Can everyone with access to the link track the transport?

The tracking link URL is meant to be sent to consignees by shippers to get arrival updates for their specific delivery. Anyone receiving the link can access the tracking

For how long is the transport information available via the link?

The Link does not expire automatically. However shipper can "stop sharing" and remove link manually.

When is the truck displayed on the map of the tracking link?

The location of the truck is shown if the vehicle is currently heading towards the location, and it has left previous stop.