There are many different types of ways that a windshield can be cracked. There is a crack known as the “spider crack” that is usually caused when a windshield is hit by a rock or small and hard object. Another type of crack is a huge crack that goes across the windshield. This can be caused by a car accident or if a car hits a bigger object. The cracks usually vary on the type of object that hits the windshield, and how hard the object hits the windshield.