Abstract: The present invention relates to a web-based method for linking websites using an affiliate program through an affiliate program server, said method comprising acts of linking a referral URL(s) to an affiliate account, where the URL(s) is submitted by affiliate or merchant and approved by the merchant; clicking product(s) and/or service(s) on an affiliate website by user; redirecting the user to a suitable merchant website based on his selection of the product (s) and/or service(s); retaining the referral URL in web browser cookie for the redirected user and sending the referral URL to the affiliate program server to credit click, if the referral URL is linked to an unique affiliate account; and pushing the referral URL from the cookie to the affiliate program server by the merchant website as the user transacted by ordering the product (s) and/or service (s) and thereafter applying commission by the affiliate program, if the referral URL is linked to the unique affiliate account.