DealerOn | 23,617 followers on LinkedIn. Award-winning Car Dealer Websites, Social Media Marketing, SEO, and Digital Advertising for auto dealerships. | DealerOn has been the perfect partner for over 7,000 dealers across North America. Be it award winning websites, a proven SEO architecture or the very best in human-touch SEM, DealerOn consistently delivers upon the very promise that their clients give to their customers. The promise of coming through with what they say they will.