Anthropic lookalike domains
Greyphish has recorded 207 domains that resemble Anthropic since February 2026, 56 of them in the last 90 days. Most of them (67%) are combosquats: Anthropic's name or one of its product names spelled correctly with a word added, most often “app”, “web”, “reset”. .com carries 64% of them, out of 39 endings in all. The pace has picked up, with 23 in the last 30 days against 15 in the 30 before. 27 certificates for unregistered .ph, .com.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 (12), web (7), reset (3), support (3).
Lookalikes per week
Show as a table
| Week of | Typo | Combo | Homoglyph | Total |
|---|---|---|---|---|
| 2026-04-20 | 3 | 5 | 0 | 8 |
| 2026-04-27 | 4 | 1 | 0 | 5 |
| 2026-05-04 | 0 | 9 | 0 | 9 |
| 2026-05-11 | 2 | 2 | 0 | 4 |
| 2026-05-18 | 2 | 4 | 0 | 6 |
| 2026-05-25 | 1 | 4 | 1 | 6 |
| 2026-06-01 | 2 | 2 | 0 | 4 |
| 2026-06-08 | 3 | 0 | 0 | 3 |
| 2026-06-15 | 5 | 4 | 0 | 9 |
| 2026-06-22 | 1 | 0 | 0 | 1 |
| 2026-06-29 | 0 | 1 | 0 | 1 |
| 2026-07-06 | 1 | 5 | 0 | 6 |
| 2026-07-13 | 1 | 0 | 0 | 1 |
| 2026-07-20 | 0 | 8 | 0 | 8 |
| 2026-07-27 | 0 | 3 | 0 | 3 |
| 2026-08-03 | 0 | 2 | 0 | 2 |
| 2026-08-10 | 1 | 4 | 0 | 5 |
| 2026-08-17 | 1 | 2 | 0 | 3 |
| 2026-08-24 | 6 | 1 | 0 | 7 |
| 2026-08-31 | 1 | 1 | 0 | 2 |
| 2026-09-07 | 0 | 3 | 0 | 3 |
| 2026-09-14 | 0 | 2 | 0 | 2 |
| 2026-09-21 | 0 | 3 | 1 | 4 |
| 2026-09-28 | 0 | 5 | 0 | 5 |
| 2026-10-05 | 0 | 8 | 0 | 8 |
| 2026-10-12 | 0 | 4 | 0 | 4 |
Endings
The 8 most used of the 39 top-level domains these lookalikes sit under.
| Ending | Lookalikes | Share |
|---|---|---|
| .com | 132 | 63.8% |
| .ru | 6 | 2.9% |
| .online | 5 | 2.4% |
| .org | 5 | 2.4% |
| .top | 5 | 2.4% |
| .net | 4 | 1.9% |
| .ai | 3 | 1.5% |
| .cn | 3 | 1.5% |
Where they are registered
For the 130 with a registrar in WHOIS (63% 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 | 21 | 16.2% | Retail |
| Cloudflare | 17 | 13.1% | Retail |
| Namecheap | 12 | 9.2% | Retail |
| Spaceship | 12 | 9.2% | Retail |
| Squarespace | 7 | 5.4% | Retail |
| Hostinger | 4 | 3.1% | Retail |
| IONOS | 4 | 3.1% | Retail |
| Name.com | 4 | 3.1% | Retail |
What the live ones do
45 of these lookalikes were registered and checked for a website and mail: 27 (60%) served a website and 15 (33%) 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 14 live ones checked against it (0%).
17 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 Anthropic; it is not necessarily malicious, and none of these is a claim about who registered it or why.
app-claude[.]netCombo, Oct 13Serves a websitedirectclaude[.]comCombo, Oct 13MX recordsapp-claude-ai[.]onlineCombo, Oct 12Not checkedapp-claude-ai[.]comCombo, Oct 12Not checkedclaudeservices[.]frCombo, Oct 11Serves a websiteMX recordsclaudeweber[.]chCombo, Oct 11Serves a websiteMX recordsclaudeapps[.]aiCombo, Oct 10Serves a websiteclaudewebagency[.]comCombo, Oct 10Serves a websiteclaude-billing[.]comCombo, Oct 8No site or mail when checkedclaudeaccounts[.]comCombo, Oct 8No site or mail when checked
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Further reading
More in big tech
Greyphish is not affiliated with Anthropic. Domains listed resemble Anthropic 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.