A website designer is often responsible for the layout, color scheme, and general design of a website. Designing a website is not just about making said website aesthetically pleasing, though. Skilled website designers must also make a website easy to navigate, so visitors can find exactly what they need as soon as possible. Website designers must also know how to help a website rank in a search engine and where to place advertisements so they are effective.
Website designers are usually creative types, but extensive knowledge of computers is also necessary. Even designers who use simple website design software should have at least some computer programming and coding knowledge.
Source: The Art Career Project