De or het ticketting?

The correct Dutch article is:

de ticketting

Rule Words ending in -ing: almost always de. See the rule

This word is not in the word lists we use to double-check answers.

How to use ticketting

the tickettingde ticketting
this tickettingdeze ticketting
that tickettingdie ticketting
our tickettingonze ticketting
your tickettingjouw ticketting
every tickettingelke ticketting
which ticketting?welke ticketting?
a big ticketting / the big tickettingeen grote ticketting, de grote ticketting