
Web Accessibility Course
Master web accessibility from WCAG principles to ARIA implementation and real-world auditing. This course equips developers, designers, and product teams with the technical skills and strategic mindset to build inclusive digital experiences. Learn to test with assistive technologies, write semantic HTML, and lead accessibility initiatives that meet legal standards and serve every user.
What you will learn:
You will gain a thorough understanding of WCAG principles, success criteria, and conformance levels, and learn how to apply them to real projects. You will write semantic HTML, implement WAI-ARIA patterns, and design accessible CSS for colour contrast, focus indicators, and motion safety. The course covers keyboard navigation, focus management, and screen reader testing across major platforms. You will also learn to run accessibility audits, write professional reports, and integrate accessibility into Agile workflows and component libraries. By the end, you will have the skills to build and maintain accessible web products from the ground up.
How you study in practice Web Accessibility Course
How you practise Web Accessibility Course
For companies looking to train their team
With Dedika for businesses, the course includes exercises and examples tailored to your own business and the specific needs of your company.
Course content
8 Chapters • 40 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsFoundations of Web Accessibility
Foundations of Web Accessibility
Lesson 1 • The Accessibility Mindset
Frames accessibility as a continuous practice rather than a checklist. Prepares learners to embed inclusive thinking into every project phase.
Lesson 2 • The Business and Ethical Case
Examines why organisations invest in accessibility beyond compliance. Connects ethical responsibility to measurable business outcomes.
Lesson 3 • Defining Web Accessibility
Covers the meaning of web accessibility and the spectrum of disabilities it addresses. Grounds all subsequent learning in a shared, precise definition.
Lesson 4 • How Assistive Technologies Work
Explains the tools people with disabilities use to navigate the web. Builds empathy and technical awareness needed for accessible design decisions.
Lesson 5 • Global Accessibility Standards Overview
Introduces the international standards landscape governing web accessibility. Provides context for the technical guidelines studied in later chapters.
Chapter 2HideHide detailsSee detailsWCAG Principles and Success Criteria
WCAG Principles and Success Criteria
Lesson 1 • Perceivable Content Principles
Covers criteria ensuring all information is presentable to users' senses. Directly applies WCAG Principle 1 to real content types.
Lesson 2 • Operable Interface Principles
Addresses criteria that ensure all functionality is accessible via keyboard and time-tolerant interaction. Connects interface behaviour to WCAG Principle 2.
Lesson 3 • Applying Conformance Levels Strategically
Teaches how to select and justify conformance targets for real projects. Bridges abstract criteria to practical project scoping decisions.
Lesson 4 • Robust Markup Principles
Focuses on criteria ensuring content is interpreted reliably by assistive technologies. Ties code quality to WCAG Principle 4.
Lesson 5 • Understandable Content Principles
Examines criteria for readable text and predictable, error-tolerant interfaces. Links language clarity and UI consistency to WCAG Principle 3.
Chapter 3HideHide detailsSee detailsAccessible HTML Structure and Semantics
Accessible HTML Structure and Semantics
Lesson 1 • Accessible Forms and Inputs
Covers labelling, grouping, and error-handling patterns for form controls. Directly impacts the most common interaction barrier on the web.
Lesson 2 • Semantic HTML Elements
Introduces native HTML elements that carry built-in accessibility meaning. Establishes the foundation for all accessible markup practices.
Lesson 3 • Links, Buttons, and Interactive Controls
Distinguishes correct usage of links vs. buttons and ensures interactive elements are accessible. Prevents the most common semantic misuse patterns.
Lesson 4 • Document Language and Metadata
Explains how language declarations and page metadata affect assistive technology behaviour. Completes the semantic layer of accessible HTML documents.
Lesson 5 • Images, Media, and Alternative Text
Teaches how to provide meaningful alternatives for visual and audio content. Applies Perceivable criteria to concrete content authoring decisions.
Chapter 4HideHide detailsSee detailsARIA and Dynamic Accessibility
ARIA and Dynamic Accessibility
Lesson 1 • Live Regions and Dynamic Updates
Teaches how to announce dynamic content changes to screen reader users. Addresses the accessibility gap created by JavaScript-driven UI updates.
Lesson 2 • Accessible Custom Widgets with ARIA
Applies ARIA patterns to build accessible tabs, modals, accordions, and menus. Translates ARIA specification into production-ready component patterns.
Lesson 3 • ARIA Fundamentals and Rules
Introduces the purpose of ARIA and its five rules of use. Prevents common misapplication before learners build complex patterns.
Lesson 4 • ARIA Anti-Patterns and Debugging
Identifies frequent ARIA misuse that degrades accessibility and teaches correction strategies. Builds critical review skills for auditing existing codebases.
Lesson 5 • Landmark and Structural ARIA Roles
Covers ARIA landmark and document structure roles for page regions. Reinforces semantic structure from the HTML chapter with ARIA equivalents.
Chapter 5HideHide detailsSee detailsAccessible CSS and Visual Design
Accessible CSS and Visual Design
Lesson 1 • Colour, Contrast, and Visual Clarity
Covers contrast ratio requirements and colour-independent communication of information. Directly addresses the most frequently failed WCAG visual criteria.
Lesson 2 • Focus Indicators and Keyboard Visibility
Explains how to design visible, high-contrast focus styles for keyboard users. Addresses one of the most commonly suppressed accessibility features.
Lesson 3 • Motion, Animation, and Reduced Motion
Addresses the risks of animation for users with vestibular disorders and teaches safe motion practices. Applies WCAG motion and seizure criteria to CSS animations.
Lesson 4 • Typography and Readable Text
Teaches font sizing, line spacing, and text resizing techniques for readability. Connects typographic choices to WCAG resize and spacing criteria.
Lesson 5 • Responsive and Flexible Layouts
Covers layout techniques that support zoom, reflow, and varied viewport sizes. Ensures visual designs remain accessible across devices and user settings.
Chapter 6HideHide detailsSee detailsKeyboard and Focus Management
Keyboard and Focus Management
Lesson 1 • Custom Keyboard Interaction Patterns
Applies established keyboard conventions to composite widgets like menus and grids. Ensures custom components meet user expectations for keyboard behaviour.
Lesson 2 • Modal and Overlay Focus Trapping
Teaches correct focus containment within dialogs, drawers, and overlays. Prevents focus from escaping interactive layers and confusing screen reader users.
Lesson 3 • Keyboard Navigation Fundamentals
Establishes the baseline keyboard interaction model for web interfaces. Provides the conceptual framework for all focus management techniques.
Lesson 4 • Testing and Auditing Keyboard Access
Provides a systematic process for manually testing keyboard accessibility. Builds the auditing skill needed to verify and document keyboard conformance.
Lesson 5 • Managing Focus in Single-Page Apps
Covers focus management strategies for route changes and dynamic content in SPAs. Solves the navigation disorientation problem unique to JavaScript-heavy applications.
Chapter 7HideHide detailsSee detailsAccessibility Testing and Auditing
Accessibility Testing and Auditing
Lesson 1 • Automated Testing Tools and Limits
Introduces automated accessibility scanners and explains what they can and cannot detect. Sets realistic expectations before manual and user testing methods are introduced.
Lesson 2 • Writing Accessibility Audit Reports
Teaches how to document findings, assign severity, and recommend fixes clearly. Transforms raw test data into actionable deliverables for development teams.
Lesson 3 • User Testing with Disabled Participants
Explains how to recruit, plan, and conduct usability sessions with disabled users. Produces qualitative insights that no automated or manual tool can replicate.
Lesson 4 • Screen Reader Testing Protocols
Teaches how to test with major screen readers across operating systems and browsers. Provides the most direct validation of real assistive technology compatibility.
Lesson 5 • Manual Testing Techniques
Covers structured manual inspection methods that catch issues automation misses. Complements automated testing with human judgment and contextual evaluation.
Chapter 8HideHide detailsSee detailsAccessibility in Design and Development Workflows
Accessibility in Design and Development Workflows
Lesson 1 • Building an Accessible Component Library
Guides teams in creating reusable, pre-tested accessible UI components. Scales accessibility quality across products without duplicating effort.
Lesson 2 • Accessibility in Agile and Scrum Teams
Adapts accessibility practices to sprint-based delivery cycles. Prevents accessibility debt from accumulating across iterative development.
Lesson 3 • Developer Handoff and Implementation
Covers how to communicate accessibility requirements from design to engineering. Ensures specifications survive the handoff and are implemented correctly.
Lesson 4 • Accessibility in the Design Phase
Embeds accessibility checkpoints into UX research, wireframing, and visual design. Prevents costly remediation by catching issues before code is written.
Lesson 5 • Monitoring and Sustaining Accessibility
Establishes ongoing monitoring, governance, and improvement processes. Ensures accessibility gains are maintained as products evolve over time.
Your valid completion certificate
This course is for you:
Front-end developer: wants to stop guessing and build inclusively by default.
UX/UI designer: needs to catch accessibility issues before handing off to engineering.
QA engineer: ready to add structured accessibility testing to their existing skill set.
Product manager: responsible for compliance and wants to understand what teams actually need.
Career changer: transitioning into tech and wants a high-demand, values-driven specialisation.
Freelance web professional: looking to offer accessibility audits as a billable service.
What our students say
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