Every extension, oldest first
kosei
We have seen kosei registered in 60 extensions. The oldest is kosei.co.jp, registered on 6 Mar 1997; the newest, kosei.ge, on 28 Sep 2026.
Checking which of them answer in DNS today…
- Seen in
- 60 extensions
- Oldest
- 1997 kosei.co.jp
- Newest
- 2026 kosei.ge
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1997 | kosei.co.jp | 6 Mar 1997 | Mar 2027 | — | 6 Mar 1997 expires Mar 2027 | checking… | |
| 1999 | kosei.com | 5 Apr 1999 | Apr 2027 | GMO Internet Group, Inc. d/b/… | 5 Apr 1999 expires Apr 2027 | checking… |  |
| 1999 | kosei.ac.jp | 10 May 1999 | May 2027 | — | 10 May 1999 expires May 2027 | checking… |  |
| 2000 | kosei.co.th | 24 Jul 2000 | Jul 2027 | T.H.NIC Co., Ltd. | 24 Jul 2000 expires Jul 2027 | checking… | |
| 2002 | kosei.jp | 31 Oct 2002 | Oct 2026 (passed) | — | 31 Oct 2002 expiry Oct 2026 (passed) | checking… | |
| 2005 | kosei.org | 16 May 2005 | May 2027 | GMO Internet Group, Inc. d/b/… | 16 May 2005 expires May 2027 | checking… | |
| 2012 | kosei.net | 5 May 2012 | May 2027 | TurnCommerce, Inc. DBA NameBr… | 5 May 2012 expires May 2027 | checking… |  |
| 2014 | kosei.info | 24 Apr 2014 | Apr 2027 | GMO Internet Group, Inc. d/b/… | 24 Apr 2014 expires Apr 2027 | checking… | |
| 2016 | kosei.life | 20 Jul 2016 | Jul 2027 | GMO Internet Group, Inc. d/b/… | 20 Jul 2016 expires Jul 2027 | checking… |  |
| 2018 | kosei.ltd | 17 Jan 2018 | Jan 2029 | GMO Internet Group, Inc. d/b/… | 17 Jan 2018 expires Jan 2029 | checking… |  |
| 2020 | kosei.work | 18 Apr 2020 | Apr 2027 | GMO Internet, Inc. d/b/a Onam… | 18 Apr 2020 expires Apr 2027 | checking… |  |
| 2021 | kosei.mx | 8 Apr 2021 | Apr 2027 | Tecnocratica Centro de Datos,… | 8 Apr 2021 expires Apr 2027 | checking… | |
| 2021 | kosei.me | 13 Nov 2021 | Nov 2026 | Cloudflare, Inc. | 13 Nov 2021 expires Nov 2026 | checking… | |
| 2022 | kosei.live | 3 Mar 2022 | Mar 2027 | NameCheap, Inc. | 3 Mar 2022 expires Mar 2027 | checking… |  |
| 2022 | kosei.com.mx | 4 Apr 2022 | Apr 2027 | GoDaddy.com | 4 Apr 2022 expires Apr 2027 | checking… | |
| 2022 | kosei.or.jp | 25 Apr 2022 | Apr 2027 | — | 25 Apr 2022 expires Apr 2027 | checking… |  |
| 2022 | kosei.cloud | 13 Jun 2022 | Jun 2026 (passed) | GMO Internet, Inc. d/b/a Onam… | 13 Jun 2022 expiry Jun 2026 (passed) | checking… |  |
| 2022 | kosei.tech | 13 Jun 2022 | Jun 2026 (passed) | GMO Internet, Inc. | 13 Jun 2022 expiry Jun 2026 (passed) | checking… |  |
| 2022 | kosei.com.cn | 2 Dec 2022 | Dec 2026 | 阿里云计算有限公司（万网） | 2 Dec 2022 expires Dec 2026 | checking… | |
| 2024 | kosei.site | 5 Feb 2024 | Feb 2027 | GMO Internet Group, Inc. d/b/… | 5 Feb 2024 expires Feb 2027 | checking… | |
| 2024 | kosei.ai | 14 Feb 2024 | Feb 2028 | NAMECHEAP INC | 14 Feb 2024 expires Feb 2028 | checking… | |
| 2024 | kosei.online | 4 Mar 2024 | Mar 2027 | XServer, Inc. | 4 Mar 2024 expires Mar 2027 | checking… | |
| 2024 | kosei.it | 25 Apr 2024 | Apr 2027 | Aruba s.p.a. | 25 Apr 2024 expires Apr 2027 | checking… |  |
| 2024 | kosei.emailpending delete on 1 Nov 2026 | 16 Aug 2024 | Aug 2026 (passed) | GMO Internet Group, Inc. d/b/… | 16 Aug 2024 expiry Aug 2026 (passed) | checking… | |
| 2024 | kosei.nagoya | 19 Oct 2024 | Oct 2026 (passed) | GMO Internet Group, Inc. | 19 Oct 2024 expiry Oct 2026 (passed) | checking… |  |
| 2025 | kosei.co | 24 Mar 2025 | Mar 2027 | GoDaddy.com, LLC | 24 Mar 2025 expires Mar 2027 | checking… |  |
| 2025 | kosei.dk | 31 Mar 2025 | Mar 2027 | GIGAHOST ApS | 31 Mar 2025 expires Mar 2027 | checking… |  |
| 2025 | kosei.org.ua | 4 Sep 2025 | Sep 2026 (passed) | PE Ukrainian Hosting | 4 Sep 2025 expiry Sep 2026 (passed) | checking… |  |
| 2025 | kosei.io | 24 Nov 2025 | Nov 2026 | GoDaddy.com, LLC | 24 Nov 2025 expires Nov 2026 | checking… |  |
| 2026 | kosei.in | 12 Feb 2026 | Feb 2027 | Costrar EOOD | 12 Feb 2026 expires Feb 2027 | checking… |  |
| 2026 | kosei.dev | 24 Mar 2026 | Mar 2027 | CloudFlare, Inc. | 24 Mar 2026 expires Mar 2027 | checking… | |
| 2026 | kosei.tw | 20 Apr 2026 | Apr 2027 | Dynadot LLC | 20 Apr 2026 expires Apr 2027 | checking… | |
| 2026 | kosei.lol | 26 Apr 2026 | Apr 2027 | NameCheap, Inc. | 26 Apr 2026 expires Apr 2027 | checking… |  |
| 2026 | kosei.app | 27 Apr 2026 | Apr 2027 | Porkbun LLC | 27 Apr 2026 expires Apr 2027 | checking… |  |
| 2026 | kosei.us | 6 Jun 2026 | Jun 2027 | Spaceship, Inc. | 6 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | kosei.store | 14 Jun 2026 | Jun 2027 | Key-Systems LLC | 14 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | kosei.works | 24 Jun 2026 | Jun 2027 | XServer, Inc. | 24 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | kosei.com.ve | 5 Aug 2026 | — | NIC-VE | 5 Aug 2026 | checking… |  |
| 2026 | kosei.ge | 28 Sep 2026 | Sep 2028 | namespace.ge | 28 Sep 2026 expires Sep 2028 | checking… |  |
| — | kosei.anjo.aichi.jp | no date on record | — | — | no date on record | checking… | |
| — | kosei.biz | no date on record | — | — | no date on record | checking… | |
| — | kosei.bz | no date on record | — | — | no date on record | checking… | |
| — | kosei.cn | no date on record | — | — | no date on record | checking… | |
| — | kosei.co.uk | no date on record | — | — | no date on record | checking… |  |
| — | kosei.com.hk | no date on record | — | — | no date on record | checking… | |
| — | kosei.com.vn | no date on record | — | — | no date on record | checking… |  |
| — | kosei.de | no date on record | — | — | no date on record | checking… |  |
| — | kosei.earth | no date on record | — | — | no date on record | checking… |  |
| — | kosei.edu.vn | no date on record | — | — | no date on record | checking… |  |
| — | kosei.ee | no date on record | — | — | no date on record | checking… | |
| — | kosei.es | no date on record | — | — | no date on record | checking… |  |
| — | kosei.eu | no date on record | — | Vimexx | no date on record | checking… |  |
| — | kosei.llc | no date on record | — | — | no date on record | checking… | |
| — | kosei.ne.jp | no date on record | — | — | no date on record | checking… | |
| — | kosei.okinawa | no date on record | — | — | no date on record | checking… |  |
| — | kosei.pl | no date on record | — | — | no date on record | checking… | |
| — | kosei.red | no date on record | — | — | no date on record | checking… | |
| — | kosei.tokyo | no date on record | — | — | no date on record | checking… |  |
| — | kosei.tv | no date on record | — | — | no date on record | checking… | |
| — | kosei.vn | 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.