Why, in titration, is universal indicator not commonly used?
The thing with universal indicators is that you have 6 different colors or so differentiating certain pH-ranges. 

Now if you want to titrate to a certain pH-Value, it is easier to have an indicator like phenolphtalein that changes from colorless to a color at a certain point (phenolphtalein being colorless from 0 to 8 and red for $&lt; 0$).

So you can titrate more accuratly to a certain pH-Value with specialized indicators. On the other hand you can't see where on the pH scale you are.

With an universal indicator you can get a feeling for where you are approximatly, but titrating to a certain value is very difficult.