HealthCare.gov, the troubled U.S. government website which has suffered from multiple technical issues, plans to double its capacity by the end of this month according to officials.

The increased capacity is expected to resolve current issues surrounding huge user demand on the site which has resulted in site slowdown and downtime.

The website, which forms part of the governments headline plans to reform the national health care system, was originally designed to handle 50,000 users concurrently, but this target has not been met.

The site now has the capacity to handle just 25,000 users, with critics blaming the issue of politicians managing the project rather than IT professionals.

U.S have imposed a record visa fine on outsourcer