Coursera lookalike domains
Greyphish has recorded 63 domains that resemble Coursera since February 2026, 6 of them in the last 90 days. They split between typosquats (59%) and combosquats (41%). .org carries 70% of them, out of 10 endings in all. The pace has picked up, with 5 in the last 30 days against 0 in the 30 before. 22 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
Lookalikes per week
Show as a table
| Week of | Typo | Combo | Total |
|---|---|---|---|
| 2026-04-20 | 0 | 1 | 1 |
| 2026-04-27 | 0 | 0 | 0 |
| 2026-05-04 | 0 | 1 | 1 |
| 2026-05-11 | 1 | 4 | 5 |
| 2026-05-18 | 1 | 4 | 5 |
| 2026-05-25 | 0 | 1 | 1 |
| 2026-06-01 | 2 | 0 | 2 |
| 2026-06-08 | 3 | 0 | 3 |
| 2026-06-15 | 1 | 0 | 1 |
| 2026-06-22 | 0 | 0 | 0 |
| 2026-06-29 | 0 | 0 | 0 |
| 2026-07-06 | 0 | 0 | 0 |
| 2026-07-13 | 0 | 1 | 1 |
| 2026-07-20 | 0 | 0 | 0 |
| 2026-07-27 | 0 | 1 | 1 |
| 2026-08-03 | 0 | 0 | 0 |
| 2026-08-10 | 0 | 0 | 0 |
| 2026-08-17 | 0 | 0 | 0 |
| 2026-08-24 | 0 | 0 | 0 |
| 2026-08-31 | 0 | 0 | 0 |
| 2026-09-07 | 0 | 0 | 0 |
| 2026-09-14 | 0 | 0 | 0 |
| 2026-09-21 | 0 | 1 | 1 |
| 2026-09-28 | 0 | 1 | 1 |
| 2026-10-05 | 3 | 0 | 3 |
| 2026-10-12 | 0 | 0 | 0 |
Endings
The 8 most used of the 10 top-level domains these lookalikes sit under.
| Ending | Lookalikes | Share |
|---|---|---|
| .org | 44 | 69.8% |
| .com | 8 | 12.7% |
| .info | 2 | 3.2% |
| .pro | 2 | 3.2% |
| .top | 2 | 3.2% |
| .click | 1 | 1.6% |
| .courses | 1 | 1.6% |
| .digital | 1 | 1.6% |
Where they are registered
For the 51 with a registrar in WHOIS (81% 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 | 11 | 21.6% | Retail |
| GoDaddy | 7 | 13.7% | Retail |
| NameSilo | 5 | 9.8% | Retail |
| Sav | 5 | 9.8% | Retail |
| Cloudflare | 4 | 7.8% | Retail |
| Spaceship | 4 | 7.8% | Retail |
| Squarespace | 3 | 5.9% | Retail |
| Porkbun | 2 | 3.9% | Retail |
What the live ones do
Google Web Risk lists none of the 1 live ones checked against it.
2 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 Coursera; it is not necessarily malicious, and none of these is a claim about who registered it or why.
coirsera[.]orgTypo, Oct 9Not checkedvoursera[.]orgTypo, Oct 9Not checkedciursera[.]orgTypo, Oct 9Not checkedcourseraportal[.]coursesCombo, Oct 4Serves a websitecourseraapp[.]ruCombo, Sep 21Serves a websitecoursera-app-workers[.]orgCombo, Jul 29Not checkedcoursera-mobile-app[.]comCombo, Jul 13Not checkedcourserax[.]orgTypo, Jun 21Not checkedcoursrra[.]orgTypo, Jun 10Not checkedcouesera[.]orgTypo, Jun 10Not 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 Coursera. Domains listed resemble Coursera 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.