There are so many things that we need to check in a website But the main thing is that how Seo friendly it is. You should also take care about it's mobile version that it is mobile compatible or not. The simple design with all kind of information that a visitor can access is perfect you can add some designs to make it looks better. By the way whatever website you will use you should always take care of the security. You should choose the best possible host for it and if you want you can do
migration to cloud also.