Most companies have had a website for a number of years. Many are perhaps on their second or third iteration. For many companies though, once the website is developed it is then left with a minimum of modification or improvement.
The business challenge though is that the website provides a potential shop window for visitors. There are three primary challenges
Encouraging a visitor to navigate throughout a site
Converting visitors who visit the site i.e giving them the correct experience on the site
Getting sufficient of the correct type of visitors to find ,visit and explore the site