How can I ask for user details on the checkout form?

[Lokesh]

Either Paypal or Stripe is fine, but I'll need a user's email and URL of their website (for a service I'm offering) to process their order from my landing page and was wondering how I could essentially gather these form elements whilst taking payment?

Any help would be appreciated!

[Randy]

According to the Baymard Institute, a mandatory requirement for creating an account is one of the top reasons why people abandon the process of purchasing. Don’t make such mistake! Allow users to purchase without creating an account. It’s essential not only to provide guest checkout option but also make it clearly visible. Baymard Institute found that 88% of mobile checkouts forms fail to make the guest checkout option clearly visible, so users often overlook it.