Web accessibility matters: build inclusive sites for everyone

What is web accessibility?#

Imagine navigating a site where you cannot see content, hear audio, or use keyboard controls. That is daily reality for millions with disabilities. Web accessibility means building sites that anyone can use, regardless of ability. Standards like the Web Content Accessibility Guidelines (WCAG) help developers create inclusive digital experiences.

The concept rests on equal access. People have diverse needs: some are blind, some deaf, some cannot use a mouse, some have cognitive disabilities. A site built without these people in mind excludes them. A site built with them in mind works better for everyone.

WCAG 2.2 and the three compliance levels#

The World Wide Web Consortium (W3C) publishes the Web Content Accessibility Guidelines (WCAG). These guidelines are internationally recognized standards that shape accessibility law and practice. The current version, WCAG 2.2, was published in October 2023.

WCAG defines three compliance levels:

• Level A: basic accessibility for all users
• Level AA: more inclusive, suitable for most situations
• Level AAA: the highest standard, for specialized audiences

WCAG 2.2 added nine new success criteria focusing on low vision support, cognitive accessibility, and mobile content. One example: focus indicators must be clearly visible so keyboard users know which element has focus.

Web accessibility is a legal mandate#

Accessibility is not optional. The Americans with Disabilities Act (ADA) in the US mandates web accessibility for public websites. Europe has the European Accessibility Act. Failing to comply can lead to lawsuits, reputation damage, and exclusion of users.

But beyond compliance, the numbers matter. Approximately 15 percent of the world population has some disability. That is over a billion people. Inaccessible sites shut them out. Accessible sites open opportunity and market.

Accessible sites also rank higher in search results. Semantic HTML, clear structure, and descriptive text help both screen readers and search engines. That benefits SEO. Brands known for inclusivity build trust. Accessibility is good business.

Tools for testing accessibility#

Automated tools help catch basic issues. Axe, Lighthouse, and WAVE scan for common problems. Chrome DevTools includes Lighthouse built in. Browser extensions like Axe provide real-time feedback.

But here is the critical limit: automated tools catch only 30 to 40 percent of accessibility issues. Manual testing and user testing with people who have disabilities is equally important. Real users find barriers that machines miss.

Testing should happen throughout development, not only at the end. Build accessibility in from the start. Your accessibility testing during the build catches problems early when they cost less to fix.

The POUR principles of accessible design#

POUR stands for Perceivable, Operable, Understandable, and Robust. These four principles guide accessible design and development.

Perceivable: Users must see or hear content, regardless of sensory disabilities. Always provide text alternatives for images using the alt attribute.

<img src="example.jpg" alt="A beautiful sunset over the mountains">

Operable: Users must navigate and interact with the interface. Ensure all interactive elements work via keyboard. Users who cannot use a mouse depend on keyboard navigation.

<button onclick="alert('Button clicked!')">Click Me</button>
<!-- Add focus styles for better visibility -->
<style>
  button:focus {
    outline: medium solid Highlight;
  }
</style>

Understandable: Information must be clear and intuitive. Forms should be clearly labeled with instructions that help users fill them out correctly.

<label for="email">Email:</label>
<input type="email" id="email" name="email" placeholder="example@domain.com">

Robust: Content must work across devices and assistive technologies. Use proper semantic HTML like <nav>, <header>, and <footer> to help screen readers navigate.

<!-- Semantic HTML for screen readers -->
<nav>Navigation menu here</nav>
<header>Page header</header>
<footer>Page footer</footer>

Common barriers to web accessibility#

Several barriers block access. Knowing them helps you avoid them:

• Missing alt text makes images invisible to screen readers
• Poor color contrast makes text unreadable for visually impaired users
• No keyboard navigation excludes users with motor disabilities
• Non-descriptive links like "click here" confuse users

The good news: these barriers are preventable. Add alt text to images. Check contrast ratios. Test keyboard navigation. Use descriptive link text. These changes cost little and open access for millions.

Why accessibility benefits everyone#

Accessibility solves real problems for real people. It also brings business benefits. Accessible sites rank higher because search engines read semantic HTML better. Users with disabilities stay longer on accessible sites. Elderly users or users on slow connections benefit from accessible design. Brands committed to inclusion gain loyalty.

At Atyantik, we build accessibility in from the start. Our developers ensure your site serves everyone. If you want to make your site accessible or need a WCAG compliance audit, reach out to us.