.ie | no date on record | — | — | no date on record | checking… |  |
| — | duo.il | no date on record | — | — | no date on record | checking… | |
| — | duo.im | no date on record | Nov 2026 | — | no date on record expires Nov 2026 | checking… |  |
| — | duo.in.ua | no date on record | — | — | no date on record | checking… | |
| — | duo.ind.br | no date on record | — | — | no date on record | checking… | |
| — | duo.ink | no date on record | — | — | no date on record | checking… |  |
| — | duo.institute | no date on record | — | — | no date on record | checking… | |
| — | duo.international | no date on record | — | — | no date on record | checking… | |
| — | duo.ir | no date on record | — | — | no date on record | checking… | |
| — | duo.jobs | no date on record | — | — | no date on record | checking… | |
| — | duo.jp | no date on record | — | — | no date on record | checking… |  |
| — | duo.ke | no date on record | — | — | no date on record | checking… | |
| — | duo.kg | no date on record | — | — | no date on record | checking… |  |
| — | duo.kolobrzeg.pl | no date on record | — | — | no date on record | checking… |  |
| — | duo.kz | no date on record | — | — | no date on record | checking… |  |
| — | duo.lat | no date on record | — | — | no date on record | checking… | |
| — | duo.lc | no date on record | — | — | no date on record | checking… | |
| — | duo.li | no date on record | — | — | no date on record | checking… |  |
| — | duo.log.br | no date on record | — | — | no date on record | checking… |  |
| — | duo.lt | no date on record | — | — | no date on record | checking… | |
| — | duo.ltd | no date on record | — | — | no date on record | checking… |  |
| — | duo.lu | no date on record | — | — | no date on record | checking… | |
| — | duo.lv | no date on record | — | — | no date on record | checking… |  |
| — | duo.market | no date on record | — | — | no date on record | checking… | |
| — | duo.marketing | no date on record | — | — | no date on record | checking… | |
| — | duo.me | no date on record | — | — | no date on record | checking… |  |
| — | duo.med.br | no date on record | — | — | no date on record | checking… |  |
| — | duo.media | no date on record | — | — | no date on record | checking… |  |
| — | duo.mn | no date on record | — | — | no date on record | checking… | |
| — | duo.mo.cn | no date on record | — | — | no date on record | checking… | |
| — | duo.mobi | no date on record | — | — | no date on record | checking… | |
| — | duo.ms | no date on record | — | — | no date on record | checking… | |
| — | duo.mv | no date on record | — | — | no date on record | checking… | |
| — | duo.my | no date on record | — | — | no date on record | checking… |  |
| — | duo.ne.jp | no date on record | — | — | no date on record | checking… |  |
| — | duo.net.pl | no date on record | — | — | no date on record | checking… |  |
| — | duo.network | no date on record | — | — | no date on record | checking… | |
| — | duo.news | no date on record | — | — | no date on record | checking… | |
| — | duo.ng | no date on record | — | — | no date on record | checking… |  |
| — | duo.nieruchomosci.pl | no date on record | — | — | no date on record | checking… |  |
| — | duo.nu | no date on record | — | — | no date on record | checking… | |
| — | duo.nz | no date on record | — | — | no date on record | checking… | |
| — | duo.odo.br | no date on record | — | — | no date on record | checking… |  |
| — | duo.or.at | no date on record | — | easyname GmbH ( https://nic.a… | no date on record | checking… |  |
| — | duo.pa | no date on record | — | — | no date on record | checking… | |
| — | duo.paris | no date on record | — | — | no date on record | checking… | |
| — | duo.party | no date on record | — | — | no date on record | checking… | |
| — | duo.pe | no date on record | — | KEY ? SYSTEMS GmbH | no date on record | checking… | |
| — | duo.ph | no date on record | — | — | no date on record | checking… | |
| — | duo.pl | no date on record | — | — | no date on record | checking… |  |
| — | duo.plus | no date on record | — | — | no date on record | checking… | |
| — | duo.porn | no date on record | — | — | no date on record | checking… | |
| — | duo.pub | no date on record | — | — | no date on record | checking… | |
| — | duo.pw | no date on record | — | — | no date on record | checking… | |
| — | duo.qa | no date on record | — | — | no date on record | checking… | |
| — | duo.recipes | no date on record | — | — | no date on record | checking… | |
| — | duo.ren | no date on record | — | — | no date on record | checking… |  |
| — | duo.rent | no date on record | — | — | no date on record | checking… | |
| — | duo.rich | no date on record | — | — | no date on record | checking… |  |
| — | duo.ro | no date on record | — | — | no date on record | checking… |  |
| — | duo.rocks | no date on record | — | — | no date on record | checking… |  |
| — | duo.rs | no date on record | Jul 2026 (passed) | Gransy d.o.o. | no date on record expiry Jul 2026 (passed) | checking… |  |
| — | duo.sa | no date on record | — | — | no date on record | checking… |  |
| — | duo.sale | no date on record | — | — | no date on record | checking… | |
| — | duo.sc | no date on record | — | — | no date on record | checking… | |
| — | duo.services | no date on record | — | — | no date on record | checking… | |
| — | duo.sg | no date on record | — | — | no date on record | checking… |  |
| — | duo.site | no date on record | — | — | no date on record | checking… | |
| — | duo.sk | no date on record | — | — | no date on record | checking… | |
| — | duo.so | no date on record | — | — | no date on record | checking… | |
| — | duo.social | no date on record | — | — | no date on record | checking… |  |
| — | duo.solar | no date on record | — | — | no date on record | checking… | |
| — | duo.solutions | no date on record | — | — | no date on record | checking… | |
| — | duo.su | no date on record | — | — | no date on record | checking… | |
| — | duo.support | no date on record | — | — | no date on record | checking… |  |
| — | duo.systems | no date on record | — | — | no date on record | checking… |  |
| — | duo.tm | no date on record | — | — | no date on record | checking… |  |
| — | duo.tn | no date on record | — | — | no date on record | checking… | |
| — | duo.to | no date on record | — | — | no date on record | checking… | |
| — | duo.today | no date on record | — | — | no date on record | checking… | |
| — | duo.tokyo | no date on record | — | — | no date on record | checking… |  |
| — | duo.tr | no date on record | — | — | no date on record | checking… | |
| — | duo.training | no date on record | — | — | no date on record | checking… |  |
| — | duo.travel | no date on record | — | — | no date on record | checking… | |
| — | duo.tv | no date on record | — | — | no date on record | checking… | |
| — | duo.tw | no date on record | — | — | no date on record | checking… | |
| — | duo.ua | no date on record | — | — | no date on record | checking… | |
| — | duo.uy | no date on record | — | — | no date on record | checking… |  |
| — | duo.vin | no date on record | — | — | no date on record | checking… | |
| — | duo.vlaanderen | no date on record | — | — | no date on record | checking… | |
| — | duo.vn | no date on record | — | — | no date on record | checking… | |
| — | duo.voyage | no date on record | — | — | no date on record | checking… | |
| — | duo.wiki | no date on record | — | — | no date on record | checking… | |
| — | duo.works | no date on record | — | — | no date on record | checking… | |
| — | duo.ws | no date on record | — | — | no date on record | checking… |  |
| — | duo.yun | no date on record | — | — | no date on record | checking… | |
| — | duo.zip | no date on record | — | — | no date on record | checking… | |
| — | duo.zone | 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.