Every extension, oldest first
51by
We have seen 51by registered in 22 extensions. The oldest is 51by.com, registered on 28 Aug 2001; the newest, 51by.cam, on 16 Oct 2026.
Checking which of them answer in DNS today…
- Seen in
- 22 extensions
- Oldest
- 2001 51by.com
- Newest
- 2026 51by.cam
- In DNS today
- … checking
Registered in
| Year | Domain | Registered | Expires | Registrar | Details | DNS today | Screenshot |
|---|---|---|---|---|---|---|---|
| 2001 | 51by.com | 28 Aug 2001 | Aug 2026 (passed) | Hefei Juming Network Technolo… | 28 Aug 2001 expiry Aug 2026 (passed) | checking… | |
| 2010 | 51by.net | 23 Mar 2010 | Mar 2028 | Xiamen ChinaSource Internet S… | 23 Mar 2010 expires Mar 2028 | checking… |  |
| 2024 | 51by.cc | 25 Aug 2024 | Aug 2026 (passed) | Dynadot Inc | 25 Aug 2024 expiry Aug 2026 (passed) | checking… | |
| 2025 | 51by.xyz | 26 Jul 2025 | Jul 2026 (passed) | Namecheap | 26 Jul 2025 expiry Jul 2026 (passed) | checking… |  |
| 2025 | 51by.app | 7 Sep 2025 | Sep 2026 (passed) | Namecheap Inc. | 7 Sep 2025 expiry Sep 2026 (passed) | checking… | |
| 2025 | 51by.site | 13 Sep 2025 | Sep 2026 (passed) | NameCheap, Inc. | 13 Sep 2025 expiry Sep 2026 (passed) | checking… | |
| 2026 | 51by.org | 19 May 2026 | May 2027 | Dynadot Inc | 19 May 2026 expires May 2027 | checking… |  |
| 2026 | 51by.club | 29 May 2026 | May 2027 | Dynadot Inc | 29 May 2026 expires May 2027 | checking… |  |
| 2026 | 51by.asia | 3 Jun 2026 | Jun 2027 | Dynadot Inc | 3 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | 51by.lat | 4 Jun 2026 | Jun 2027 | Dynadot Inc | 4 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | 51by.one | 4 Jun 2026 | Jun 2027 | Dynadot Inc | 4 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | 51by.win | 4 Jun 2026 | Jun 2027 | Dynadot Inc | 4 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | 51by.bio | 18 Jun 2026 | Jun 2027 | Dynadot Inc | 18 Jun 2026 expires Jun 2027 | checking… |  |
| 2026 | 51by.io | 17 Aug 2026 | Aug 2027 | GoDaddy.com, LLC | 17 Aug 2026 expires Aug 2027 | checking… |  |
| 2026 | 51by.cam | 16 Oct 2026 | Oct 2027 | Dynadot Inc | 16 Oct 2026 expires Oct 2027 | checking… |  |
| — | 51by.cn | no date on record | — | 阿里云计算有限公司（万网） | no date on record | checking… | |
| — | 51by.co | no date on record | — | — | no date on record | checking… | |
| — | 51by.com.cn | no date on record | — | — | no date on record | checking… | |
| — | 51by.in | no date on record | — | — | no date on record | checking… | |
| — | 51by.ren | no date on record | — | — | no date on record | checking… | |
| — | 51by.top | no date on record | — | — | no date on record | checking… | |
| — | 51by.vip | 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.