The addition of .CO as a new top-level domain on WordPress.com, allows WordPress.com users to choose and register a .CO domain name from among the already existing options: .ME,.COM, .NET, and .ORG. For the .CO domain name one has to pay $25 a year.
As WordPress.com is a very popular web hosting option among SME companies, the addition of .CO as a to choose from top-level domain will add to the popularity of the platform.
The .CO top-level domain is originally assigned to Columbia, but in 2010 the TLD was opened up so that any web hosting user could register a .CO domain name. Its shortness and the memorable aspect have made the domain name extension extremely popular, even among the largest companies in the world. Some well-known examples include Twitter (t.co), Google (g.co), Amazon (a.co), WordAds.co, and many, many others.
Since launching in 2010, more than 1.5 million .CO domain names have been registered by individuals and businesses in over 200 countries worldwide.