No, you do not require a VIN at time of placing your order, though you will need to enter a valid VIN for your order within 180 days of your purchase to obtain a Vehicle History Report for a vehicle.
If entering a VIN after purchase: from your order confirmation email, click "Access Your Order" and then enter a valid VIN to redeem your report.
Lost or can't find your order confirmation email? Please see: How do I find my order confirmation email?
Just make sure you redeem your report(s) with a VIN within 180 days of purchase of your order will expire. We will send you a friendly email reminder when you have 30 days and 7 days remaining to run and un-redeemed report(s).
For more information on supported/invalid VINs, please see: What does the "We couldn't verify your VIN" message mean?