Secret codes and twittering Birds

Laurent: A website gave a secret code and told me to publish it here: QPZJ7Y85TJYY . How do websites communicate with birds, unconnected by regular means to the world wide web? That is what Twitter is truly about. We habe been twittering long before humans have build computers to access the net.

Septime:
Codes
Numbers and Letters
apparently arbitrary
but not for the reciever