Once you receive the track, first track it here: 

https://parcelsapp.com/

In the right-hand column, you can see the name of the company that shipped your package, so for more detailed delivery information, you can check the official websites of the courier services:

https://novapost.com/

https://www.dpd.com/

https://www.myhermes.de/

https://www.fedex.com/

http://www.ups.com/

Sometimes, you may receive your tracking number, but there is no information on any of the websites, or it may say that there is no information about your package. There is no need to worry — occasionally it takes a short amount of time (on average about 3 days) for the courier service to enter the necessary information and for your package to start moving.