Every extension, oldest first
system4u
We have seen system4u registered in 19 extensions. The oldest is system4u.co.kr, registered on 3 Aug 2000; the newest, system4u.org, on 25 Apr 2026.
Checking which of them answer in DNS today…
- Seen in
- 19 extensions
- Oldest
- 2000 system4u.co.kr
- Newest
- 2026 system4u.org
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 2000 | system4u.co.kr | 3 Aug 2000 | Aug 2027 | — | 3 Aug 2000 expires Aug 2027 | checking… | |
| 2002 | system4u.com | 30 Apr 2002 | Apr 2026 (passed) | Gransy, s.r.o. | 30 Apr 2002 expiry Apr 2026 (passed) | checking… |  |
| 2004 | system4u.cz | 17 Sep 2004 | Sep 2026 (passed) | REG-WEBGLOBE | 17 Sep 2004 expiry Sep 2026 (passed) | checking… |  |
| 2008 | system4u.biz | 9 Dec 2008 | Dec 2026 | Gransy, s.r.o. | 9 Dec 2008 expires Dec 2026 | checking… |  |
| 2012 | system4u.co | 21 Apr 2012 | Apr 2026 (passed) | Key-Systems GmbH | 21 Apr 2012 expiry Apr 2026 (passed) | checking… |  |
| 2012 | system4u.mobi | 21 Apr 2012 | Apr 2027 | Gransy, s.r.o. | 21 Apr 2012 expires Apr 2027 | checking… | |
| 2013 | system4u.in | 26 Nov 2013 | Nov 2026 | InterNetworX Ltd. & Co. KG | 26 Nov 2013 expires Nov 2026 | checking… |  |
| 2025 | system4u.com.br | 5 Mar 2025 | Mar 2027 | — | 5 Mar 2025 expires Mar 2027 | checking… |  |
| 2025 | system4u.net | 16 Mar 2025 | Mar 2027 | Internet Domain Service BS Co… | 16 Mar 2025 expires Mar 2027 | checking… | |
| 2025 | system4u.co.uk | 12 Nov 2025 | Nov 2026 | Cloudflare, Inc. | 12 Nov 2025 expires Nov 2026 | checking… |  |
| 2025 | system4u.uk | 12 Nov 2025 | Nov 2027 | Cloudflare, Inc. | 12 Nov 2025 expires Nov 2027 | checking… | |
| 2026 | system4u.org | 25 Apr 2026 | Apr 2027 | Atak Domain Bilgi Teknolojile… | 25 Apr 2026 expires Apr 2027 | checking… | |
| — | system4u.cn | no date on record | — | — | no date on record | checking… |  |
| — | system4u.co.nz | no date on record | — | — | no date on record | checking… |  |
| — | system4u.de | no date on record | — | — | no date on record | checking… | |
| — | system4u.eu | no date on record | — | Webglobe, s.r.o. | no date on record | checking… |  |
| — | system4u.info | no date on record | — | — | no date on record | checking… |  |
| — | system4u.pl | no date on record | — | — | no date on record | checking… |  |
| — | system4u.sk | 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.