Slippa script is a PHP Based advance marketplace script. Which allows its user’s to create a Digital marketplace in seconds. Slippa Marketplace currently supports Selling Domains, Websites & Online Businesses. Admin can easily customize all features of the marketplace through the admin panel itself therefore no programming skills are required. Slippa has many features that leading digital marketplaces does such as Domain Ownership verification, Real Time Google Analytics Reports, User Email Notifications for all user activities, fully functional Bidding System, Chat/Message System and etc.
Demo: https://codecanyon.net/item/slippa-domains-website-marketplace-php-script/26578548
source http://www.codelist.cc/scripts/243302-slippa-v31-domains-website-app-amp-social-media-marketplace-php-script-nulled.html