I need to look up VINs to check the status of a report.
However, there are thousands of them, so I want to know if it is possible to perform an HTTP request on the website instead of using the user interface.
Here are your options to get data from thousands of VINs:
Get official bulk access by contacting them directly. If you need the data for some real purpose, then they may provide read data access. In such a case, you can proceed with HTTP Request.
UI Automation to directly fill in the first form and then extract the data for 1 vehicle at a time.