Event hubs is great tool to deal with high hits on your website. It’s great tool which can handle millions of hit on your website.
Please learn about it on its official website Event Hubs
Event hubs is part of a part of the Azure Service Bus but its very different. What it do is it will collect data from each hit, create an event and pass it on MSMQ. And it can do it for millions of hits in a second. It does not guaranty you the processing will happen in real time but it will give you more through put. So in a way it is asynchronous by nature.