Treehouse lookalike domains
Greyphish has recorded 63 domains that resemble Treehouse since February 2026, 13 of them in the last 90 days. Nearly all of them (94%) are combosquats: Treehouse spelled correctly with a word added. No single ending dominates: they are spread over 30, led by .com and .net. The pace has picked up, with 7 in the last 30 days against 3 in the 30 before.
Data as of . Public sources only.
What kind of lookalikes
Lookalikes per week
Show as a table
| Week of | Typo | Combo | Total |
|---|---|---|---|
| 2026-04-20 | 2 | 2 | 4 |
| 2026-04-27 | 0 | 0 | 0 |
| 2026-05-04 | 0 | 2 | 2 |
| 2026-05-11 | 0 | 2 | 2 |
| 2026-05-18 | 0 | 4 | 4 |
| 2026-05-25 | 0 | 1 | 1 |
| 2026-06-01 | 0 | 1 | 1 |
| 2026-06-08 | 0 | 1 | 1 |
| 2026-06-15 | 0 | 0 | 0 |
| 2026-06-22 | 0 | 0 | 0 |
| 2026-06-29 | 0 | 0 | 0 |
| 2026-07-06 | 0 | 0 | 0 |
| 2026-07-13 | 0 | 0 | 0 |
| 2026-07-20 | 0 | 0 | 0 |
| 2026-07-27 | 0 | 1 | 1 |
| 2026-08-03 | 0 | 2 | 2 |
| 2026-08-10 | 0 | 0 | 0 |
| 2026-08-17 | 1 | 0 | 1 |
| 2026-08-24 | 0 | 2 | 2 |
| 2026-08-31 | 0 | 0 | 0 |
| 2026-09-07 | 0 | 0 | 0 |
| 2026-09-14 | 0 | 0 | 0 |
| 2026-09-21 | 0 | 0 | 0 |
| 2026-09-28 | 0 | 3 | 3 |
| 2026-10-05 | 0 | 3 | 3 |
| 2026-10-12 | 0 | 1 | 1 |
Endings
The 8 most used of the 30 top-level domains these lookalikes sit under.
| Ending | Lookalikes | Share |
|---|---|---|
| .com | 24 | 38.1% |
| .net | 3 | 4.8% |
| .org | 3 | 4.8% |
| .co.uk | 2 | 3.2% |
| .com.au | 2 | 3.2% |
| .in | 2 | 3.2% |
| .nl | 2 | 3.2% |
| .store | 2 | 3.2% |
Where they are registered
For the 27 with a registrar in WHOIS (43% 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 | 13 | 48.1% | Retail |
| Namecheap | 5 | 18.5% | Retail |
| Key-Systems | 2 | 7.4% | Retail |
| Porkbun | 2 | 7.4% | Retail |
| Cosmotown | 1 | 3.7% | Retail |
| DropCatch.com 556 | 1 | 3.7% | Retail |
| Dynadot | 1 | 3.7% | Retail |
| Launchpad.com | 1 | 3.7% | Retail |
What the live ones do
18 of these lookalikes were registered and checked for a website and mail: 10 (56%) served a website and 11 (61%) 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 4 live ones checked against it.
6 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 Treehouse; it is not necessarily malicious, and none of these is a claim about who registered it or why.
treehouserecoverypdx[.]comCombo, Oct 14Serves a websiteMX recordstreehouserecovery[.]storeCombo, Oct 11No site or mail when checkedtreehousewebsite[.]comCombo, Oct 8Serves a websitetreehouseunlocked[.]co[.]ukCombo, Oct 5Serves a websitetreehouseonlineacademy[.]comCombo, Oct 4Serves a websiteMX recordstreehousesupportservices[.]comCombo, Oct 4Serves a websiteMX recordstreehouseapp[.]comCombo, Oct 1Not checkedmytreehouse[.]aiCombo, Aug 27No site or mail when checkedmytreehouse[.]techCombo, Aug 24Not checkedteatreehouse[.]comTypo, Aug 19Not checked
Or watch it free: Greyphish tells you when a new lookalike of your domain is registered or goes live.
Further reading
More in education
Greyphish is not affiliated with Treehouse. Domains listed resemble Treehouse 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.