ranking

.jcb registrar market share (June 2026)

In June 2026, GMO Internet, Inc. d/b/a Onamae.com held the largest share of .jcb domains: 4.8%, or 1 of 21. 1 registrar sold .jcb that month.

Top 1 registrars selling .jcb, June 2026

#RegistrarDomainsMarket shareCompany

1GMO Internet, Inc. d/b/a Onamae.com14.8%GMO Internet GroupGMO Internet, Inc. d/b/a Onamae.com1#1Market share4.8%CompanyGMO Internet Group

Each registrar’s share of all .jcb domains in June 2026, as the registry reported them.