What is primarily damaged on carfax?

Carfax primarily reports damage related to a vehicle's history, such as accidents, flood damage, fire damage, and issues related to title branding (like salvage or rebuilt titles). It compiles data from various sources including insurance companies, repair shops, and state motor vehicle departments. This information helps potential buyers assess the condition and history of a used vehicle before making a purchase. However, it's important to note that not all damage may be reported, so a Carfax report should be used as one tool among others when evaluating a car's condition.