Is Link World a verified business? I want to know the verification details of linkworld.us. Can anyone help?

Hello friends, I want to submit my website link on linkworld.us But this site is not free. So before purchase any plan, I want to know the details information of their business details. Here I have seen 2 plan monthly and yearly. Suppose, I have bought a yearly plan but before 1 year the website closed, then what can I do? That's why, I want to know the details information before purchage any package. Is Link World a verified business? I want to know the verification details of linkworld.us. Can anyone help?