Adobe Experience Manager (AEM) is an enterprise content management and digital experience platform used by large organisations for websites, digital asset management, and multi-channel content delivery. AEM's component-based architecture and content fragment system give authors and developers extensive flexibility - but accessibility depends on how components are built, configured, and composed. Under the EAA, any AEM site serving EU consumers must meet EN 301 549 requirements.
Common Adobe Experience Manager accessibility issues
Core Components have accessibility gaps in configuration
AEM's Core Components provide a reusable component library with some accessibility support. However, components are only as accessible as their configuration - an Image component without alt text, a Title component at the wrong heading level, or a Teaser component with generic link text all produce WCAG failures despite using 'accessible' components.
Custom components lack consistent accessibility standards
AEM projects typically include dozens of custom components built by development teams. Without enforced accessibility coding standards, custom components have inconsistent ARIA usage, varying keyboard support, and different approaches to focus management - creating an uneven accessibility experience across a single site.
Experience Fragments and Content Fragments lack accessibility validation
AEM's Experience Fragments (reusable page sections) and Content Fragments (structured content) are published across multiple pages and channels. An accessibility issue in a fragment is replicated everywhere it's used, and there's no built-in validation to catch issues before publication.
Rich Text Editor content is author-dependent
AEM's Rich Text Editor allows content authors to create freeform content. Without RTE configuration to restrict formatting and enforce structure, authors produce content with skipped headings, images without alt text, tables without headers, and styled text without semantic meaning.
Multi-site Manager creates testing scale challenges
AEM's Multi-Site Manager (MSM) lets organisations manage multiple sites from shared blueprints. Localised sites may have different content, components, and configurations - each with potentially different accessibility issues. A blueprint might be accessible, but a localised live copy might not be.
Client-side JavaScript layers add dynamic accessibility concerns
AEM sites often include client-side JavaScript for personalisation (Adobe Target), analytics (Adobe Analytics), and interactive features. These JavaScript layers inject and modify DOM content without accessibility validation, potentially introducing focus traps, unannounced content changes, and keyboard-inaccessible overlays.
How Lumi works with Adobe Experience Manager
Lumi scans your AEM site across all page templates, including Experience Fragment variations, localised site copies, and personalised content variants. Our five engines detect issues in Core Component configuration, custom component output, author-entered content, and JavaScript-injected elements. Monitor continuously to catch regressions from component updates, content publishing, and MSM synchronisation.
Adobe Experience Manager-specific WCAG gotchas
Component reuse means issues scale instantly
An accessibility issue in a shared component or Experience Fragment can affect hundreds or thousands of pages simultaneously. Fixing the component fixes all instances, but discovering the issue requires scanning at scale.
Adobe Target personalisation multiplies testing variants
If your AEM site uses Adobe Target for A/B testing or personalisation, each experience variant is a separate accessibility test case. A page with three Target activities can produce many distinct variants, each needing independent accessibility validation.
AEM as a Cloud Service vs on-premises have different update cycles
AEM as a Cloud Service receives continuous updates from Adobe, which can change Core Component markup. On-premises AEM has manual updates. In both cases, updates can introduce accessibility regressions in previously tested components.
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Frequently asked questions
Does AEM have built-in accessibility checking?
AEM includes some accessibility-related features - the Core Components have ARIA support, the Image component has an alt text field, and the Page Editor can set page language. However, AEM does not include built-in WCAG validation of authored content. Adobe has published accessibility best practices for AEM, but enforcement is left to the implementation team.
Does the EAA apply to AEM enterprise sites?
If your AEM site provides services to EU consumers, the EAA applies - and enterprise organisations in banking, telecoms, transport, and e-commerce are explicitly in scope. Most AEM deployments serve markets where accessibility regulation applies.
How do I manage accessibility across AEM Multi-Site Manager?
Establish accessibility standards at the blueprint level and validate accessibility before MSM rollouts. Each live copy should be scanned independently, as localised content and regional component overrides can introduce unique accessibility issues. Consider accessibility validation as part of the MSM rollout workflow.
Can AEM Core Components guarantee accessibility?
Core Components provide an accessibility-aware starting point - they include ARIA attributes, semantic HTML, and alt text fields. But they don't guarantee accessibility. Components must be correctly configured (proper heading levels, descriptive alt text, meaningful link text), and custom styling must not override accessible defaults (removing focus indicators, introducing contrast failures).
Related resources
Last reviewed: April 2026. Content is reviewed quarterly for accuracy.