OpenSea lookalike domains
Greyphish has recorded 81 domains that resemble OpenSea since February 2026, 28 of them in the last 90 days. They split between typosquats (54%) and combosquats (42%). .io carries 64% of them, out of 11 endings in all. The pace has picked up, with 13 in the last 30 days against 6 in the 30 before. The busiest week began 14 September 2026, with 12 new ones. 87 certificates for unregistered .com.ph, .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: support (9), app (3).
Lookalikes per week
Show as a table
| Week of | Typo | Combo | Homoglyph | Total |
|---|---|---|---|---|
| 2026-04-20 | 1 | 2 | 0 | 3 |
| 2026-04-27 | 1 | 0 | 0 | 1 |
| 2026-05-04 | 0 | 0 | 0 | 0 |
| 2026-05-11 | 0 | 2 | 0 | 2 |
| 2026-05-18 | 0 | 0 | 0 | 0 |
| 2026-05-25 | 1 | 0 | 0 | 1 |
| 2026-06-01 | 0 | 0 | 0 | 0 |
| 2026-06-08 | 1 | 0 | 0 | 1 |
| 2026-06-15 | 0 | 1 | 0 | 1 |
| 2026-06-22 | 0 | 0 | 0 | 0 |
| 2026-06-29 | 0 | 0 | 0 | 0 |
| 2026-07-06 | 0 | 0 | 1 | 1 |
| 2026-07-13 | 0 | 1 | 0 | 1 |
| 2026-07-20 | 0 | 4 | 0 | 4 |
| 2026-07-27 | 0 | 1 | 0 | 1 |
| 2026-08-03 | 2 | 0 | 0 | 2 |
| 2026-08-10 | 0 | 1 | 0 | 1 |
| 2026-08-17 | 0 | 2 | 0 | 2 |
| 2026-08-24 | 0 | 1 | 0 | 1 |
| 2026-08-31 | 0 | 2 | 0 | 2 |
| 2026-09-07 | 0 | 1 | 0 | 1 |
| 2026-09-14 | 11 | 0 | 1 | 12 |
| 2026-09-21 | 0 | 0 | 0 | 0 |
| 2026-09-28 | 0 | 0 | 0 | 0 |
| 2026-10-05 | 0 | 1 | 0 | 1 |
| 2026-10-12 | 0 | 0 | 0 | 0 |
Endings
The 8 most used of the 11 top-level domains these lookalikes sit under.
| Ending | Lookalikes | Share |
|---|---|---|
| .io | 52 | 64.2% |
| .com | 11 | 13.6% |
| .org | 4 | 4.9% |
| .net | 3 | 3.7% |
| .ai | 2 | 2.5% |
| .online | 2 | 2.5% |
| .to | 2 | 2.5% |
| .xyz | 2 | 2.5% |
Where they are registered
For the 61 with a registrar in WHOIS (75% 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 |
|---|---|---|---|
| Dynadot | 21 | 34.4% | Retail |
| NameSilo | 11 | 18.0% | Retail |
| CommuniGal Communication | 5 | 8.2% | Retail |
| Namecheap | 5 | 8.2% | Retail |
| GoDaddy | 4 | 6.6% | Retail |
| Hosting Concepts | 4 | 6.6% | Retail |
| Cloudflare | 2 | 3.3% | Retail |
| Gandi | 1 | 1.6% | Retail |
What the live ones do
Google Web Risk lists none of the 1 live ones checked against it.
1 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 OpenSea; it is not necessarily malicious, and none of these is a claim about who registered it or why.
opensea-app[.]onlineCombo, Oct 7Serves a websiteMX recordsppensea[.]ioTypo, Sep 18Not checkedpoensea[.]ioTypo, Sep 18Not checkedopwnsea[.]ioTypo, Sep 18Not checkedoprnsea[.]ioTypo, Sep 18Not checkedoppensea[.]ioTypo, Sep 18Not checkedopnsea[.]ioTypo, Sep 18Not checkedopesnea[.]ioTypo, Sep 18Not checkedopennsea[.]ioHomoglyph, Sep 18Not checkedopendea[.]ioTypo, Sep 18Not checked
Or watch it free: Greyphish tells you when a new lookalike of your domain is registered or goes live.
Further reading
More in crypto
Greyphish is not affiliated with OpenSea. Domains listed resemble OpenSea 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.