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Drupal vs WordPress vs AEM vs Headless: The 2026 Enterprise CMS Buyer’s Guide

Replatforming from Sitecore? Stuck choosing between AEM and headless? Reconsidering Acquia DXP? Here is what actually decides the 2026 CMS buy.
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Drupal vs WordPress vs AEM vs Headless: The 2026 Enterprise CMS Buyer’s Guide

Enterprise buyers across higher education, healthcare, government, financial services, and B2B are asking the same questions in 2026: Is composable still the answer? When does MCP-readiness become a non-negotiable RFP requirement? Why are 78 percent of enterprise AI teams already running MCP-backed agents in production? When does AEM earn its $3M to $12M five-year cost, and when does it not? This 30-page ebook compares Drupal CMS 2.0, WordPress VIP, Adobe Experience Manager, and the headless field across the ten dimensions that decide the next decade of your digital operations.

What Will You Learn?

This eBook covers essential topics including:

  • Why “AI roadmap” is no longer a credible vendor answer.
    See how MCP, agentic workflows, and the bot-majority web made AI a 2026 RFP requirement.
  • What today’s enterprise actually requires from a CMS.
    Learn the ten evaluation dimensions that decide the buy, including MCP-readiness and agent-first content.
  • Where each platform genuinely earns its place.
    Drupal CMS 2.0, WordPress VIP, AEM at its real price tier, and the headless field, with a verdict for each.
  • The real five-year cost picture beyond the license.
    Why AEM lands at $3M to $12M for tier-1 buyers, and why the headless tax pushes TCO to 2x the license.
  • Who is leaving Sitecore, where they go, and why?
    The legacy DXP exit dynamic reshaping 2026 buys, with Optimizely’s 50+ migrations and best-fit destinations.
  • The 10 RFP questions that change every vendor conversation.
    From MCP server exposure to the CSRD digital carbon, the questions that separate ready vendors from the rest.

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