Dash0 acquires Polar Signals

Apr 17, 2026

Domain visibility for multi-site setups

Running multiple sites on a single web integration? Now you can finally see which domain each session came from.

If you're using a shared web integration across multiple domains — think franchise networks, regional storefronts, or white-label deployments — you've probably wondered which domain a particular session was visiting. Until now, there was no way to tell from the Dash0 UI.

This update surfaces the page.url.domain attribute in three places:

Session list sidebar

The session summary card now shows the domain alongside location and browser info, so you can identify which site a user was on at a glance.

Sidebar domain display
Domain display in the sidebar

Session detail page

When viewing a full session, the domain appears in the header for quick context as you step through page views and events.

Domain display in full sessions page
Domain display in full sessions page

Dashboard filters

A new Domain filter variable is available in both the Overview and Web Vitals dashboards, letting you slice metrics by domain across your entire network.

Domain filter in dashboard views
Domain filter in dashboard views

Also in this update:

  • On smaller screens, the session detail header items no longer get squeezed — they now wrap gracefully instead.