A Digital Experience Platform (DXP) is a federated stack of best-of-breed services that together deliver the customer-facing web + content experience. Unlike a monolithic CMS, a DXP composes: a headless CMS (Contentful, Sitecore XM Cloud), a DAM (Cloudinary, Bynder), a search engine (Algolia, Elastic), a front-end framework + host (Next.js + Vercel), a CDP (Segment, RudderStack), and a commerce platform (Shopify Plus, Adobe Commerce).
The integration spine -- documented webhooks + APIs between each pair -- is the architecture that makes the DXP coherent. Without it, each service does its job well but the editorial team experiences four logins, three search boxes, and no unified preview.
For enterprises in 2026, the composable DXP is the dominant pattern. Monolithic Sitecore XP / Adobe AEM is still defensible at very large scale but the operational + cost overhead has pushed most new builds toward the composable shape.