You’re going to think this is too simple to work.
Certain website designs attract certain target markets. The design that attracts gardeners, for example, is going to be different than the design that attracts electrical engineers.
Knowing this, the question becomes, “How do you design a website that you KNOW will attract your target market like no other?”
And how do you do this without a lot of market research, testing, trial and error and so forth?