OpenAI lookalike domains
Greyphish has recorded 471 domains that resemble OpenAI since February 2026, 119 of them in the last 90 days. Most of them (75%) are combosquats: OpenAI's name or one of its product names spelled correctly with a word added, most often “app”, “help”, “web”. .com carries 47% of them, out of 79 endings in all. The pace has picked up, with 55 in the last 30 days against 20 in the 30 before. 30 certificates for unregistered .ph, .com.ph, .net.ph names (registry wildcard) are excluded: the registry answers for any name under those endings, so nobody had to register one to get a certificate for it.
Data as of . Public sources only.
What kind of lookalikes
One or two keystrokes away from the real name: a letter dropped, doubled, swapped or mistyped. More
A letter swapped for one that looks the same, in ASCII or in Unicode written as punycode. More
Words most often added to the name in the last 90 days: app (42), help (9), web (7), login (7), service (5), direct (3).
Lookalikes per week
Show as a table
| Week of | Typo | Combo | Homoglyph | Total |
|---|---|---|---|---|
| 2026-04-20 | 1 | 13 | 1 | 15 |
| 2026-04-27 | 0 | 8 | 0 | 8 |
| 2026-05-04 | 1 | 7 | 2 | 10 |
| 2026-05-11 | 0 | 13 | 0 | 13 |
| 2026-05-18 | 0 | 8 | 3 | 11 |
| 2026-05-25 | 2 | 4 | 1 | 7 |
| 2026-06-01 | 2 | 7 | 1 | 10 |
| 2026-06-08 | 1 | 2 | 0 | 3 |
| 2026-06-15 | 0 | 7 | 4 | 11 |
| 2026-06-22 | 1 | 8 | 2 | 11 |
| 2026-06-29 | 5 | 11 | 0 | 16 |
| 2026-07-06 | 1 | 10 | 0 | 11 |
| 2026-07-13 | 1 | 4 | 0 | 5 |
| 2026-07-20 | 0 | 9 | 0 | 9 |
| 2026-07-27 | 2 | 2 | 0 | 4 |
| 2026-08-03 | 0 | 24 | 0 | 24 |
| 2026-08-10 | 3 | 5 | 0 | 8 |
| 2026-08-17 | 0 | 5 | 0 | 5 |
| 2026-08-24 | 2 | 2 | 0 | 4 |
| 2026-08-31 | 2 | 4 | 1 | 7 |
| 2026-09-07 | 0 | 1 | 0 | 1 |
| 2026-09-14 | 2 | 3 | 2 | 7 |
| 2026-09-21 | 0 | 4 | 0 | 4 |
| 2026-09-28 | 1 | 12 | 0 | 13 |
| 2026-10-05 | 2 | 23 | 0 | 25 |
| 2026-10-12 | 0 | 6 | 0 | 6 |
Endings
The 8 most used of the 79 top-level domains these lookalikes sit under.
| Ending | Lookalikes | Share |
|---|---|---|
| .com | 221 | 46.9% |
| .net | 18 | 3.8% |
| .ru | 16 | 3.4% |
| .org | 15 | 3.2% |
| .de | 10 | 2.1% |
| .xyz | 10 | 2.1% |
| .ai | 8 | 1.7% |
| .online | 8 | 1.7% |
Where they are registered
For the 251 with a registrar in WHOIS (53% of all). Brand-protection registrars mostly hold defensive registrations made by brands themselves, so a domain there is more likely the brand's own than an imitation.
| Registrar | Lookalikes | Share | Type |
|---|---|---|---|
| GoDaddy | 61 | 24.3% | Retail |
| Dynadot | 23 | 9.2% | Retail |
| Namecheap | 19 | 7.6% | Retail |
| Cloudflare | 18 | 7.2% | Retail |
| Spaceship | 15 | 6.0% | Retail |
| NameBright | 13 | 5.2% | Retail |
| Porkbun | 12 | 4.8% | Retail |
| Squarespace | 10 | 4.0% | Retail |
What the live ones do
101 of these lookalikes were registered and checked for a website and mail: 45 (45%) served a website and 18 (18%) publish MX records, so they can receive email. Checks run on the higher-severity matches that resolve, not on every lookalike.
Google Web Risk lists none of the 41 live ones checked against it (0%).
43 were tracked while live and 0 have since gone down. See what to do about a lookalike.
Recent examples
The 10 most recent, written with [.] so they cannot be clicked. The brand's own domains and registrations held by brand-protection registrars are left out. A lookalike resembles OpenAI; it is not necessarily malicious, and none of these is a claim about who registered it or why.
openaiapps[.]xyzCombo, Oct 12Serves a websitechatgptappstore[.]comCombo, Oct 12No site or mail when checkedchatgptapps[.]storeCombo, Oct 12Serves a websitechatgptapps[.]onlineCombo, Oct 12No site or mail when checkedchatgptapps[.]aiCombo, Oct 12No site or mail when checkedchatgptlogin-deutsch[.]deCombo, Oct 12No site or mail when checkedrealopenai[.]siCombo, Oct 11No site or mail when checkedopenaiappssdk[.]devCombo, Oct 11Serves a websitechatgptdirect[.]comCombo, Oct 11No site or mail when checkedgetchatgpt[.]netCombo, Oct 11Serves a website
Or watch it free: Greyphish tells you when a new lookalike of your domain is registered or goes live.
Further reading
More in big tech
Greyphish is not affiliated with OpenAI. Domains listed resemble OpenAI by spelling; registration alone says nothing about intent. Counts cover domains first seen in public Certificate Transparency logs and ICANN zone files; domains that Greyphish customers watch are excluded.