It started off as a way for people to get info on cars via fax machine. You ask or enter the vehicle VIN and you get a report. If it was in a crash, in a flood,

It started off as a way for people to get info on cars via fax machine. You ask or enter the vehicle VIN and you get a report. If it was in a crash, in a flood, see if mileage matches actual odometer. It's all web-based now. https://en.wikipedia.org/wiki/Carfax,_Inc https://en.wikipedia.org/wiki/Carfax,_Inc.