A .Pro domain name is the first and only restricted top-level domain exclusively for professionals. It is a domain indicating professionalism and credibility, and includes authentication and verification. Second-level .Pro domains are now available to all professionals, regardless of industry, country or organization. Any business can register a second-level .Pro domain. As long as you have a business license, you are likely to be eligible to register a .Pro domain.

Third-level .Pro domains are also available with profession-specific domain names (.eng.Pro, .med.Pro, .law.Pro or .cpa.Pro). An example of a third level domain is mydomain.eng.Pro.