This is the 8444th most frequent Spanish word.
rastreador
Tracker.
Here, 'rastreador' refers to a tool or system used to track packages.
El rastreador del paquete muestra que está en tránsito.
The package tracker shows that it is in transit.
In this case, 'rastreador' is a device used for tracking animals.
Un rastreador de animales puede ayudar a seguir el recorrido de una criatura.
An animal tracker can help to follow the path of a creature.
This usage of 'rastreador' describes a person skilled in tracking or searching for something or someone in nature.