Fusu is the Domain Stock Exchange. Instead of buying domains in its entirety, it allows investors to invest in fractional ownership ("shares") of domains. Like a traditional stock exchange, Fusu provides the trading platform for owners, shareholders and investors.

Fusu a.s. is a share company based in Slovakia. It was founded by a group of industry professionals and is backed by EuroDNS, the Luxembourg-based registrar.

Domains are kept at Fusu Certified Registrars; Fusu has to approve any owner change or transfer.