Most small business websites don't need cookie consent banners because they often don't engage in tracking that violates privacy laws. The article explains the difference between essential cookies and tracking cookies, and highlights how focusing on user privacy can enhance the overall website experience.

Evercookie is a JavaScript API designed to create highly persistent cookies by utilizing multiple browser storage mechanisms, allowing it to identify users even after standard cookies and other forms of storage have been deleted. It can propagate cookies across different browsers if certain technologies like Flash or Silverlight are available. However, using Evercookie may raise ethical concerns and can lead to performance issues on some devices.