The Grafana Faro Web SDK, part of the Grafana Faro project, is a highly configurable web SDK for real user monitoring (RUM) that instruments browser frontend applications to capture observability signals. Frontend telemetry can then be correlated with backend and infrastructure data for full-stack observability.
The Faro performance instrumentation processes and sends all resource entries emitted by the browsers resource timeline.
The number of entries emitted can grow very large depending on how resource heavy a web app/site is.
This can be hundreds of items and more per user session!
Most users are interested in initial load and render performance, web-vitals and xhr/fetch performance.
So we want to decrease resource consumption by only tracking the most necessary entries an make the rest opt-in
What
Only track resources initiated by the fetch method or xhml-http-request i. e. initiatorType: xmlhttprequest | fetch
Allow to enable tracking all resource entries or to disable tracking of resource items
Why
The Faro performance instrumentation processes and sends all resource entries emitted by the browsers resource timeline. The number of entries emitted can grow very large depending on how resource heavy a web app/site is. This can be hundreds of items and more per user session!
Most users are interested in initial load and render performance, web-vitals and xhr/fetch performance. So we want to decrease resource consumption by only tracking the most necessary entries an make the rest opt-in
What
fetchmethod orxhml-http-requesti. e.initiatorType: xmlhttprequest | fetchLinks
Checklist