In fact, the open source Apache web server has been the primary beneficiary of any “appearance” benefit from parked domains. Apache is used by domain registrars Register.com, 1&1 Internet, Dotster and DirectNIC, while Go Daddy and enom use Windows Server 2003 and Network Solutions runs on the Solaris OS and SunOne server.
Apache is even more dominant among parking-for-profit services that place ads on parked domains. Domain Sponsor, Fabulous.com, Sedo, GoldKey, NameDrive, Domain Hop, TrafficZ, ParkingDots and Traffic Club all are served by Apache and hosted on either Linux or FreeBSD. Of parking services with substantial domains, only Parking Site uses WIndows Server 2003.