Mastering the One-Two Punch: Why Ecommerce Brands Are Prioritizing Domain Growth While Leveraging Amazon Spillover

The modern ecommerce landscape is undergoing a strategic realignment as merchants move away from platform-dependency toward a more diversified, hybrid model. Sean Stone, a veteran Amazon consultant and the founder of Spillover Commerce, is at the forefront of this shift, advocating for a "one-two punch" strategy that balances the brand-building potential of independent domains with the immense logistical trust of the Amazon marketplace. This approach, which emphasizes developing a profitable branded website as the primary engine for growth while utilizing Amazon to capture inevitable "spillover" traffic, represents a sophisticated evolution in how direct-to-consumer (DTC) brands navigate the complexities of digital retail.

The Dual-Platform Imperative

The core of Stone’s philosophy lies in the recognition that the strengths of a branded Shopify site and the Amazon marketplace are fundamentally different and, when managed correctly, highly complementary. For years, the ecommerce world was divided into two camps: the "Amazon-first" sellers who prioritized high-volume, data-driven commodity sales, and the "DTC-first" brands that focused on storytelling, customer data, and brand equity. Stone argues that the most successful contemporary brands are those that bridge this gap.

A branded site serves as the "punch one" of the strategy. It is the home of the brand’s identity, offering the full product catalog, exclusive bundles, and a direct line of communication with the customer. However, Stone notes that even the most successful DTC campaigns will see a portion of their potential customers migrate to Amazon to complete their purchase. This "spillover" occurs because of the deep-seated trust consumers have in Amazon’s fulfillment infrastructure and return policies. Rather than fighting this migration, Stone suggests that brands should embrace it as "punch two," ensuring that when a customer searches for their brand on Amazon, they find a controlled, high-quality representation of the product.

Evolution of a Strategy: From Stone’s Goods to Spillover Commerce

The trajectory of Sean Stone’s career mirrors the broader shifts in the ecommerce industry. Stone began managing Amazon advertising campaigns in 2017, a period characterized by the rapid professionalization of the Amazon Seller Central ecosystem. Initially working within an agency framework before launching his own firm, Stone’s Goods, in 2021, he witnessed firsthand the limitations of being an Amazon-only seller.

In January 2024, Stone rebranded his agency to Spillover Commerce to better reflect this new strategic reality. The rebranding signifies a move away from simply managing marketplace listings toward a holistic consulting model that helps Shopify-based brands capture lost revenue on Amazon. This evolution is driven by the data-backed reality that Amazon remains "too big to ignore," currently accounting for nearly 40% of all US ecommerce sales. For many brands, failing to have a presence on Amazon is not just a missed opportunity; it is an invitation for competitors or unauthorized third-party sellers to fill the void and potentially tarnish the brand’s reputation.

The Anatomy of the One-Two Punch

To execute the one-two punch effectively, Stone outlines a strategy that prioritizes the independent domain for profitability and the marketplace for conversion. The objective is to drive 60% of revenue through the brand’s own domain, where profit margins are generally higher and customer data is accessible, while allowing Amazon to generate the remaining 40%.

The implementation of this strategy requires platform-specific offers. Stone advises against selling identical product configurations on both platforms. Instead, he suggests that Amazon should feature "secondary" items or entry-level versions of a product. This prevents the marketplace from cannibalizing the premium experience offered on the brand’s own site. For example, a brand might sell a comprehensive "starter kit" or a high-value bundle on its Shopify site, while offering a single, more commoditized component of that kit on Amazon. This approach satisfies the Amazon shopper’s need for convenience while providing a clear incentive for loyalists to shop directly with the brand.

Case Study: The Gymreapers Methodology

A poignant example of this strategy in action is the fitness apparel and equipment brand, Gymreapers. Despite competing in the highly commoditized market of weightlifting wrist straps—where dozens of white-label Chinese manufacturers offer similar products at lower prices—Gymreapers manages to generate significant revenue on Amazon while maintaining a premium brand image.

According to Stone’s analysis, Gymreapers’ success is not a result of Amazon-native SEO alone. Instead, the brand runs approximately 200 active Meta (Facebook and Instagram) ads that direct traffic to high-priced powerlifting bundles on their own website. While these ads are designed to drive DTC sales, they inevitably increase brand awareness. A segment of the audience, perhaps deterred by shipping costs or seeking the security of Amazon Prime, will go to Amazon and search for "Gymreapers."

By having a strong presence on Amazon, Gymreapers captures this "spillover" traffic. They are able to sell their wrist straps for nearly double the price of their competitors because the consumer is searching for the brand, not just the commodity. This illustrates the power of external traffic in driving marketplace success; the brand building happens on social media and the domain, but the harvest occurs across both platforms.

Navigating the Amazon Trust Factor

A recurring tension in the ecommerce space is the fear that Amazon’s marketplace environment—often cluttered with "junk" products and aggressive price-cutting—will devalue a premium brand. Eric Bandholz, founder of Beardbrand and a prominent voice in the DTC community, has voiced concerns that the Amazon experience can "trash" a brand’s carefully cultivated image.

Stone acknowledges these risks but argues that they are outweighed by the "insurmountable" trust consumers place in Amazon’s logistics. For many shoppers, the guarantee of two-day shipping and a "no-questions-asked" return policy is more important than the aesthetic experience of the checkout process. To mitigate brand dilution, Stone recommends that merchants view Amazon as a customer acquisition or retention tool rather than a brand-building tool. By providing a "version" of the product on Amazon, the merchant meets the customer where they are without compromising the integrity of the full brand experience hosted on their own domain.

Strategic Bundling and Conversion Optimization

One of the more technical aspects of Stone’s advice involves the use of bundles on Amazon. In the DTC world, bundling is a primary lever for increasing Average Order Value (AOV) and improving profit margins. However, Stone warns that bundling often fails on Amazon because the platform’s algorithm is heavily weighted toward conversion rates.

"What drives organic ranking on Amazon is the conversion rate," Stone explains. A single, clear offer typically converts at a much higher rate than a complex bundle. On Amazon, a product detail page (PDP) that focuses on one high-converting item will climb the search rankings faster than a page trying to sell a multi-part kit. Therefore, the strategic play is to keep Amazon listings simple and high-converting to maximize organic visibility, while reserving complex, high-margin bundles for the brand’s own website.

The Meta Market Fit: When to Go Beyond the Marketplace

For Amazon-first sellers looking to diversify into DTC, Stone identifies three critical requirements. First is "Amazon product-market fit," which most established sellers already possess. The second, and more difficult, is "Meta market fit."

Not all products that succeed on Amazon will succeed on social media. Stone notes that commodity items—like a standard mop—rarely perform well in Meta advertising because they lack the "stop-the-scroll" visual appeal or unique problem-solving narrative required for social commerce. Conversely, a "cool robot vacuum" has the visual interest and technological hook to thrive on Facebook or TikTok. Sellers must evaluate whether their product has the inherent qualities to benefit from paid social discovery before investing heavily in an independent domain.

Supporting Data and Market Trends

The shift Stone describes is supported by broader industry data. According to recent reports from eMarketer, while Amazon continues to dominate, the growth of "Social Commerce" and "DTC" is outpacing traditional marketplace growth in certain categories. Furthermore, a study by Jungle Scout found that 52% of consumers start their product searches on Amazon, but nearly 20% of those consumers will visit a brand’s direct website before making a final purchase to check for better prices, more information, or authenticity.

This behavior confirms the "spillover" effect. Additionally, the cost of advertising on Amazon (CPC) has risen steadily, with some categories seeing a 20% year-over-year increase. This makes the "one-two punch" even more vital; by driving external traffic (which Amazon often rewards with higher rankings), brands can reduce their reliance on expensive Amazon Internal PPC.

Broader Impact and Implications

The implications of the Spillover Commerce model extend to the very valuation of ecommerce businesses. In the current market, "Amazon-only" businesses are often valued at lower multiples by aggregators and private equity firms due to the "platform risk" of being dependent on a single entity. Brands that demonstrate a healthy mix of DTC and marketplace revenue are seen as more resilient and valuable.

Stone’s approach also highlights the changing role of the ecommerce agency. The "Amazon agency" of the future is not just about keyword optimization and PPC management; it is about holistic channel management and understanding the psychological journey of the consumer across the entire internet.

As the digital marketplace becomes increasingly crowded, the ability to build a brand that exists independently of any single platform—while still expertly navigating the world’s largest marketplace—will be the defining characteristic of the next generation of ecommerce leaders. By treating Amazon as a secondary, high-trust fulfillment channel and the branded domain as the heart of the business, merchants can create a sustainable, profitable, and defensible retail ecosystem.