Dealer.com vs DealerOn: Which Website Platform for Dealerships?

Quick Verdict

Both Dealer.com and DealerOn can build you a solid dealership website, but the choice comes down to what you value more: ecosystem integration or independent speed. Dealer.com is the right call if you already use Cox Automotive products — Autotrader, KBB, vAuto, or VinSolutions — because the native integrations save you time, money, and headaches. DealerOn wins for dealers who want a fast-moving independent platform, measurable lead guarantees, and a track record of customer satisfaction that's hard to argue with.

There's no wrong answer here. Both platforms serve thousands of dealers. But they go about it differently, and those differences matter.

What Each Platform Does

Dealer.com (Cox Automotive)

Dealer.com started in 1997 in Burlington, Vermont, as a standalone dealership website company. It grew into one of the largest website providers in the industry before being acquired by Cox Automotive — which itself is a subsidiary of Cox Enterprises, a $20B+ privately held conglomerate. Today Dealer.com operates as the website and digital marketing arm inside the Cox Automotive family, which includes Autotrader, Kelley Blue Book, Manheim, vAuto, VinSolutions, Dealertrack, Xtime, and NextGear Capital.

That parentage is the single most important thing to understand about Dealer.com. It isn't just a website company. It's a gateway into the Cox Automotive data and services ecosystem. When a shopper visits a Dealer.com-powered dealership website, that visit feeds into a data network that spans Autotrader classifieds, KBB valuation lookups, Manheim auction transactions, and vAuto inventory analytics. Every click, every search, every price comparison becomes part of a feedback loop that dealerships can use to price vehicles, target ads, and manage inventory more effectively.

Dealer.com's product structure breaks into four main areas:

• Dealership Websites — Digital Storefront (responsive website platform), OEM Programs (manufacturer-compliant templates and features), and Analytics
• Managed Services — Website Management, SEO & GEO (local search), Content & Creative, Social & Reputation Management
• Advertising — Display & Retargeting, SEM/Paid Search, Video, and Social Media campaigns
• Digital Retailing — Dealer.com's own Digital Retailing tool and the newer Cox Automotive Deal Central platform (still in early rollout)

DealerOn

DealerOn was founded around 2004 by brothers Ali Amirrezvani (current CEO) and Amir Amirrezvani. Based in Rockville, Maryland, the company has grown to roughly 750 employees and now serves over 7,000 dealerships and dealer groups across North America. It is privately held and independently operated — no conglomerate parent, no automotive auction house behind it, just a pure-play website and digital marketing company.

What makes DealerOn's growth trajectory noteworthy is that they've achieved 7,000+ dealer relationships without the advantage of a captive ecosystem. Every dealer they sign is a competitive win against a bigger player — either Dealer.com, a CDK/FordDirect platform, or a smaller regional provider. That has forced them to compete on product quality, conversion performance, and service responsiveness rather than on bundling or cross-sell leverage.

DealerOn's product lineup:

• Cosmos Website Platform — Their flagship website platform. Responsive, mobile-first, built around the car-buying user experience. Integrates lease and finance payment displays natively and works with third-party digital retailing tools.
• Elite SEO — Dedicated local search optimization with a team-based approach, targeting local-market keywords, VDP pages, and service lane searches.
• Digital Advertising — Full-funnel SEM, display, retargeting, social, and video managed campaigns.
• OnPrompt AI — A newer AI-powered tool for dealerships, announced via press release. (Details are still emerging.)

DealerOn's tagline — "Results. Guaranteed." — is backed by documented lead measurement during onboarding. They track the exact lead increase a dealer gets after switching to their platform and share that data.

Feature Comparison Table

Pricing Comparison

Neither Dealer.com nor DealerOn publishes pricing publicly. This is standard in the dealership website space — pricing varies by rooftop count, feature set, OEM program participation, and contract length.

Here's what we can say with confidence:

Dealer.com tends to run at the higher end of the market. You're not just paying for a website — you're paying for access to the Cox Automotive data ecosystem, OEM program compliance templates, and the ability to connect everything under one billing relationship. If your dealership already spends money on Autotrader, KBB, vAuto, or VinSolutions, bundled pricing can offset the individual line items. For a standalone dealer not using any other Cox products, the price may be harder to justify.

DealerOn positions itself as a performance-driven alternative at a more accessible price point. They don't publish base prices, but multiple dealer testimonials reference significant lead increases (150%+ on average) that justify the monthly investment. The onboarding includes documented lead measurement, so you can see exactly what your ROI looks like in the first 90 days. Multiple industry awards across categories (2x, 9x, 3x, and 2x winners in different award programs) suggest consistent performance across a broad client base. Dealers switching from other platforms to DealerOn commonly report lower total costs combined with higher lead volume — though you should verify this with dealer references in your specific market.

For both platforms, expect to pay between $1,500 and $5,000+ per month per rooftop, with advertising spend on top. Negotiation is expected, and multi-rooftop groups get significant discounts on both sides. Contract terms typically run 12-36 months. We recommend getting itemized proposals from both and comparing not just the website cost but the bundled advertising management, SEO, and content fees.

Contract termination terms differ meaningfully between the two. Dealer.com, as part of the larger Cox Automotive organization, has standardized enterprise contracts that are harder to negotiate out of if things go south. DealerOn's contracts, by contrast, reflect their independent roots — many dealers report more flexibility in termination and service-level adjustments, particularly for multi-rooftop groups.

Use Case Fit: When Dealer.com Wins

You already use Cox Automotive products. If your dealership runs vAuto for inventory, VinSolutions for CRM, and advertises on Autotrader, Dealer.com eliminates integration friction. In-vehicle image syncs, real-time KBB pricing on your VDPs, Autotrader listing feed management — these things work better when they're in the same building. Cox Automotive Deal Central, their unified platform, is designed to make these connections even tighter going forward.

OEM program compliance is your top priority. Cox Automotive has deep relationships with manufacturers. Dealer.com is a preferred or certified provider for many OEM website subsidy programs, and their templates are pre-built to meet OEM requirements. If you're opening a new franchise and need to hit a manufacturer's digital standards on day one, Dealer.com's OEM teams know exactly what that checklist looks like.

You want one throat to choke. Some dealer groups prefer a single vendor relationship for websites, CRM, inventory, and advertising. Dealer.com, backed by Cox Automotive, can be that single point of contact. One login, one support number, one invoice.

You care about data scale. Cox Automotive processes data from millions of vehicle transactions, auction sales, and consumer shopping sessions. Dealer.com's analytics products — especially within Cox Automotive Deal Central — draw from that data pool. For data-driven dealers who want market-level insights beyond their own website metrics, that's a meaningful differentiator.

Use Case Fit: When DealerOn Wins

You want an independent platform that moves fast. DealerOn is a technology company first and foremost. They're not part of an auction house, a classifieds business, or a financial services conglomerate. Their Cosmos platform team can release updates, test conversion improvements, and roll out new features without coordinating across a dozen business units. This speed matters when you're competing for every lead.

You want a guarantee. DealerOn puts its money where its mouth is. They document lead increases during onboarding and share that data with you. The average sits at 150%+, according to the company. For a dealer who's been burned by vague promises from other vendors, that documented approach carries real weight.

Customer service matters more to you than ecosystem size. DealerOn talks a lot about their 99% satisfaction rating and their support philosophy — "you aren't a number in a queue or an email address to us." That's the opposite of what some dealers experience with larger, more bureaucratic providers. If you've had bad experiences with vendor support, DealerOn's approach is worth evaluating.

You have a diverse tech stack. DealerOn's Cosmos platform uses an "open retailing" approach that works with whatever digital retailing tool you prefer (Roadster, ELEAD, ProMax, etc.) and integrates broadly with third-party systems. If you've already invested in a CRM or DMS you like and just need a great website on top, DealerOn won't try to upsell you into a full ecosystem.

OEM Program Compliance

Both platforms have extensive OEM certification programs.

Dealer.com benefits from Cox Automotive's existing OEM relationships. Because Cox provides data, wholesale, and financial services to manufacturers directly, Dealer.com has inside-track access to OEM program requirements, templates, and subsidized website programs. If you're opening a new dealership or need to maintain complex multi-franchise compliance across different OEM programs, this is a genuine advantage.

DealerOn is a certified partner for 30+ OEMs including Acura, Alfa Romeo, BMW, Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ferrari, Fiat, Ford, Genesis, GMC, Honda, Hyundai, Infiniti, Jaguar, Jeep, Kia, Land Rover, Lexus, Lincoln, Maserati, Mazda, Mercedes-Benz, Mini, Mitsubishi, Nissan, Porsche, Ram, Rolls-Royce, Subaru, Toyota, Volkswagen, and Volvo. That list covers virtually every major brand selling vehicles in North America. They provide websites, SEO, and digital advertising for any OEM — not just the ones on the certified list.

Bottom line: both platforms can handle OEM compliance. Dealer.com has deeper OEM relationships through Cox; DealerOn has a broader partner list. Neither will leave you unable to meet manufacturer requirements.

Winner Callouts

The Bottom Line

Dealer.com and DealerOn are two of the best website platforms in automotive, and you can't go wrong with either one if it aligns with your dealership's existing tech stack and priorities.

If you're a Cox Automotive shop — running vAuto, VinSolutions, using Autotrader and KBB — Dealer.com is the obvious choice. The native integrations will save you time, reduce errors, and likely deliver a better ROI than a standalone website platform. The Cox ecosystem is deeply embedded in automotive retail for a reason: it works, and it works better when everything connects.

If you're an independent operator — or you've deliberately avoided being locked into the Cox ecosystem — DealerOn is the strongest alternative on the market. Their Cosmos platform is competitive on features, their customer satisfaction numbers are excellent, and their willingness to guarantee and document lead increases sets them apart from nearly every other website vendor. At 7,000+ dealers and growing fast, they're not a small player anymore.

Whichever path you choose, the most important step is the same: get references from dealers in your market segment. Ask a single-rooftop dealer how onboarding went. Ask a 15-rooftop group how the support relationship holds up at scale. Ask a dealer in your brand mix how OEM compliance actually works day-to-day. Both Dealer.com and DealerOn will happily provide references — and a smart buyer calls them.

The best advice: take a demo of both. Ask Dealer.com to show you exactly how vAuto and VinSolutions integrate. Ask DealerOn to show you documented lead increases from dealers in your market with your brand mix. The platform that gives you the most specific, data-backed answers is probably the right one for your dealership.