A website is a virtual representation of your company and its products. The purpose of a website is to provide users with information about your business and allow them to purchase or inquire about your products and services.
A good website should provide the user with all the information they need to make an informed decision; if you would like for them to contact you, have an online form readily available. It is important to note that not all users are on the internet searching for your product or service, so it's important to spread the word about your website by advertising through other means as well, such as social media and print ads.
A website should be easy to navigate for users whether they are using a computer, tablet, or smartphone. User experience is key to successful web development; make your website as enjoyable for the user as possible without hindering its effectiveness.