Very often website owners face the question "How many users will my website attract during Black Friday?” The answer is a key to proper planning of the necessary hosting resources. For marketing experts that is a piece of cake. We would like to give you a few tips on how to sell more through your online store. We will not focus on marketing, campaigns, clicks or banners. Instead we will discuss how to optimize your website so that it can withstand the rush of visitors on this year's Black Friday.