In this article, we will discover the process of sending custom metrics, provided to us through the xk6-browser, in order to gain a better understanding of our performance tests. Through the integration of these metrics, we will be able to create more tailored Slack messages that will help to manage our rule sets.

Grafana Faro and xk6-browser are both new tools within the Grafana Labs open source ecosystem, but the pairing is already showing a lot of potential in terms of frontend monitoring and performance testing. Faro, which was announced last November, includes a highly configurable SDK that instruments web apps to capture observability signals that can then be correlated with backend and infrastructure data.