What do you have in mind for the style and theme of the landing page?
Very simple design. White background. Designed to be immediately understandable and drive conversion.
Elements to include in the landing page
The main call to action should be the VIN text box where the user has to type in a 17-digit VIN (Vehicle Identification Number). The button should say "Decode Now" or "Go" or something like that. It should be very clear an intuitive what we do.
Below the input area should be the results, which show up on the same page.
There should be advertising display ads around the outside of the page, but nothing too distracting.
At the bottom of the page we need prominent wording to say "Have a large volume of VINs to decode? Use our API". Beside that text should be a "Try for Free" button.
The focus should be on enticing the user to put in their VIN and submitting the button. Our value to them should be very clear with the output we'll provide (see attached mockup).