dom.active '1' if there is active tracking, otherwise '0'
dom.active.tag.count Count of active tags
dom.active.tag.1 Active Nth tag
dom.active.start Active start timestamp (ISO Extended local date)
dom.active.duration Active elapsed (ISO Period)
dom.active.json Active interval as JSON
dom.tracked.count Count of tracked intervals
dom.tracked.1.tag.count Count of active tags
dom.tracked.1.tag.1 Tracked Nth, Nth tag
dom.tracked.1.start Tracked Nth, start time
dom.tracked.1.end Tracked Nth, end time, blank if closed
dom.tracked.1.duration Tracked Nth, elapsed
dom.tracked.1.json Tracked Nth, interval as JSON