A Spreadable widget is made up for two components: a referral overlay and standalone referral page. Your overlay launches when a referrer clicks on your Spreadable button. It allows your customers to refer you via email and social channels without ever leaving the page they’re on. Your referral page looks just like your overlay and can either be hosted on your own website or on http://spreadable.com. You’ll use your referral page when you want to send someone a direct link to your referral form.