Building blocks
Session
One continuous visit: the sequence of page views and interactions a visitor makes before going idle.
A session ties together the pages, timings and errors of a single visit so you can follow a journey rather than isolated hits. It is the unit behind metrics like pages per session and where in a flow people drop off.
In fastmon a session is bounded by the short-lived Stitch identifier, so it reflects one visit and does not become a permanent profile.
Related terms
- BeaconThe small data packet the tracker sends to fastmon with a visit's measurements.
- TrackerThe lightweight script you embed once; it measures Core Web Vitals and errors directly in the browser.
- Stitchfastmon's short-lived, edge-derived identifier that groups a visit without cookies or cross-site tracking.
- PageviewA single page load or, in a single-page app, a route change counted as its own view.
- Collection modesPresets (Light, Standard, Full) that decide how much detail the tracker collects.
- Server-TimingAn HTTP header your backend can send to break down where server time was spent, visible in RUM.
- Cache-StatusWhether a response came from a CDN edge, the origin server or the browser cache.
Monitoring that
belongs in the EU.
Read-only by default: no cookies*, no long-lived identifiers, no US provider in the data path. Live in about five minutes.
Light
€29/month
200,000 pageviews included.
Need debugging and all features? Standard from €99 for 1M pageviews. Enterprise on request. See all plans