Ask HN: How to load test a site with real world conditions

Hey HN,

I recently put out a web app for secure end to end file transfer based off of the now defunct firefox send project. I want to load test it to ensure it can handle a reasonable amount of traffic before marketing it.

I also would like to stimulate real world users, and since the application performs encryption client side in the browser, I would want that part to be stimulated also in the load test.

Is there a good way to load test a website in a way that reflects real world conditions?