Accessible Website Guide: How to Build an Inclusive Web Experience

What Is Web Accessibility

Web accessibility means designing and building websites that everyone can use, including people with visual, auditory, motor, or cognitive disabilities. Globally, over one billion people live with some form of disability. An inaccessible website excludes them from your content, services, and products.

Accessibility is not charity. It is good design, good business, and increasingly, a legal requirement.

Why Accessibility Matters for Your Business

Legal Requirements

Accessibility legislation is expanding worldwide:

• European Accessibility Act (EAA) -- applies to many digital services from June 2025
• ADA (Americans with Disabilities Act) -- courts have consistently ruled that websites must be accessible
• UK Equality Act -- requires reasonable adjustments for disabled users
• AODA (Canada) -- organizations must meet WCAG 2.0 Level AA

Non-compliance carries real risk: lawsuits, fines, and reputational damage.

Business Benefits

• Larger audience -- accessible sites serve more people
• Better SEO -- many accessibility practices align with search engine optimization
• Improved usability -- what helps disabled users helps everyone
• Stronger brand reputation -- demonstrates social responsibility
• Lower bounce rates -- users who can navigate your site stay longer

Understanding WCAG

The Web Content Accessibility Guidelines (WCAG) are the international standard for web accessibility. They are organized around four principles, known by the acronym POUR:

Perceivable

Users must be able to perceive all information and interface components:

• Text alternatives for images (alt text)
• Captions and transcripts for video and audio
• Sufficient color contrast between text and background (minimum 4.5:1 ratio)
• Content that does not rely solely on color to convey meaning
• Resizable text up to 200% without loss of content

Operable

Users must be able to operate the interface:

• Full keyboard navigation -- every interactive element reachable without a mouse
• No keyboard traps -- users must be able to navigate away from any element
• Sufficient time to read and use content
• No content that flashes more than three times per second
• Skip navigation links to bypass repetitive content

Understandable

Content and interface must be understandable:

• Clear, simple language appropriate to the audience
• Consistent navigation across all pages
• Predictable behavior -- elements work as expected
• Error identification with clear suggestions for correction
• Labels and instructions for all form inputs

Robust

Content must be robust enough for various technologies:

• Valid HTML that assistive technologies can parse
• ARIA attributes used correctly where needed
• Compatible with current and future user tools

Practical Implementation Checklist

Images

• Add descriptive alt text to all informative images
• Use empty alt attributes (alt="") for decorative images
• Ensure complex images (charts, infographics) have detailed text descriptions

Navigation

• Test your entire site using only a keyboard (Tab, Enter, Escape, Arrow keys)
• Ensure visible focus indicators on all interactive elements
• Implement skip to main content link as the first focusable element
• Use semantic HTML -- nav, main, header, footer, aside

Forms

• Label every input field with an associated <label> element
• Provide clear error messages that explain what went wrong and how to fix it
• Mark required fields with more than just color (add text or symbol)
• Group related fields with <fieldset> and <legend>

Color and Contrast

• Use a contrast checker tool to verify all text meets minimum ratios
• Never use color alone to indicate status, errors, or required fields
• Test your design in grayscale to verify information is not lost
• Provide dark mode or high-contrast options where practical

Multimedia

• Add captions to all videos
• Provide transcripts for audio content
• Ensure media players are keyboard accessible
• Allow users to pause, stop, or hide auto-playing content

Typography and Layout

• Use relative units (rem, em) instead of fixed pixels for font sizes
• Ensure content is readable at 200% zoom without horizontal scrolling
• Maintain logical reading order in the HTML structure
• Keep line height at 1.5 or greater for body text

Testing Your Website for Accessibility

Automated Tools

• axe DevTools -- browser extension for quick audits
• WAVE -- visual accessibility checker
• Lighthouse -- built into Chrome, includes accessibility scoring
• Pa11y -- command-line tool for CI/CD integration

Automated tools catch approximately 30-40% of accessibility issues. Manual testing is essential.

Manual Testing

• Navigate with keyboard only -- can you reach and use everything?
• Test with a screen reader (NVDA on Windows, VoiceOver on Mac)
• Zoom to 200% -- does everything still work?
• Disable CSS -- is the content still logical and complete?
• Check with real users -- invite people with disabilities to test

Common Accessibility Mistakes

• Missing alt text on images
• Poor color contrast on text and buttons
• Forms without labels that screen readers cannot interpret
• Mouse-only interactions that exclude keyboard users
• Auto-playing video or audio without controls
• PDF documents that are not tagged for accessibility
• Relying on overlays -- accessibility overlay widgets do not fix underlying issues

Getting Started

You do not need to fix everything at once. Prioritize:

1. Keyboard navigation -- can users navigate without a mouse?
2. Alt text on all meaningful images
3. Color contrast on all text elements
4. Form labels and error handling
5. Heading structure -- proper H1 through H6 hierarchy

At RawLinks, we build accessibility into every project from the start. Retrofitting is always harder and more expensive than doing it right the first time. If your website needs to meet accessibility standards, we can help you get there efficiently.