eCommerce platforms in decline: Why brands are replatforming to headless and composable stacks

Data from BuiltWith highlights an important shift in digital commerce. As of July 2025, Shopify powers around 3.91% of the top one million websites, while WooCommerce Checkout holds about 2.01%. This confirms the dominance of a few major platforms, even as their relative share evolves. At the same time, platforms such as BigCommerce reported a 6% year-over-year decline in active stores in Q2 2025.

According to additional figures cited by Malte Karstan on LinkedIn, based on BuiltWith data Q2 2025 showed sharper declines: Shopware down –44.2%, WooCommerce –18.5%, Shopify –9.1%, and a total market contraction of –17.2% among the top one million websites. These specific numbers have not yet been published by BuiltWith directly, so they should be read as indicative rather than definitive.

The bigger picture is clear: this is not a collapse of eCommerce demand but rather a restructuring of digital infrastructure. Brands are consolidating platforms, migrating to headless or composable stacks, and cleaning up non-performing sites in order to focus on long-term profitability.

The state of eCommerce platforms is in decline

The Q2 2025 numbers are striking: Shopware experienced a drop of 44.2%, WooCommerce declined by 18.5%, and Shopify registered a 9.1% decrease compared to the previous year. When combined, the overall contraction of the top one million websites using eCommerce platforms reached 17.2%.

It is important to clarify what these figures actually represent. The data, sourced from BuiltWith, tracks changes in technology stacks rather than revenue performance. A decline does not necessarily mean customers stopped buying online. Instead, it points to:

• Platform migrations: brands moving from one provider to another or toward custom solutions.
• Consolidation: enterprises standardizing on fewer platforms to reduce complexity and costs.
• Site deactivations: smaller or unprofitable D2C stores closing down.
• Stack evolution: adoption of headless and composable commerce architectures not captured under traditional platforms.

In other words, the decline of established platforms signals an inflection point in digital commerce. Businesses are no longer defining success solely by the choice of platform, but by the flexibility and profitability of the underlying architecture.

Why brands are replatforming

The decline across traditional eCommerce platforms does not reflect less consumer interest in online shopping. Instead, it highlights how brands are replatforming to meet new demands for flexibility, performance, and profitability. Three major shifts stand out:

1. Headless commerce adoption
Brands are moving away from monolithic systems and choosing headless commerce. By decoupling the front-end from the back-end, businesses gain the ability to deliver faster, personalized experiences across multiple channels, from websites to apps to in-store kiosks.

2. Composable stacks
Composable commerce allows companies to build their infrastructure with best-of-breed solutions. Instead of relying on a single platform for everything, brands integrate specialized tools for payments, personalization, search, or logistics. This modularity reduces dependency and improves scalability.

3. Custom and enterprise-grade solutions
Enterprises with complex operations are increasingly investing in custom-built stacks. These solutions provide deeper control over performance, data, and integrations while reducing long-term licensing costs.

Shopify, BigCommerce, and WooCommerce still play a central role for many businesses. However, the fastest-growing segment is now the API-first ecosystem, where composable and headless solutions redefine how commerce stacks are built.

Consolidation and cost efficiency

One of the strongest drivers behind the decline in traditional eCommerce platforms is consolidation. Large organizations are no longer running multiple fragmented stacks across regions or business units. Instead, they are standardizing on fewer platforms to cut costs, simplify maintenance, and strengthen governance.

This shift is partly economic. Rising acquisition costs and tighter margins mean that profitability has become the main metric of success, not simply traffic or gross merchandise volume. Companies are cleaning up abandoned stores, eliminating underperforming sites, and streamlining their infrastructure to ensure each platform delivers measurable ROI.

At the same time, consolidation reduces operational risk. By moving from several mid-sized platforms to a single scalable solution or even a composable stack built around best-of-breed tools, enterprises gain tighter control over data, customer experience, and long-term scalability. What looks like decline in platform adoption is, in reality, a recalibration toward efficiency and resilience.

Consolidation trends in eCommerce (illustrative examples)

The post-D2C question

The shift away from traditional D2C models reflects structural differences in global eCommerce strategies.

China as the marketplace model:

• Platforms like Taobao, Tmall, and JD.com dominate the landscape. Notably, 62% of total third-party marketplace sales among the world’s top 100 marketplaces are generated by these Chinese giants.
• Within China’s B2C segment, Tmall alone holds nearly 48% market share.

These figures show that standalone brand websites are rare in China, with most businesses operating through established marketplace ecosystems.

Western D2C persistence, but challenged

Western markets historically favor D2C independence, with platforms like Shopify and WooCommerce empowering brand-owned storefronts. However, rising customer acquisition costs and the dominance of marketplaces such as Amazon, Walmart, Zalando, TikTok Shop, and Temu are introducing pressure.

This sets up a strategic crossroads for brand leaders:

• Will standalone D2C storefronts remain viable?
• Or will a hybrid model, bringing together brand-owned D2C sites, marketplaces, and retail, become the new blueprint for resilience and growth?

The evidence suggests the latter. D2C won’t vanish, but it will become one channel among several in a balanced commerce portfolio, especially given how saturated and expensive digital advertising has become post-2020.

Implications for brand strategy

The decline in traditional platform adoption is not a signal of collapsing eCommerce, but a trigger for brands to redefine what success in digital commerce looks like. Several implications stand out:

1. Platform is no longer the core strategy

Owning a Shopify, WooCommerce, or Magento store is not enough. Success depends on how well the stack integrates across channels and supports long-term profitability.

2. Profitability over volume

During the 2020–2022 boom, brands prioritized traffic and expansion. Rising acquisition costs and fierce competition now put the focus on sustainable margins and lifetime value.

3. Hybrid is becoming the default

Combining D2C control with marketplace scale is emerging as the most sustainable model.

• Nike has partnered with Zalando and JD Sports, allowing customers to connect Nike Membership with marketplace accounts to unlock exclusive products and digital experiences.
• L’Oréal remains active on its brand sites but has become one of the top-selling beauty brands on Tmall, leveraging Alibaba’s ecosystem to drive billions in Singles Day revenue and to deploy AI-driven customer experiences.
• Adidas continues to invest heavily in D2C but has also committed to a hybrid strategy. Its “Own the Game” plan projects that 50% of revenues will come from D2C by 2025, underscoring the balance between owned channels and marketplace distribution.

4. Data ownership as a competitive edge

Marketplaces limit direct access to customer data. Maintaining a D2C channel ensures brands can capture insights to drive personalization and retention, while still benefiting from marketplace reach.

5. Timing is critical

Replatforming, consolidation, or hybrid adoption should not be reactive moves. Brands that anticipate shifts and align tech infrastructure with business goals will capture market share while competitors are still restructuring.

Shopify’s position in the shift

Despite recording a year-over-year decline in Q2 2025, Shopify remains one of the strongest players in the eCommerce ecosystem. Its resilience comes from its ability to adapt to the hybrid model that is shaping the industry’s future.

Shopify as the hybrid anchor
Shopify has moved beyond being a standalone D2C platform. With marketplace integrations, social commerce extensions, and omnichannel POS systems, it enables brands to unify operations across channels while maintaining control of customer relationships.

Enterprise consolidation through Shopify Plus
For larger organizations managing multiple brands or markets, Shopify Plus offers scalability and efficiency. It allows businesses to consolidate operations into one infrastructure, reducing overhead and accelerating market entry.

Composable flexibility
Through its API-first approach and a mature app ecosystem, Shopify can also serve as a central component in composable commerce strategies. This allows enterprises to integrate best-of-breed tools for CMS, personalization, or logistics while relying on Shopify for the core transaction engine.

Shopify’s versatility explains why, even in a period of decline, it continues to be a cornerstone for businesses looking to balance independence with scale.

What does this mean for the future of commerce?

The decline of traditional platforms is not an end, it marks the beginning of a more complex, hybrid era of digital commerce. Brands are no longer asking whether D2C or marketplaces will dominate. The real question is how to combine channels, technologies, and business models to create a resilient growth engine.

The hybrid model takes center stage
Future-ready brands will operate across three fronts:

• D2C to retain data ownership and deliver personalized experiences.
• Marketplaces to capture scale and traffic where customers already shop.
• Retail and omnichannel to integrate physical presence with digital convenience.

Replatforming as an enabler
This evolution requires a flexible foundation. Whether through Shopify Plus, composable commerce, or custom stacks, replatforming is becoming a strategic necessity rather than a technical afterthought. The goal is to simplify operations, improve profitability, and ensure agility in a fast-changing environment.

Flatline’s proven track record
At Flatline, we’ve seen firsthand how strategic replatforming enables growth:

• Capital C embraced a replatforming and rebranding initiative that modernized its identity and streamlined its digital presence.
• CTP executed a global replatforming and digital transformation, consolidating its online infrastructure into a cohesive, multilingual experience across 15+ countries.

These projects illustrate what the future of commerce demands: bold replatforming decisions, smart consolidation, and infrastructures designed for hybrid growth.

Rethinking your commerce stack starts now

The decline of major eCommerce platforms is a signal that the market is maturing. Hybrid models, composable infrastructures, and smarter consolidation are shaping the next chapter of digital commerce. The question is not whether your business should adapt, but how quickly.

Flatline has guided brands through replatforming, consolidation, and global transformation, ensuring their digital infrastructure is built for both today’s challenges and tomorrow’s opportunities. Whether it is scaling with Shopify Plus, adopting composable solutions, or executing multi-market rollouts, we help brands stay ahead of change. Our ecommerce agency team can help you decide whether your next move is a full replatform, a composable layer, or simply a leaner Shopify Plus setup.

Ready to future-proof your commerce stack? Get in touch with our team to explore how we can design the right strategy for your next chapter.