Every extension, oldest first
cios
We have seen cios registered in 81 extensions. The oldest is cios.nl, registered on 20 Jul 1998; the newest, cios.studio, on 20 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 81 extensions
- Oldest
- 1998 cios.nl
- Newest
- 2026 cios.studio
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1998 | cios.nl | 20 Jul 1998 | — | Quality Service Provider B.V. | 20 Jul 1998 | checking… |  |
| 2001 | cios.cz | 10 Aug 2001 | Oct 2026 (passed) | REG-WEB4U | 10 Aug 2001 expiry Oct 2026 (passed) | checking… | |
| 2002 | cios.net | 15 Jan 2002 | Jan 2027 | Dynadot Inc | 15 Jan 2002 expires Jan 2027 | checking… | |
| 2002 | cios.org | 19 Oct 2002 | Jan 2028 | NETWORK SOLUTIONS, LLC. | 19 Oct 2002 expires Jan 2028 | checking… |  |
| 2003 | cios.com.br | 3 Sep 2003 | Sep 2027 | — | 3 Sep 2003 expires Sep 2027 | checking… |  |
| 2004 | cios.com | 5 May 2004 | May 2026 (passed) | whois.wix.com | 5 May 2004 expiry May 2026 (passed) | checking… | |
| 2007 | cios.be | 18 Jan 2007 | — | CSC Corporate Domains, Inc. | 18 Jan 2007 | checking… | |
| 2008 | cios.kr | 3 Nov 2008 | Nov 2027 | — | 3 Nov 2008 expires Nov 2027 | checking… |  |
| 2011 | cios.it | 12 Apr 2011 | Apr 2027 | Aruba s.p.a. | 12 Apr 2011 expires Apr 2027 | checking… |  |
| 2012 | cios.cn | 9 Jun 2012 | Jun 2027 | 阿里云计算有限公司（万网） | 9 Jun 2012 expires Jun 2027 | checking… | |
| 2013 | cios.me | 6 Jun 2013 | Jun 2027 | GoDaddy.com, LLC | 6 Jun 2013 expires Jun 2027 | checking… |  |
| 2014 | cios.co.uk | 31 Mar 2014 | Mar 2027 | Mark Adams t/a 3DWeb.co.uk | 31 Mar 2014 expires Mar 2027 | checking… |  |
| 2016 | cios.org.in | 2 Feb 2016 | Feb 2027 | GoDaddy | 2 Feb 2016 expires Feb 2027 | checking… |  |
| 2016 | cios.fr | 10 Dec 2016 | Dec 2026 | XNS Registrar B.V. | 10 Dec 2016 expires Dec 2026 | checking… | |
| 2018 | cios.cloud | 11 Oct 2018 | Oct 2026 (passed) | Key-Systems, LLC | 11 Oct 2018 expiry Oct 2026 (passed) | checking… |  |
| 2019 | cios.dev | 3 Apr 2019 | Apr 2027 | GMO Internet Group, Inc. d/b/… | 3 Apr 2019 expires Apr 2027 | checking… | |
| 2020 | cios.com.mx | 1 Jul 2020 | Jul 2027 | GoDaddy.com | 1 Jul 2020 expires Jul 2027 | checking… |  |
| 2021 | cios.com.cn | 3 Mar 2021 | Mar 2027 | 浙江贰贰网络有限公司 | 3 Mar 2021 expires Mar 2027 | checking… | |
| 2021 | cios.tech | 23 Apr 2021 | Apr 2027 | PDR Ltd. d/b/a PublicDomainRe… | 23 Apr 2021 expires Apr 2027 | checking… |  |
| 2022 | cios.com.ar | 22 Dec 2022 | — | nicar | 22 Dec 2022 | checking… | |
| 2023 | cios.ventures | 1 Mar 2023 | Mar 2028 | GoDaddy.com, LLC | 1 Mar 2023 expires Mar 2028 | checking… |  |
| 2023 | cios.ai | 10 Nov 2023 | Nov 2027 | Porkbun LLC | 10 Nov 2023 expires Nov 2027 | checking… |  |
| 2024 | cios.in | 22 Nov 2024 | Nov 2027 | GoDaddy | 22 Nov 2024 expires Nov 2027 | checking… |  |
| 2025 | cios.mx | 11 Mar 2025 | Mar 2027 | AKKY ONLINE SOLUTIONS, S.A. D… | 11 Mar 2025 expires Mar 2027 | checking… |  |
| 2025 | cios.app | 20 Mar 2025 | Mar 2027 | GoDaddy.com, LLC | 20 Mar 2025 expires Mar 2027 | checking… |  |
| 2025 | cios.cc | 22 Mar 2025 | Mar 2028 | Chengdu West Dimension Digita… | 22 Mar 2025 expires Mar 2028 | checking… |  |
| 2025 | cios.online | 8 Apr 2025 | Apr 2027 | Dattatec Corp | 8 Apr 2025 expires Apr 2027 | checking… |  |
| 2025 | cios.ltd | 15 May 2025 | May 2027 | GoDaddy.com, LLC | 15 May 2025 expires May 2027 | checking… |  |
| 2025 | cios.shop | 26 Jul 2025 | Jul 2026 (passed) | Namecheap, Inc. | 26 Jul 2025 expiry Jul 2026 (passed) | checking… | |
| 2025 | cios.site | 28 Jul 2025 | Jul 2026 (passed) | NameCheap, Inc. | 28 Jul 2025 expiry Jul 2026 (passed) | checking… | |
| 2025 | cios.xyz | 12 Aug 2025 | Aug 2026 (passed) | Spaceship, Inc. | 12 Aug 2025 expiry Aug 2026 (passed) | checking… | |
| 2025 | cios.co.in | 24 Sep 2025 | Sep 2026 (passed) | GoDaddy | 24 Sep 2025 expiry Sep 2026 (passed) | checking… |  |
| 2025 | cios.life | 17 Oct 2025 | Oct 2026 (passed) | Alibaba Cloud Computing Ltd.… | 17 Oct 2025 expiry Oct 2026 (passed) | checking… |  |
| 2026 | cios.uk | 14 Feb 2026 | Feb 2027 | Cloudflare, Inc. | 14 Feb 2026 expires Feb 2027 | checking… |  |
| 2026 | cios.us | 15 Feb 2026 | Feb 2027 | GoDaddy.com, LLC | 15 Feb 2026 expires Feb 2027 | checking… |  |
| 2026 | cios.live | 1 Jun 2026 | Jun 2027 | GoDaddy.com, LLC | 1 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | cios.sale | 18 Jun 2026 | Jun 2027 | NameCheap, Inc. | 18 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | cios.lol | 19 Jun 2026 | Jun 2027 | NICENIC INTERNATIONAL GROUP C… | 19 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | cios.one | 12 Jul 2026 | Jul 2027 | Ascio Technologies, Inc. Danm… | 12 Jul 2026 expires Jul 2027 | checking… |  |
| 2026 | cios.se | 12 Jul 2026 | — | Loopia AB | 12 Jul 2026 | checking… | |
| 2026 | cios.space | 17 Aug 2026 | Aug 2027 | Spaceship, Inc. | 17 Aug 2026 expires Aug 2027 | checking… | |
| 2026 | cios.world | 17 Aug 2026 | Aug 2027 | Spaceship, Inc. | 17 Aug 2026 expires Aug 2027 | checking… | |
| 2026 | cios.store | 20 Sep 2026 | Sep 2027 | GoDaddy.com, LLC | 20 Sep 2026 expires Sep 2027 | checking… | |
| 2026 | cios.si | 14 Oct 2026 | Oct 2027 | Spaceship, Inc. | 14 Oct 2026 expires Oct 2027 | checking… |  |
| 2026 | cios.studio | 20 Oct 2026 | Oct 2027 | OVH, SAS | 20 Oct 2026 expires Oct 2027 | checking… |  |
| — | cios.africa | no date on record | — | — | no date on record | checking… |  |
| — | cios.at | no date on record | — | — | no date on record | checking… |  |
| — | cios.cat | no date on record | — | — | no date on record | checking… |  |
| — | cios.ch | no date on record | — | — | no date on record | checking… |  |
| — | cios.chat | no date on record | — | — | no date on record | checking… |  |
| — | cios.club | no date on record | — | — | no date on record | checking… |  |
| — | cios.co | no date on record | — | — | no date on record | checking… | |
| — | cios.com.au | no date on record | — | — | no date on record | checking… |  |
| — | cios.com.co | no date on record | — | — | no date on record | checking… | |
| — | cios.com.ph | no date on record | — | — | no date on record | checking… | |
| — | cios.community | no date on record | — | — | no date on record | checking… |  |
| — | cios.de | no date on record | — | — | no date on record | checking… | |
| — | cios.es | no date on record | — | — | no date on record | checking… |  |
| — | cios.eu | no date on record | — | — | no date on record | checking… |  |
| — | cios.fi | no date on record | — | — | no date on record | checking… | |
| — | cios.homes | no date on record | — | — | no date on record | checking… |  |
| — | cios.hr | no date on record | — | — | no date on record | checking… |  |
| — | cios.jp | no date on record | — | — | no date on record | checking… |  |
| — | cios.la | no date on record | — | — | no date on record | checking… | |
| — | cios.net.au | no date on record | — | — | no date on record | checking… |  |
| — | cios.net.ua | no date on record | — | — | no date on record | checking… |  |
| — | cios.network | no date on record | — | — | no date on record | checking… |  |
| — | cios.nz | no date on record | — | — | no date on record | checking… |  |
| — | cios.org.je | no date on record | — | — | no date on record | checking… | |
| — | cios.pl | no date on record | — | — | no date on record | checking… | |
| — | cios.pro | no date on record | — | — | no date on record | checking… | |
| — | cios.red | no date on record | — | — | no date on record | checking… | |
| — | cios.ro | no date on record | — | — | no date on record | checking… |  |
| — | cios.sh | no date on record | — | — | no date on record | checking… |  |
| — | cios.so | no date on record | — | — | no date on record | checking… | |
| — | cios.solutions | no date on record | — | — | no date on record | checking… | |
| — | cios.technology | no date on record | — | — | no date on record | checking… | |
| — | cios.top | no date on record | — | — | no date on record | checking… |  |
| — | cios.tv | no date on record | — | — | no date on record | checking… | |
| — | cios.vn | no date on record | — | — | no date on record | checking… | |
| — | cios.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.