Did your site just went viral on social media, had your product pitched on [insert your local variant of "Shark Tank" here], or did your festival site just launch its ticket sale? In these scenarios, no site survives its first contact with production traffic.

That’s why it is useful to know in advance how your project will behave at scale under production workloads. In this talk, I will talk about how to implement high-scale load-testing with Open Source tools like Grafana K6. Along the way, we will cover how to code your test cases to mimic user behaviour realistically, how your testing infrastructure should look like to simulate 10-100k simultaneous users and even how you can incorporate regular load tests into your CI/CD pipeline.

Real-world case studies included.