Every extension, oldest first
sdt
We have seen sdt registered in 185 extensions. The oldest is sdt.net, registered on 3 Oct 1995; the newest, sdt.now, on 21 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 185 extensions
- Oldest
- 1995 sdt.net
- Newest
- 2026 sdt.now
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1995 | sdt.net | 3 Oct 1995 | Oct 2026 (passed) | CPS-Datensysteme GmbH | 3 Oct 1995 expiry Oct 2026 (passed) | checking… |  |
| 1996 | sdt.se | 2 May 1996 | — | Loopia AB | 2 May 1996 | checking… |  |
| 1997 | sdt.co.za | 12 Jun 1997 | Jun 2027 | xneelo (Pty) Ltd | 12 Jun 1997 expires Jun 2027 | checking… | |
| 1999 | sdt.nl | 2 Mar 1999 | — | Jaarsma & De Boer B.V. | 2 Mar 1999 | checking… |  |
| 1999 | sdt.pt | 19 Jul 1999 | Jun 2027 | — | 19 Jul 1999 expires Jun 2027 | checking… |  |
| 1999 | sdt.org | 23 Sep 1999 | Sep 2026 (passed) | Mesh Digital Limited | 23 Sep 1999 expiry Sep 2026 (passed) | checking… |  |
| 2000 | sdt.com.tw | 22 May 2000 | Aug 2027 | TWNIC | 22 May 2000 expires Aug 2027 | checking… | |
| 2001 | sdt.co.id | 24 Jul 2001 | Sep 2026 (passed) | PT Cyberindo Aditama | 24 Jul 2001 expiry Sep 2026 (passed) | checking… | |
| 2001 | sdt.info | 17 Sep 2001 | Sep 2026 (passed) | CPS-Datensysteme GmbH | 17 Sep 2001 expiry Sep 2026 (passed) | checking… | |
| 2001 | sdt.cz | 9 Oct 2001 | — | REG-ACTIVE24 | 9 Oct 2001 | checking… | |
| 2002 | sdt.us | 24 Apr 2002 | Apr 2027 | GoDaddy.com, LLC | 24 Apr 2002 expires Apr 2027 | checking… | |
| 2003 | sdt.com | 6 Jul 2003 | Jul 2026 (passed) | Dynadot Inc | 6 Jul 2003 expiry Jul 2026 (passed) | checking… |  |
| 2005 | sdt.com.mx | 15 Mar 2005 | Mar 2027 | AKKY ONLINE SOLUTIONS, S.A. D… | 15 Mar 2005 expires Mar 2027 | checking… |  |
| 2005 | sdt.ca | 29 Mar 2005 | Mar 2027 | Namespro Solutions Inc. | 29 Mar 2005 expires Mar 2027 | checking… | |
| 2006 | sdt.com.pt | 24 Mar 2006 | Nov 2026 (passed) | — | 24 Mar 2006 expiry Nov 2026 (passed) | checking… | |
| 2006 | sdt.or.kr | 8 Sep 2006 | Sep 2027 | — | 8 Sep 2006 expires Sep 2027 | checking… | |
| 2007 | sdt.in | 9 Sep 2007 | Sep 2026 (passed) | Dynadot, LLC | 9 Sep 2007 expiry Sep 2026 (passed) | checking… |  |
| 2007 | sdt.tw | 23 Oct 2007 | Oct 2027 | HINET | 23 Oct 2007 expires Oct 2027 | checking… | |
| 2008 | sdt.si | 20 Mar 2008 | Mar 2027 | Webtasy, d.o.o. | 20 Mar 2008 expires Mar 2027 | checking… | |
| 2008 | sdt.net.tw | 18 Jul 2008 | Jul 2027 | FET/NCIC | 18 Jul 2008 expires Jul 2027 | checking… |  |
| 2008 | sdt.it | 17 Dec 2008 | — | — | 17 Dec 2008 | checking… | |
| 2009 | sdt.co.kr | 15 Nov 2009 | Nov 2026 | — | 15 Nov 2009 expires Nov 2026 | checking… | |
| 2010 | sdt.me | 16 Nov 2010 | Nov 2026 | GoDaddy.com, LLC | 16 Nov 2010 expires Nov 2026 | checking… | |
| 2011 | sdt.edu.gh | 1 Jan 2011 | Dec 2026 | Ghana Dot Com | 1 Jan 2011 expires Dec 2026 | checking… | |
| 2011 | sdt.net.in | 2 Jun 2011 | Jun 2027 | Endurance International Group… | 2 Jun 2011 expires Jun 2027 | checking… |  |
| 2011 | sdt.no | 30 Nov 2011 | — | Domeneshop AS | 30 Nov 2011 | checking… | |
| 2012 | sdt.name | 27 Nov 2012 | Nov 2026 | Synergy Wholesale Accreditati… | 27 Nov 2012 expires Nov 2026 | checking… | |
| 2013 | sdt.cc | 15 Jul 2013 | Jul 2027 | Gname.com Pte. Ltd. | 15 Jul 2013 expires Jul 2027 | checking… |  |
| 2013 | sdt.com.ar | 20 Aug 2013 | — | nicar | 20 Aug 2013 | checking… |  |
| 2014 | sdt.co.hu | 5 Sep 2014 | — | — | 5 Sep 2014 | checking… |  |
| 2015 | sdt.email | 16 Nov 2015 | Nov 2026 | GoDaddy.com, LLC | 16 Nov 2015 expires Nov 2026 | checking… | |
| 2015 | sdt.training | 16 Nov 2015 | Nov 2026 | GoDaddy.com, LLC | 16 Nov 2015 expires Nov 2026 | checking… |  |
| 2016 | sdt.ru | 2 Jun 2016 | — | REGRU-RU | 2 Jun 2016 | checking… |  |
| 2016 | sdt.ltd | 22 Jun 2016 | Jun 2026 (passed) | Alibaba Cloud Computing Ltd.… | 22 Jun 2016 expiry Jun 2026 (passed) | checking… |  |
| 2017 | sdt.group | 23 Mar 2017 | Mar 2027 | GoDaddy.com, LLC | 23 Mar 2017 expires Mar 2027 | checking… |  |
| 2017 | sdt.news | 1 May 2017 | May 2027 | eNom, LLC | 1 May 2017 expires May 2027 | checking… |  |
| 2017 | sdt.io | 30 Jul 2017 | Jul 2027 | GoDaddy.com, LLC | 30 Jul 2017 expires Jul 2027 | checking… |  |
| 2017 | sdt.media | 1 Sep 2017 | Sep 2027 | GoDaddy.com, LLC | 1 Sep 2017 expires Sep 2027 | checking… |  |
| 2017 | sdt.tech | 21 Oct 2017 | Oct 2027 | Chengdu West Dimension Digita… | 21 Oct 2017 expires Oct 2027 | checking… | |
| 2018 | sdt.dk | 15 Apr 2018 | Apr 2027 | GIGAHOST ApS | 15 Apr 2018 expires Apr 2027 | checking… |  |
| 2018 | sdt.icu | 29 May 2018 | May 2028 | Key-Systems LLC | 29 May 2018 expires May 2028 | checking… |  |
| 2019 | sdt.fyi | 19 Aug 2019 | Aug 2027 | Tucows Domains Inc. | 19 Aug 2019 expires Aug 2027 | checking… | |
| 2020 | sdt.fi | 19 Feb 2020 | — | — | 19 Feb 2020 | checking… | |
| 2020 | sdt.la | 11 Mar 2020 | Mar 2027 | LA Domain Names | 11 Mar 2020 expires Mar 2027 | checking… | |
| 2020 | sdt.vip | 26 Jul 2020 | Jul 2030 | DNSPod, Inc. | 26 Jul 2020 expires Jul 2030 | checking… | |
| 2021 | sdt.llc | 24 May 2021 | May 2027 | Squarespace Domains II LLC | 24 May 2021 expires May 2027 | checking… |  |
| 2021 | sdt.fr | 30 May 2021 | Jun 2026 (passed) | OVH | 30 May 2021 expiry Jun 2026 (passed) | checking… | |
| 2021 | sdt.in.ua | 17 Aug 2021 | Aug 2026 (passed) | "Internet Invest" Ltd | 17 Aug 2021 expiry Aug 2026 (passed) | checking… |  |
| 2021 | sdt.limo | 24 Sep 2021 | Sep 2026 (passed) | GoDaddy.com, LLC | 24 Sep 2021 expiry Sep 2026 (passed) | checking… |  |
| 2022 | sdt.legal | 15 Apr 2022 | Apr 2028 | Porkbun LLC | 15 Apr 2022 expires Apr 2028 | checking… |  |
| 2022 | sdt.ai | 8 Dec 2022 | Dec 2026 | GoDaddy.com, LLC | 8 Dec 2022 expires Dec 2026 | checking… | |
| 2023 | sdt.kr | 13 Jun 2023 | Jun 2027 | — | 13 Jun 2023 expires Jun 2027 | checking… | |
| 2023 | sdt.design | 24 Dec 2023 | Dec 2026 | Squarespace Domains II LLC | 24 Dec 2023 expires Dec 2026 | checking… | |
| 2023 | sdt.ooo | 28 Dec 2023 | Dec 2030 | Registrar of Domain Names REG… | 28 Dec 2023 expires Dec 2030 | checking… |  |
| 2023 | sdt.uz | 29 Dec 2023 | Dec 2026 | ООО «NEW LINE SOLUTIONS» | 29 Dec 2023 expires Dec 2026 | checking… |  |
| 2024 | sdt.com.ua | 8 Feb 2024 | Feb 2027 | Hosting Ukraine LLC | 8 Feb 2024 expires Feb 2027 | checking… |  |
| 2024 | sdt.co.in | 30 May 2024 | May 2027 | GoDaddy | 30 May 2024 expires May 2027 | checking… |  |
| 2024 | sdt.app | 14 Jul 2024 | Jul 2027 | Global Domains International,… | 14 Jul 2024 expires Jul 2027 | checking… | |
| 2024 | sdt.co.jp | 9 Sep 2024 | Sep 2027 | — | 9 Sep 2024 expires Sep 2027 | checking… |  |
| 2025 | sdt.network | 20 Jun 2025 | Jun 2026 (passed) | Cloudflare, Inc | 20 Jun 2025 expiry Jun 2026 (passed) | checking… |  |
| 2025 | sdt.com.sd | 24 Jun 2025 | Jun 2026 (passed) | sdnic registrar | 24 Jun 2025 expiry Jun 2026 (passed) | checking… |  |
| 2025 | sdt.xyz | 18 Aug 2025 | Aug 2027 | Go Daddy, LLC | 18 Aug 2025 expires Aug 2027 | checking… | |
| 2025 | sdt.baby | 19 Aug 2025 | Aug 2026 (passed) | Dynadot LLC | 19 Aug 2025 expiry Aug 2026 (passed) | checking… |  |
| 2025 | sdt.agency | 14 Sep 2025 | Sep 2026 (passed) | Sav.com, LLC - 2 | 14 Sep 2025 expiry Sep 2026 (passed) | checking… |  |
| 2025 | sdt.rest | 27 Sep 2025 | Sep 2026 (passed) | NAMECHEAP | 27 Sep 2025 expiry Sep 2026 (passed) | checking… |  |
| 2025 | sdt.digital | 1 Oct 2025 | Oct 2027 | IONOS SE | 1 Oct 2025 expires Oct 2027 | checking… |  |
| 2025 | sdt.asia | 31 Oct 2025 | Oct 2027 | GoDaddy.com, LLC | 31 Oct 2025 expires Oct 2027 | checking… |  |
| 2025 | sdt.company | 3 Nov 2025 | Nov 2026 (passed) | Sav.com, LLC | 3 Nov 2025 expiry Nov 2026 (passed) | checking… |  |
| 2025 | sdt.autos | 20 Nov 2025 | Nov 2026 | Dynadot LLC | 20 Nov 2025 expires Nov 2026 | checking… | |
| 2026 | sdt.africa | 8 Jan 2026 | Jan 2027 | OpenSRS | 8 Jan 2026 expires Jan 2027 | checking… |  |
| 2026 | sdt.co.ke | 8 Jan 2026 | Jan 2027 | CUS | 8 Jan 2026 expires Jan 2027 | checking… |  |
| 2026 | sdt.one | 9 Jan 2026 | Jan 2027 | Spaceship, Inc. | 9 Jan 2026 expires Jan 2027 | checking… |  |
| 2026 | sdt.org.ua | 23 Jan 2026 | Jan 2027 | Hosting Ukraine LLC | 23 Jan 2026 expires Jan 2027 | checking… |  |
| 2026 | sdt.beauty | 8 Feb 2026 | Feb 2027 | CHENGDU WEST DIMENSION DIGITA… | 8 Feb 2026 expires Feb 2027 | checking… | |
| 2026 | sdt.com.pl | 1 Mar 2026 | — | — | 1 Mar 2026 | checking… | |
| 2026 | sdt.lol | 7 Apr 2026 | Apr 2027 | Global Domain Group LLC | 7 Apr 2026 expires Apr 2027 | checking… |  |
| 2026 | sdt.world | 16 Apr 2026 | Apr 2027 | Spaceship, Inc. | 16 Apr 2026 expires Apr 2027 | checking… |  |
| 2026 | sdt.my.id | 7 May 2026 | May 2027 | PT Digital Registra Indonesia | 7 May 2026 expires May 2027 | checking… |  |
| 2026 | sdt.tools | 23 May 2026 | May 2027 | Cloudflare, Inc | 23 May 2026 expires May 2027 | checking… | |
| 2026 | sdt.technology | 4 Jun 2026 | Jun 2031 | Squarespace Domains II LLC | 4 Jun 2026 expires Jun 2031 | checking… |  |
| 2026 | sdt.casino | 28 Jun 2026 | Jun 2027 | Spaceship, Inc. | 28 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | sdt.mom | 11 Aug 2026 | Aug 2027 | DYNADOT LLC | 11 Aug 2026 expires Aug 2027 | checking… | |
| 2026 | sdt.pics | 11 Aug 2026 | Aug 2027 | DYNADOT LLC | 11 Aug 2026 expires Aug 2027 | checking… | |
| 2026 | sdt.capital | 18 Aug 2026 | Aug 2029 | Cloudflare, Inc | 18 Aug 2026 expires Aug 2029 | checking… |  |
| 2026 | sdt.now | 21 Oct 2026 | Oct 2027 | Porkbun LLC | 21 Oct 2026 expires Oct 2027 | checking… |  |
| — | sdt.ac | no date on record | — | — | no date on record | checking… | |
| — | sdt.ac.uk | no date on record | — | — | no date on record | checking… | |
| — | sdt.academy | no date on record | — | — | no date on record | checking… | |
| — | sdt.ae | no date on record | — | — | no date on record | checking… |  |
| — | sdt.ai.vn | no date on record | — | — | no date on record | checking… |  |
| — | sdt.app.br | no date on record | — | — | no date on record | checking… | |
| — | sdt.ar | no date on record | — | — | no date on record | checking… |  |
| — | sdt.at | no date on record | — | — | no date on record | checking… |  |
| — | sdt.au | no date on record | — | — | no date on record | checking… | |
| — | sdt.bd | no date on record | — | — | no date on record | checking… |  |
| — | sdt.be | no date on record | — | — | no date on record | checking… |  |
| — | sdt.bg | no date on record | — | — | no date on record | checking… | |
| — | sdt.box | no date on record | — | — | no date on record | checking… |  |
| — | sdt.br | no date on record | — | — | no date on record | checking… | |
| — | sdt.by | no date on record | — | — | no date on record | checking… |  |
| — | sdt.bz | no date on record | — | — | no date on record | checking… | |
| — | sdt.care | no date on record | — | — | no date on record | checking… |  |
| — | sdt.ch | no date on record | — | — | no date on record | checking… | |
| — | sdt.chat | no date on record | — | — | no date on record | checking… | |
| — | sdt.cl | no date on record | — | — | no date on record | checking… | |
| — | sdt.cn | no date on record | — | — | no date on record | checking… | |
| — | sdt.co | no date on record | — | — | no date on record | checking… | |
| — | sdt.co.at | no date on record | — | — | no date on record | checking… |  |
| — | sdt.co.il | no date on record | — | — | no date on record | checking… | |
| — | sdt.co.ir | no date on record | — | — | no date on record | checking… |  |
| — | sdt.co.nz | no date on record | — | — | no date on record | checking… | |
| — | sdt.co.tz | no date on record | — | — | no date on record | checking… | |
| — | sdt.co.uk | no date on record | — | — | no date on record | checking… |  |
| — | sdt.com.au | no date on record | — | Melbourne IT | no date on record | checking… |  |
| — | sdt.com.bd | no date on record | — | — | no date on record | checking… | |
| — | sdt.com.br | no date on record | — | — | no date on record | checking… | |
| — | sdt.com.cn | no date on record | — | 阿里云计算有限公司（万网） | no date on record | checking… | |
| — | sdt.com.pa | no date on record | — | — | no date on record | checking… |  |
| — | sdt.com.tr | no date on record | — | — | no date on record | checking… | |
| — | sdt.com.vn | no date on record | — | — | no date on record | checking… |  |
| — | sdt.dance | no date on record | — | — | no date on record | checking… | |
| — | sdt.de | no date on record | — | — | no date on record | checking… | |
| — | sdt.dog | no date on record | — | — | no date on record | checking… | |
| — | sdt.edu.mx | no date on record | May 2027 | AKKY ONLINE SOLUTIONS, S.A. D… | no date on record expires May 2027 | checking… |  |
| — | sdt.education | no date on record | — | — | no date on record | checking… |  |
| — | sdt.ee | no date on record | — | — | no date on record | checking… |  |
| — | sdt.es | no date on record | — | — | no date on record | checking… | |
| — | sdt.eu | no date on record | — | Nuxit | no date on record | checking… |  |
| — | sdt.events | no date on record | — | — | no date on record | checking… |  |
| — | sdt.expert | no date on record | — | — | no date on record | checking… | |
| — | sdt.fit | no date on record | — | — | no date on record | checking… |  |
| — | sdt.fitness | no date on record | — | — | no date on record | checking… | |
| — | sdt.fm | no date on record | — | — | no date on record | checking… | |
| — | sdt.global | no date on record | — | — | no date on record | checking… |  |
| — | sdt.gt | no date on record | — | — | no date on record | checking… | |
| — | sdt.help | no date on record | — | — | no date on record | checking… |  |
| — | sdt.hk | no date on record | — | — | no date on record | checking… | |
| — | sdt.hu | no date on record | — | — | no date on record | checking… |  |
| — | sdt.ie | no date on record | — | — | no date on record | checking… | |
| — | sdt.il | no date on record | — | — | no date on record | checking… | |
| — | sdt.im | no date on record | Jul 2027 | — | no date on record expires Jul 2027 | checking… | |
| — | sdt.inc | no date on record | — | — | no date on record | checking… |  |
| — | sdt.institute | no date on record | — | — | no date on record | checking… | |
| — | sdt.international | no date on record | — | — | no date on record | checking… | |
| — | sdt.jp | no date on record | — | — | no date on record | checking… | |
| — | sdt.li | no date on record | — | — | no date on record | checking… | |
| — | sdt.life | no date on record | — | — | no date on record | checking… |  |
| — | sdt.lt | no date on record | — | — | no date on record | checking… | |
| — | sdt.market | no date on record | — | — | no date on record | checking… | |
| — | sdt.moscow | no date on record | — | — | no date on record | checking… | |
| — | sdt.mx | no date on record | — | — | no date on record | checking… | |
| — | sdt.net.bd | no date on record | — | — | no date on record | checking… |  |
| — | sdt.ngo | no date on record | — | — | no date on record | checking… | |
| — | sdt.nu | no date on record | — | — | no date on record | checking… | |
| — | sdt.nz | no date on record | — | — | no date on record | checking… |  |
| — | sdt.onl | no date on record | — | — | no date on record | checking… | |
| — | sdt.pf | no date on record | — | — | no date on record | checking… | |
| — | sdt.ph | no date on record | — | — | no date on record | checking… | |
| — | sdt.pl | no date on record | — | — | no date on record | checking… |  |
| — | sdt.qa | no date on record | — | — | no date on record | checking… |  |
| — | sdt.red | no date on record | — | — | no date on record | checking… | |
| — | sdt.ro | no date on record | — | — | no date on record | checking… |  |
| — | sdt.sc | no date on record | — | — | no date on record | checking… | |
| — | sdt.sd | no date on record | — | — | no date on record | checking… |  |
| — | sdt.services | no date on record | — | — | no date on record | checking… |  |
| — | sdt.sg | no date on record | — | — | no date on record | checking… | |
| — | sdt.show | no date on record | — | — | no date on record | checking… | |
| — | sdt.sk | no date on record | — | — | no date on record | checking… |  |
| — | sdt.sn | no date on record | — | OVH | no date on record | checking… | |
| — | sdt.software | no date on record | — | — | no date on record | checking… | |
| — | sdt.su | no date on record | — | — | no date on record | checking… | |
| — | sdt.support | no date on record | — | — | no date on record | checking… |  |
| — | sdt.sy | no date on record | — | — | no date on record | checking… |  |
| — | sdt.tm | no date on record | — | — | no date on record | checking… |  |
| — | sdt.tn | no date on record | — | — | no date on record | checking… | |
| — | sdt.tokyo | no date on record | — | — | no date on record | checking… | |
| — | sdt.tr | no date on record | — | — | no date on record | checking… | |
| — | sdt.travel | no date on record | — | — | no date on record | checking… |  |
| — | sdt.tv | no date on record | — | — | no date on record | checking… | |
| — | sdt.ua | no date on record | — | — | no date on record | checking… | |
| — | sdt.uk | no date on record | Jun 2027 | — | no date on record expires Jun 2027 | checking… |  |
| — | sdt.uy | no date on record | — | — | no date on record | checking… |  |
| — | sdt.vn | no date on record | — | — | no date on record | checking… |  |
| — | sdt.wiki | no date on record | — | — | no date on record | checking… | |
| — | sdt.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.