This may have been done with a view to reserving the domain name for future development, and to protect against the possibility of cybersquatting.
This is a single-page website that people see when they type the domain name or follow a link in a web browser.
The keywords for any given domain name provide clues as to the intent of the visitor before arriving.
There are several companies that actively cater to domain name holders and act as middlemen to serve advertisements on parking pages.
The parking pages are propagated automatically on a domain holder's web property when they either change the name servers or forward the URL.