Every extension, oldest first
sisoftware
We have seen sisoftware registered in 23 extensions. The oldest is sisoftware.co.uk, registered on 13 Aug 1999; the newest, sisoftware.reviews, on 14 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 23 extensions
- Oldest
- 1999 sisoftware.co.uk
- Newest
- 2026 sisoftware.reviews
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1999 | sisoftware.co.uk | 13 Aug 1999 | Aug 2026 (passed) | Ionos SE | 13 Aug 1999 expiry Aug 2026 (passed) | checking… |  |
| 2002 | sisoftware.net | 9 Dec 2002 | Dec 2026 | IONOS SE | 9 Dec 2002 expires Dec 2026 | checking… |  |
| 2003 | sisoftware.com | 13 Jun 2003 | Jun 2026 (passed) | GoDaddy.com, LLC | 13 Jun 2003 expiry Jun 2026 (passed) | checking… | |
| 2004 | sisoftware.com.mx | 10 Sep 2004 | Sep 2027 | Telmex | 10 Sep 2004 expires Sep 2027 | checking… | |
| 2004 | sisoftware.info | 28 Oct 2004 | Oct 2026 (passed) | IONOS SE | 28 Oct 2004 expiry Oct 2026 (passed) | checking… |  |
| 2013 | sisoftware.biz | 11 Jun 2013 | Jun 2027 | Hosting Ukraine LLC. | 11 Jun 2013 expires Jun 2027 | checking… |  |
| 2019 | sisoftware.it | 16 Apr 2019 | Dec 2026 | Tucows.com Co. | 16 Apr 2019 expires Dec 2026 | checking… |  |
| 2019 | sisoftware.mx | 26 Oct 2019 | Oct 2027 | Tucows.com Co. | 26 Oct 2019 expires Oct 2027 | checking… |  |
| 2019 | sisoftware.org | 10 Dec 2019 | Dec 2026 | Hosting Concepts B.V. d/b/a R… | 10 Dec 2019 expires Dec 2026 | checking… | |
| 2022 | sisoftware.ca | 5 Dec 2022 | Dec 2027 | Go Daddy Domains Canada, Inc | 5 Dec 2022 expires Dec 2027 | checking… | |
| 2026 | sisoftware.in | 5 Feb 2026 | Feb 2027 | Spaceship, Inc. | 5 Feb 2026 expires Feb 2027 | checking… |  |
| 2026 | sisoftware.cloud | 8 Apr 2026 | Apr 2027 | GoDaddy | 8 Apr 2026 expires Apr 2027 | checking… |  |
| 2026 | sisoftware.xyz | 9 Jun 2026 | Jun 2027 | Alibaba Cloud Computing Ltd.… | 9 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | sisoftware.dev | 1 Jul 2026 | Jul 2027 | CloudFlare, Inc. | 1 Jul 2026 expires Jul 2027 | checking… |  |
| 2026 | sisoftware.ltd | 29 Sep 2026 | Sep 2027 | GoDaddy.com, LLC | 29 Sep 2026 expires Sep 2027 | checking… | |
| 2026 | sisoftware.org.uk | 29 Sep 2026 | Sep 2027 | GoDaddy.com, LLC. | 29 Sep 2026 expires Sep 2027 | checking… | |
| 2026 | sisoftware.uk | 29 Sep 2026 | Sep 2027 | GoDaddy.com, LLC. | 29 Sep 2026 expires Sep 2027 | checking… | |
| 2026 | sisoftware.reviews | 14 Oct 2026 | Oct 2027 | DYNADOT LLC | 14 Oct 2026 expires Oct 2027 | checking… | |
| — | sisoftware.co | no date on record | — | — | no date on record | checking… | |
| — | sisoftware.com.au | no date on record | — | — | no date on record | checking… |  |
| — | sisoftware.com.br | no date on record | — | — | no date on record | checking… |  |
| — | sisoftware.de | no date on record | — | — | no date on record | checking… | |
| — | sisoftware.eu | no date on record | — | IONOS SE | 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.