"Special URLs in Shouts"

So like, did we ever find out what this actually even meant?
I remember it being asked about when it was revealed but I never saw an actual answer, was it ever even revealed what it meant at all?
Definitely the most forgettable and random perk from Champion rank, not even the store has a further description of what it means like some other effects despite being probably the least simple one to explain.

 

im guessing special url means clickable url but idk

 

Fairly sure they can be regardless