Domain registration basic question

[KaneCo]

Sometime when I am searching for names it says the damoin can be backordered but other time it does not. How does a domain become not available for backorder? just wondering for basic knowledge!


:brushteeth:

 

[RyuKenLi]

I think when someone at the same registrar has already backordered it.

 

[noelius]

Registering it before expiring, of course.