Headless commerce separates the frontend presentation layer from the backend commerce engine. APIs connect them, allowing any frontend (website, mobile app, IoT, kiosk) to access commerce functionality.
Traditional versus headless: traditional platforms (Shopify, Magento) provide integrated frontend and backend. Headless platforms provide backend APIs only. You build or choose the frontend independently.
Headless benefits: unlimited frontend flexibility (any framework, any design), better performance (static/SSR frontends), omnichannel capability (one backend, many frontends), and independent frontend/backend deployments.
When headless makes sense: complex multi-channel requirements, need for custom frontend experiences beyond template limitations, high-traffic sites requiring edge-optimized performance, and large development teams.
When headless does not make sense: small businesses without development resources, simple stores where Shopify themes are sufficient, limited budgets (headless costs 2-5x more to build), and small teams needing quick iteration.
Headless commerce platforms: Shopify Hydrogen (Shopify backend), commercetools (enterprise API-first), BigCommerce (headless-capable), Saleor (open-source), and Medusa (open-source Node.js).
Frontend frameworks for headless: Next.js (most popular, excellent SEO), Remix (data-loading focus), Astro (content-heavy sites), and Hydrogen (Shopify's React framework). Next.js dominates headless frontend development.
Content management in headless: pair your commerce engine with a headless CMS (Contentful, Sanity, Storyblok) for marketing content, landing pages, and editorial commerce. Two APIs, one unified experience.
Performance advantages: static generation and edge delivery produce sub-100ms page loads globally. Performance directly impacts conversion rates: every 100ms of latency costs 1% of conversions.
Implementation timeline and cost: headless builds take 3-6 months and cost $100,000-500,000 for enterprise implementations. Factor in ongoing frontend maintenance costs that do not exist with traditional platforms.
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