.pro (professional) is a generic top-level domain. It was created in 2002 and is operated by the Registry Services Corporation. The intention of the domain is to signal to web visitors that the website owner is a professional with valid credentials, but so far .pro has not been popular.
.pro domains are very expensive compared to other domains. Professional credentials must be verified, and the domain costs $350, with a one-time $100 registration fee. The .pro serves as an official certification that the website owner's credentials are accurate.
.pro has three second level domains: .law.pro, .med.pro, and .cpa.pro, reserved for lawyers, physicians, and certified public accountants, respectively. Direct second-level registrations were later opened up, with restrictions.
From Wikipedia, the free encyclopedia