Yes. Link By Stripe is a product offered to merchants to help customers simply the payment process. (See https://stripe.com/en-my/payments/link) The domain “Link.com” is itself is explicitly mentioned (and hyperlinked) at https://docs.stripe.com/payments/link. Don’t take our word for it. Verify for yourself by visiting  https://docs.stripe.com/payments/link and searching for “link.com”. A screenshot is also provided below: