How to use the online timer
Twelve minutes suits a home oven at a high domestic temperature, which is nowhere near the ferocious heat of a wood-fired oven that cooks a pizza in ninety seconds — most kitchen ovens simply can't get there, so a longer bake at the highest setting your oven offers is the realistic substitute. Preheating properly matters more here than with almost anything else: give the oven, and especially a pizza stone or steel if you're using one, a full twenty minutes to come up to temperature before the pizza goes anywhere near it.
Position inside the oven changes the outcome more than people expect. A rack near the bottom third gets more direct heat to the base, which helps if your crust usually comes out pale, while a higher rack favours the toppings and cheese browning before the base has caught up.
Look for a deeply golden, blistered crust with dark leopard-spotting rather than an evenly pale one, and cheese that's fully melted with a few browned spots rather than just soft. If the top is done before the base has crisped, dropping the pizza directly onto the oven floor or a preheated stone for the last minute usually closes that gap.
Common questions
Why does my homemade pizza never get that charred, blistered crust?
Home ovens rarely reach the extreme heat of a wood-fired oven. Preheating a stone or steel for a full twenty minutes at your oven's highest setting gets you closer than any other single change.
My base is soggy but the cheese is already browned — what went wrong?
Try a lower oven rack so the base gets more direct heat, or finish the last minute with the pizza directly on the oven floor or a preheated stone.