There is a quiet trend in e-commerce projects: merchants paying twice as much for half the result, because someone sold them on going headless when a good theme would have been fine.
Headless is a powerful pattern. It is also a serious commitment. Here is how we think about it.
When a theme-based build is the right call
Most stores under €5M in revenue, with a single market and a relatively standard catalogue, are best served by a Shopify theme or a well-built WooCommerce site. The reasons:
- Time to revenue. A polished themed store ships in weeks, not quarters.
- Lower total cost. No separate frontend codebase to maintain.
- The merchant team can self-serve. Adding a section, swapping a banner, launching a campaign - all without engineering.
- The platform’s roadmap works for you. New checkout features, new payment methods, new performance improvements arrive automatically.
If the bottleneck is conversion and merchandising, not technology, a great themed store will outperform a mediocre headless one every time.
When headless actually pays off
Going headless is justified when one or more of these is true:
- Performance is a genuine differentiator. You compete on speed, your funnel data shows it, and you are willing to invest to keep it.
- Multi-brand or multi-region complexity. One backend, several distinct frontends.
- A brand-led storefront. Editorial commerce, immersive PDPs, content that does not fit a theme grammar.
- Significant non-commerce surface area. A community, a content hub, a B2B portal living alongside the shop.
- Real frontend engineering capacity. Either in-house or via a long-term partner. Headless without engineering is an unfinished house.
The honest test: is there a measurable, ongoing reason that a themed store cannot meet, that justifies a permanent additional cost? If not, stay on the platform.
The expensive middle ground
The worst outcome is going headless for status reasons, then having no engineering capacity to maintain it. The site freezes. Every campaign requires a developer. Performance regresses because no one is tuning it. You end up paying SaaS fees, agency fees, and infrastructure fees, for less velocity than you had on the original theme.
If you cannot commit to keeping a headless storefront alive, do not start one.
A pragmatic rule
Default to a great themed build. Earn the right to go headless by hitting the limits of the platform with a real, measurable reason. The merchants who win this decade are the ones who stay obsessed with conversion, fulfilment, and brand - not the ones with the most fashionable stack.
Tags