Yeah back of the temp.
When I started with Dominos eons ago the temp was about 420, and about a 7:30 to 8:00 bake time which make a very soft, and chewy pizza, and cooks it thouroughly.
But as time progressed and the pressures to put out pizza at a faster rate, and increase the capacity of our ovens the temperature rose, and the bake time went down. I have been in some dominos pizza lately, and seen the temp up around 600, and there is a 5:00 bake time. The pizza has a hard crust on the bottom, and the cheese is melted and carmelized on top, but the center is kinda gouey. I imagine they have lost alot of customers as a result of this.
I have polled other stores in the past and find that most of the industry has a temp of 475, and 6:30 bake time. It seems a little hot still but it gets the job done, and the pizza centers arent gouey.