Dash0 acquires Polar Signals

May 28, 2026

Contributors

Web events as chart annotations

Correlate spikes and dips in your time-series charts with what real users were doing. Web events from RUM can now be overlaid as annotations, alongside the existing log, Kubernetes, and service event sources.

Chart showing log and web events living together

Time-series widgets on dashboards already support annotations from logs, Kubernetes events, and service events. Today, web events join the party.
Add a Web Events annotation to any time-series widget, filter it the way you would in the Web Events Explorer, and the matching events appear as markers on the chart's timeline. When markers cluster, they collapse into a single pill grouped per kind, so a burst of page loads stays visually distinct from, say, a deployment marker sitting right next to it. The chart legend now has its own "Web events" row too, counting them separately from logs.
Each marker comes with a tooltip showing the event's attributes and a one-click link straight to the Web Events Explorer — with the same filter applied and the event already selected — so you can go from "what happened around 14:32?" to the exact session event without losing your place.