Every extension, oldest first
checksum
We have seen checksum registered in 78 extensions. The oldest is checksum.com, registered on 22 Dec 1995; the newest, checksum.center, on 21 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 78 extensions
- Oldest
- 1995 checksum.com
- Newest
- 2026 checksum.center
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 1995 | checksum.com | 22 Dec 1995 | Dec 2027 | Network Solutions, LLC | 22 Dec 1995 expires Dec 2027 | checking… |  |
| 1999 | checksum.dk | 6 Jul 1999 | Sep 2026 (passed) | Simply.com A/S | 6 Jul 1999 expiry Sep 2026 (passed) | checking… |  |
| 1999 | checksum.org | 4 Dec 1999 | Dec 2026 | Hosting Concepts B.V. d/b/a R… | 4 Dec 1999 expires Dec 2026 | checking… | |
| 2000 | checksum.net | 12 May 2000 | May 2027 | Gabia, Inc. | 12 May 2000 expires May 2027 | checking… | |
| 2001 | checksum.co.jp | 21 Nov 2001 | Nov 2026 | — | 21 Nov 2001 expires Nov 2026 | checking… | |
| 2007 | checksum.cz | 14 Feb 2007 | Feb 2027 | REG-INTERNET-CZ | 14 Feb 2007 expires Feb 2027 | checking… |  |
| 2013 | checksum.ca | 3 May 2013 | May 2028 | easyDNS Technologies Inc. | 3 May 2013 expires May 2028 | checking… |  |
| 2013 | checksum.com.ar | 9 Oct 2013 | Apr 2027 | nicar | 9 Oct 2013 expires Apr 2027 | checking… | |
| 2015 | checksum.co.za | 19 Jun 2015 | Jun 2027 | DIAMATRIX C.C. | 19 Jun 2015 expires Jun 2027 | checking… | |
| 2015 | checksum.pt | 23 Dec 2015 | Dec 2026 | — | 23 Dec 2015 expires Dec 2026 | checking… | |
| 2016 | checksum.top | 19 Mar 2016 | Mar 2027 | Namecheap Inc. | 19 Mar 2016 expires Mar 2027 | checking… | |
| 2017 | checksum.online | 30 Aug 2017 | Aug 2026 (passed) | Cloudflare, Inc. | 30 Aug 2017 expiry Aug 2026 (passed) | checking… |  |
| 2017 | checksum.in | 17 Sep 2017 | Sep 2026 (passed) | NIXI Holding Account | 17 Sep 2017 expiry Sep 2026 (passed) | checking… | |
| 2018 | checksum.cn | 18 Mar 2018 | Mar 2027 | 阿里云计算有限公司（万网） | 18 Mar 2018 expires Mar 2027 | checking… | |
| 2018 | checksum.app | 8 May 2018 | May 2027 | Blue Razor Domains, LLC | 8 May 2018 expires May 2027 | checking… | |
| 2019 | checksum.red | 7 Apr 2019 | Apr 2027 | Cloudflare, Inc | 7 Apr 2019 expires Apr 2027 | checking… |  |
| 2019 | checksum.cc | 15 Oct 2019 | Oct 2026 (passed) | NameCheap, Inc. | 15 Oct 2019 expiry Oct 2026 (passed) | checking… |  |
| 2021 | checksum.blog | 17 Feb 2021 | Feb 2027 | Squarespace Domains II LLC | 17 Feb 2021 expires Feb 2027 | checking… | |
| 2021 | checksum.mx | 1 Apr 2021 | Apr 2028 | Wild West Domains | 1 Apr 2021 expires Apr 2028 | checking… |  |
| 2021 | checksum.us | 23 Sep 2021 | Sep 2026 (passed) | Sav.com LLC | 23 Sep 2021 expiry Sep 2026 (passed) | checking… |  |
| 2021 | checksum.xyz | 13 Oct 2021 | Oct 2026 (passed) | Spaceship, Inc. | 13 Oct 2021 expiry Oct 2026 (passed) | checking… |  |
| 2021 | checksum.space | 8 Nov 2021 | Nov 2026 | Spaceship, Inc. | 8 Nov 2021 expires Nov 2026 | checking… |  |
| 2022 | checksum.se | 6 May 2022 | May 2027 | INLEED | 6 May 2022 expires May 2027 | checking… |  |
| 2022 | checksum.ai | 2 Jun 2022 | Jun 2026 (passed) | whois.namecheap.com | 2 Jun 2022 expiry Jun 2026 (passed) | checking… |  |
| 2022 | checksum.co.ke | 5 Jul 2022 | Jul 2026 (passed) | EAL | 5 Jul 2022 expiry Jul 2026 (passed) | checking… | |
| 2023 | checksum.tv | 18 Sep 2023 | Sep 2027 | Spaceship, Inc. | 18 Sep 2023 expires Sep 2027 | checking… |  |
| 2023 | checksum.store | 30 Oct 2023 | Oct 2026 (passed) | Tucows Domains Inc. | 30 Oct 2023 expiry Oct 2026 (passed) | checking… |  |
| 2023 | checksum.dev | 18 Nov 2023 | Nov 2026 | Name.com, Inc. | 18 Nov 2023 expires Nov 2026 | checking… |  |
| 2024 | checksum.fun | 14 Jul 2024 | Jul 2026 (passed) | NameCheap, Inc. | 14 Jul 2024 expiry Jul 2026 (passed) | checking… |  |
| 2025 | checksum.sitepending delete on 13 May 2026 | 28 Feb 2025 | Feb 2026 (passed) | Above.com Pty Ltd. | 28 Feb 2025 expiry Feb 2026 (passed) | checking… |  |
| 2025 | checksum.shop | 27 Mar 2025 | Mar 2027 | ALIBABA.COM SINGAPORE E-COMME… | 27 Mar 2025 expires Mar 2027 | checking… | |
| 2025 | checksum.io | 26 May 2025 | May 2027 | www.Names.plus | 26 May 2025 expires May 2027 | checking… |  |
| 2025 | checksum.tech | 4 Oct 2025 | Oct 2026 (passed) | NAME DOT STORE INC | 4 Oct 2025 expiry Oct 2026 (passed) | checking… |  |
| 2025 | checksum.cloud | 27 Dec 2025 | Dec 2026 | GMO Internet, Inc. d/b/a Onam… | 27 Dec 2025 expires Dec 2026 | checking… |  |
| 2026 | checksum.com.br | 11 Feb 2026 | Feb 2027 | — | 11 Feb 2026 expires Feb 2027 | checking… | |
| 2026 | checksum.id | 4 Jun 2026 | Jun 2027 | PT Jagat Informasi Solusi (in… | 4 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | checksum.works | 11 Jun 2026 | Jun 2027 | Cloudflare, Inc | 11 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | checksum.pro | 14 Jun 2026 | Jun 2027 | HOSTINGER operations, UAB | 14 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | checksum.me | 25 Jun 2026 | Jun 2027 | Dominet (HK) Limited | 25 Jun 2026 expires Jun 2027 | checking… | |
| 2026 | checksum.to | 25 Jul 2026 | Jul 2027 | NAMECHEAP INC | 25 Jul 2026 expires Jul 2027 | checking… |  |
| 2026 | checksum.bot | 14 Aug 2026 | Aug 2027 | Spaceship, Inc. | 14 Aug 2026 expires Aug 2027 | checking… | |
| 2026 | checksum.name | 24 Aug 2026 | Aug 2027 | Porkbun LLC | 24 Aug 2026 expires Aug 2027 | checking… |  |
| 2026 | checksum.re | 1 Sep 2026 | Sep 2027 | SAS Ligne Web Services - LWS | 1 Sep 2026 expires Sep 2027 | checking… |  |
| 2026 | checksum.click | 2 Sep 2026 | Sep 2027 | Global Domain Group LLC | 2 Sep 2026 expires Sep 2027 | checking… |  |
| 2026 | checksum.news | 5 Sep 2026 | Sep 2027 | Cloudflare, Inc. | 5 Sep 2026 expires Sep 2027 | checking… |  |
| 2026 | checksum.guide | 27 Sep 2026 | Sep 2027 | Cloudflare, Inc. | 27 Sep 2026 expires Sep 2027 | checking… |  |
| 2026 | checksum.center | 21 Oct 2026 | Oct 2027 | Alibaba Cloud Computing Ltd.… | 21 Oct 2026 expires Oct 2027 | checking… | |
| — | checksum.agency | no date on record | — | — | no date on record | checking… |  |
| — | checksum.at | no date on record | — | — | no date on record | checking… | |
| — | checksum.be | no date on record | — | — | no date on record | checking… |  |
| — | checksum.ch | no date on record | — | — | no date on record | checking… |  |
| — | checksum.claims | no date on record | — | — | no date on record | checking… |  |
| — | checksum.co.uk | no date on record | — | — | no date on record | checking… | |
| — | checksum.com.au | no date on record | — | — | no date on record | checking… |  |
| — | checksum.com.uy | no date on record | — | — | no date on record | checking… |  |
| — | checksum.de | no date on record | — | — | no date on record | checking… | |
| — | checksum.eu | no date on record | — | NETIM | no date on record | checking… | |
| — | checksum.fail | no date on record | — | — | no date on record | checking… |  |
| — | checksum.fi | no date on record | — | — | no date on record | checking… | |
| — | checksum.group | no date on record | — | — | no date on record | checking… |  |
| — | checksum.hr | no date on record | — | — | no date on record | checking… |  |
| — | checksum.hu | no date on record | — | — | no date on record | checking… |  |
| — | checksum.info | no date on record | — | — | no date on record | checking… | |
| — | checksum.li | no date on record | — | — | no date on record | checking… | |
| — | checksum.link | no date on record | — | — | no date on record | checking… | |
| — | checksum.llc | no date on record | — | — | no date on record | checking… |  |
| — | checksum.media | no date on record | — | — | no date on record | checking… |  |
| — | checksum.net.au | no date on record | — | — | no date on record | checking… | |
| — | checksum.network | no date on record | — | — | no date on record | checking… |  |
| — | checksum.page | no date on record | — | — | no date on record | checking… | |
| — | checksum.properties | no date on record | — | — | no date on record | checking… | |
| — | checksum.rocks | no date on record | — | — | no date on record | checking… | |
| — | checksum.sh | no date on record | — | — | no date on record | checking… |  |
| — | checksum.si | no date on record | — | — | no date on record | checking… | |
| — | checksum.so | no date on record | — | — | no date on record | checking… |  |
| — | checksum.solutions | no date on record | — | — | no date on record | checking… |  |
| — | checksum.studio | no date on record | — | — | no date on record | checking… |  |
| — | checksum.tools | 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.