Insights | Dataweavers

The hybrid approach to Headless CMS: Transitioning to XM Cloud without disrupting your enterprise

Written by Dataweavers | Jun 2, 2025 6:10:57 AM

Migrating to a headless CMS architecture can feel like a massive undertaking, especially for enterprises managing complex digital ecosystems.

However, it doesn’t have to be an all-or-nothing shift. A hybrid approach enables organizations to move gradually, ensuring business continuity while adopting the flexibility of a composable architecture.

Whether you’re using Sitecore XM Cloud, Optimizely SaaS, or another headless CMS, a phased migration, site by site or path by path, is the most effective way to transition without downtime. This method allows enterprises to embrace headless at their own pace while maintaining control over security, compliance, and performance.

Phased Migration: A Smarter Path to Headless CMS

One of the most effective ways to migrate is through proxy-based routing at the ingress controller level. This allows organizations to split traffic between traditional and headless environments dynamically.

For example:

  • www.thewebsite.com/a → Headless CMS environment
  • www.thewebsite.com and www.thewebsite.com/b → Existing CMS

This flexible routing strategy ensures that certain sections of a site can be delivered via the new headless cms front end while others continue to rely on the traditional monolithic CMS. This approach extends to static assets, APIs, and content delivery, ensuring a seamless experience for users while allowing development teams to modernize in phases.

Many enterprises have successfully adopted this model, reducing complexity and de-risking their transition. It also allows IT teams to validate new headless cms implementations in real-world conditions without jeopardizing existing site stability.

Building the Foundation: Key Components to Start With

The typical starting point for a headless transition is to establish the core capabilities by connecting three essential components:

  1. The Headless CMS – The content repository that allows structured content delivery.
  2. The Head (Rendering Host) – A front-end rendering layer, such as Arc, that serves the experience.
  3. Search & DAM Solution – Essential for managing content discovery and digital assets efficiently.

By setting up this foundation first, organizations ensure a fully functional headless cms experience, enabling teams to manage, render, and deliver content efficiently before integrating further services.

Start Small, Scale Confidently

One of the most common pitfalls when moving to headless cms is trying to do too much at once. A smarter approach is to start small, whether with a microsite, a campaign page, or a low-traffic area, before scaling across the entire platform. This allows teams to refine their components, test integrations, and ensure performance before full deployment.

To accelerate this process, Dataweavers provides a pre-configured starter kit, enabling teams to start building immediately.

This includes:

  • A fully functional rendering host deployed in your Azure tenant
  • End-to-end DevOps automation, eliminating manual setup
  • Pre-configured security and a finely tuned CDN approach, ensuring optimal performance, compliance, and resilience from day one

By removing the need to configure infrastructure and deployment workflows manually, organizations can focus entirely on building high-performing digital experiences.

A Universal Strategy to Headless CMS beyond Sitecore XM Cloud and XM

This phased, hybrid approach isn’t limited to Sitecore XM or Sitecore XM Cloud, it applies to any DXP transitioning to a headless cms model. Whether you’re working with Optimizely, Adobe, Sitecore, or another platform, the ability to transition gradually while maintaining full infrastructure control remains essential.

This is where Arc provides a critical advantage, it ensures security, compliance, and enterprise-grade hosting while simplifying DevOps. Instead of forcing teams into an all-at-once migration, it provides a structured framework that supports both traditional cms and headless cms models simultaneously.

Expanding the Ecosystem: Becoming Fully Composable

Once the initial headless cms sites are operational, the next step is to extend the ecosystem by integrating additional composable services.

This includes:

  • CDP (Customer Data Platform) – Centralizing user data to enable personalization at scale.
  • Personalization & AI-driven experiences – Tailoring content dynamically based on user behavior.
  • Marketing Automation & Commerce – Connecting marketing workflows and transactional experiences seamlessly.

As your composable architecture evolves, adding these services ensures greater agility, richer experiences, and enhanced customer engagement.

Structuring Teams for Headless CMS Success

Transitioning to a headless architecture isn’t just about technology, it requires cross-functional collaboration between development, content, and marketing teams. Unlike traditional CMS models, where front-end and back-end work is tightly coupled, headless development thrives when front-end developers, content strategists, and marketers work closely together to ensure a seamless experience.

Enterprises should also invest in full-stack and front-end development skills, as headless platforms rely heavily on modern JavaScript frameworks and API integrations. Upskilling existing teams or bringing in specialists with expertise in React, Next.js, or Vue.js will be crucial to unlocking the full potential of a composable architecture. By fostering collaboration and enhancing technical capabilities, organizations can streamline their headless transition and accelerate innovation.

Unlock the Power of Composable Architecture

Moving to a composable architecture isn’t just about technology, it’s a fundamental shift in how digital experiences are delivered. Organizations that adopt a structured approach to headless gain agility, scalability, and long-term flexibility. However, as discussed in The Pathway to Composable, failing to plan properly can lead to integration bottlenecks and inefficient workflows. Similarly, Hidden Traps with Headless Apps highlights how rushed implementations can create unexpected performance issues.

By adopting Arc’s hybrid approach, enterprises can transition to headless efficiently and securely, without operational risk or unnecessary complexity.

Take the Next Step

If you’re considering a move to headless, a hybrid approach provides the safest and most efficient path forward. With Arc’s fully managed solution, flexible deployment options, and enterprise-grade security, your team can migrate confidently, without disrupting day-to-day operations.

Ready to start your headless journey?

Let’s talk.