Every extension, oldest first
sier
We have seen sier registered in 77 extensions. The oldest is sier.nl, registered on 10 Dec 1998; the newest, sier.digital, on 15 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 77 extensions
- Oldest
- 1998 sier.nl
- Newest
- 2026 sier.digital
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1998 | sier.nl | 10 Dec 1998 | — | Realtime Register | 10 Dec 1998 | checking… |  |
| 2000 | sier.com | 19 Feb 2000 | Feb 2028 | eNom, LLC | 19 Feb 2000 expires Feb 2028 | checking… |  |
| 2005 | sier.it | 13 Jun 2005 | Nov 2026 (passed) | Aruba Business s.r.l. | 13 Jun 2005 expiry Nov 2026 (passed) | checking… | |
| 2005 | sier.co.jp | 21 Jul 2005 | Jul 2027 | — | 21 Jul 2005 expires Jul 2027 | checking… |  |
| 2012 | sier.me | 8 Apr 2012 | Apr 2029 | GoDaddy.com, LLC | 8 Apr 2012 expires Apr 2029 | checking… |  |
| 2012 | sier.in | 16 Apr 2012 | Apr 2027 | ENOM, INC. | 16 Apr 2012 expires Apr 2027 | checking… |  |
| 2012 | sier.org | 16 Jun 2012 | Jun 2027 | Azdomainz, LLC | 16 Jun 2012 expires Jun 2027 | checking… |  |
| 2013 | sier.pt | 3 Feb 2013 | Feb 2028 | — | 3 Feb 2013 expires Feb 2028 | checking… |  |
| 2013 | sier.org.tw | 21 Mar 2013 | Mar 2027 | WebCC Ltd. | 21 Mar 2013 expires Mar 2027 | checking… |  |
| 2013 | sier.com.ar | 21 Oct 2013 | Aug 2026 (passed) | nicar | 21 Oct 2013 expiry Aug 2026 (passed) | checking… |  |
| 2015 | sier.com.cn | 1 Jul 2015 | Jul 2027 | 阿里云计算有限公司（万网） | 1 Jul 2015 expires Jul 2027 | checking… | |
| 2015 | sier.no | 3 Jul 2015 | — | MEDIA24 AS | 3 Jul 2015 | checking… | |
| 2016 | sier.online | 3 May 2016 | May 2026 (passed) | Hosting Concepts B.V. d/b/a R… | 3 May 2016 expiry May 2026 (passed) | checking… |  |
| 2018 | sier.tech | 29 Jan 2018 | Jan 2028 | Alibaba Cloud Computing Ltd.… | 29 Jan 2018 expires Jan 2028 | checking… |  |
| 2018 | sier.io | 23 Apr 2018 | Apr 2026 (passed) | IONOS SE | 23 Apr 2018 expiry Apr 2026 (passed) | checking… |  |
| 2019 | sier.id | 29 Aug 2019 | Aug 2030 | PT Jetcoms Netindo | 29 Aug 2019 expires Aug 2030 | checking… |  |
| 2019 | sier.fr | 8 Sep 2019 | Sep 2026 (passed) | Hosting Concepts B.V. d/b/a O… | 8 Sep 2019 expiry Sep 2026 (passed) | checking… | |
| 2021 | sier.se | 5 Nov 2021 | Nov 2026 | Loopia AB | 5 Nov 2021 expires Nov 2026 | checking… |  |
| 2023 | sier.mx | 20 Oct 2023 | Oct 2026 (passed) | InterNetX GmbH | 20 Oct 2023 expiry Oct 2026 (passed) | checking… |  |
| 2024 | sier.fun | 4 Apr 2024 | Apr 2027 | Alibaba Cloud Computing Ltd.… | 4 Apr 2024 expires Apr 2027 | checking… | |
| 2024 | sier.mn | 8 Apr 2024 | Apr 2027 | Datacom Co., Ltd. | 8 Apr 2024 expires Apr 2027 | checking… | |
| 2024 | sier.store | 21 Aug 2024 | Aug 2026 (passed) | Realtime Register B.V. | 21 Aug 2024 expiry Aug 2026 (passed) | checking… | |
| 2024 | sier.cc | 21 Sep 2024 | Sep 2026 (passed) | NameSilo, LLC | 21 Sep 2024 expiry Sep 2026 (passed) | checking… |  |
| 2024 | sier.web.id | 28 Nov 2024 | Nov 2026 | PT Jetcoms Netindo | 28 Nov 2024 expires Nov 2026 | checking… |  |
| 2025 | sier.ai | 10 Jan 2025 | Jan 2027 | GoDaddy.com, LLC | 10 Jan 2025 expires Jan 2027 | checking… |  |
| 2025 | sier.pro | 23 Mar 2025 | Mar 2027 | HOSTINGER operations, UAB | 23 Mar 2025 expires Mar 2027 | checking… |  |
| 2025 | sier.org.in | 30 Jul 2025 | Jul 2026 (passed) | HOSTINGER operations, UAB | 30 Jul 2025 expiry Jul 2026 (passed) | checking… |  |
| 2025 | sier.com.mx | 10 Sep 2025 | Sep 2027 | AKKY ONLINE SOLUTIONS, S.A. D… | 10 Sep 2025 expires Sep 2027 | checking… |  |
| 2025 | sier.net | 31 Oct 2025 | Oct 2026 (passed) | Gname 029 Inc | 31 Oct 2025 expiry Oct 2026 (passed) | checking… | |
| 2026 | sier.re | 6 Jan 2026 | Jan 2027 | Infomaniak Network SA | 6 Jan 2026 expires Jan 2027 | checking… |  |
| 2026 | sier.us | 27 Apr 2026 | Apr 2027 | Dominet (HK) Limited | 27 Apr 2026 expires Apr 2027 | checking… | |
| 2026 | sier.app | 18 May 2026 | May 2027 | Squarespace Domains II LLC | 18 May 2026 expires May 2027 | checking… |  |
| 2026 | sier.ca | 28 May 2026 | May 2029 | Go Daddy Domains Canada, Inc | 28 May 2026 expires May 2029 | checking… |  |
| 2026 | sier.dev | 26 Jun 2026 | Jun 2027 | DYNADOT LLC | 26 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | sier.buzz | 21 Jul 2026 | Jul 2027 | Spaceship, Inc. | 21 Jul 2026 expires Jul 2027 | checking… | |
| 2026 | sier.kr | 20 Sep 2026 | Sep 2027 | — | 20 Sep 2026 expires Sep 2027 | checking… |  |
| 2026 | sier.fashion | 28 Sep 2026 | Sep 2027 | GoDaddy.com, LLC | 28 Sep 2026 expires Sep 2027 | checking… |  |
| 2026 | sier.si | 1 Oct 2026 | Oct 2027 | Spaceship, Inc. | 1 Oct 2026 expires Oct 2027 | checking… |  |
| 2026 | sier.world | 7 Oct 2026 | Oct 2027 | GoDaddy.com, LLC | 7 Oct 2026 expires Oct 2027 | checking… |  |
| 2026 | sier.digital | 15 Oct 2026 | Oct 2027 | HOSTINGER operations, UAB | 15 Oct 2026 expires Oct 2027 | checking… |  |
| — | sier.academy | no date on record | — | — | no date on record | checking… |  |
| — | sier.at | no date on record | — | — | no date on record | checking… |  |
| — | sier.au | no date on record | — | Domain Directors Pty Ltd trad… | no date on record | checking… | |
| — | sier.be | no date on record | — | — | no date on record | checking… |  |
| — | sier.biz | no date on record | — | — | no date on record | checking… |  |
| — | sier.ch | no date on record | — | — | no date on record | checking… |  |
| — | sier.cl | no date on record | — | — | no date on record | checking… |  |
| — | sier.cn | no date on record | — | — | no date on record | checking… |  |
| — | sier.co.id | no date on record | — | — | no date on record | checking… | |
| — | sier.co.uk | no date on record | — | — | no date on record | checking… |  |
| — | sier.com.au | no date on record | — | — | no date on record | checking… | |
| — | sier.com.br | no date on record | — | — | no date on record | checking… |  |
| — | sier.com.co | no date on record | — | — | no date on record | checking… |  |
| — | sier.com.tn | no date on record | — | — | no date on record | checking… |  |
| — | sier.consulting | no date on record | — | — | no date on record | checking… | |
| — | sier.de | no date on record | — | — | no date on record | checking… |  |
| — | sier.design | no date on record | — | — | no date on record | checking… | |
| — | sier.es | no date on record | — | — | no date on record | checking… | |
| — | sier.eu | no date on record | — | Hostingsecure.com | no date on record | checking… | |
| — | sier.ind.br | no date on record | — | — | no date on record | checking… |  |
| — | sier.ing | no date on record | — | — | no date on record | checking… |  |
| — | sier.jp | no date on record | — | — | no date on record | checking… |  |
| — | sier.live | no date on record | — | — | no date on record | checking… | |
| — | sier.ltd | no date on record | — | — | no date on record | checking… | |
| — | sier.mk | no date on record | — | — | no date on record | checking… | |
| — | sier.net.co | no date on record | — | — | no date on record | checking… |  |
| — | sier.network | no date on record | — | — | no date on record | checking… |  |
| — | sier.news | no date on record | — | — | no date on record | checking… | |
| — | sier.nu | no date on record | — | — | no date on record | checking… | |
| — | sier.org.mk | no date on record | — | — | no date on record | checking… |  |
| — | sier.rest | no date on record | — | — | no date on record | checking… |  |
| — | sier.ro | no date on record | — | — | no date on record | checking… |  |
| — | sier.ru | no date on record | — | — | no date on record | checking… |  |
| — | sier.sh | no date on record | — | — | no date on record | checking… | |
| — | sier.tm | no date on record | — | — | no date on record | checking… |  |
| — | sier.tn | no date on record | — | — | no date on record | checking… |  |
| — | sier.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.