Accessibility goes beyond good design. It’s about making sure every person can use your website with ease. The most widely accepted way to measure this is through WCAG, the Web Content Accessibility Guidelines. In this article, we’ll look at how to check if a website is WCAG compliant, why it matters, and the steps you can take.

Understanding WCAG standards (A, AA, AAA)

WCAG, developed by the World Wide Web Consortium (W3C), sets the rules for accessible design. These standards outline how websites should work for people with different abilities.

There are three levels of WCAG compliance:

●      Level A – The minimum requirements to remove major barriers.

●      Level AA – The most common target for legal and business compliance.

●      Level AAA – The highest level, covering advanced accessibility needs.

Most organizations aim for Level AA, as it strikes a balance between practicality and inclusion. A more detailed guide on these levels is being created, which will explain each in depth.

Why WCAG compliance matters

Accessibility isn’t optional. It has legal, ethical, and business dimensions that make it essential.

●      Legal – Many countries, including the UK and the US, have laws that reference WCAG standards. Ignoring them can result in legal claims, fines, or being excluded from contracts.

●      Ethical – Accessibility ensures equal digital access for disabled people. It shows respect for every customer and reflects an organization’s commitment to inclusion.

●      SEO and performance – Search engines reward websites that are easy to navigate and understand. A site that meets WCAG compliance standards is often faster, clearer, and more appealing to both users and search engines.

Put simply: accessibility protects you legally, strengthens your brand, and improves your website’s performance.

WCAG compliance checklist

Checking accessibility can feel complex, but breaking it into steps helps. Use this WCAG compliance checklist as a starting point:

Text alternatives

Every image should have alt text that describes what it shows. This allows screen readers to communicate the content to blind or visually impaired users.

Headings and structure

Pages should use clear headings (H1, H2, H3) in a logical order. This helps both assistive technology and search engines understand your content.

Keyboard navigation

A website should be fully usable without a mouse. Users must be able to move through menus, forms, and content using only a keyboard.

Forms and labels

Form fields should have clear labels. Error messages should be easy to understand, with guidance on how to fix mistakes.

Color and contrast

Text must stand out clearly from its background. People with low vision or color blindness rely on strong contrast to read comfortably.

Multimedia alternatives

Videos should have captions. Audio content should have transcripts. These features support people who are deaf or hard of hearing.

Consistency

Navigation and layout should be consistent across pages. Predictable design reduces confusion and improves usability for all visitors.

Tools to check WCAG compliance

Automated tools can speed up the process of spotting issues. A good WCAG compliance checker can highlight problems that need attention.

●      EnableAll A growing solution designed to support accessibility at scale. As new features are released, they will provide businesses with an easy way to improve digital inclusion.

●      WAVE A browser extension that shows accessibility errors on the page.

●      Lighthouse Built into Chrome, it runs audits for accessibility alongside performance and SEO.

●      Axe A developer-friendly tool that integrates with browsers and testing frameworks.

While tools are helpful, they can’t cover everything. That’s where manual testing comes in.

Manual testing for WCAG compliance

Automated scans are only part of the picture. To fully understand how to check WCAG compliance, manual checks are essential.

●      Keyboard use – Test your site using only the keyboard. Can you reach all links, buttons, and forms?

●      Screen reader testing – Tools like NVDA or VoiceOver let you hear how a blind user experiences your site.

●      Headings and landmarks – Move through the page using heading shortcuts. If the order doesn’t make sense, assistive technology users will struggle.

●      Alt text review – Check that images and icons have descriptions that add meaning, not just filenames.

Manual testing puts you in the shoes of real users. It often reveals issues that tools miss.

Common pitfalls when testing for WCAG compliance

Even with tools and checklists, some problems are often overlooked:

●      PDFs and documents – Uploads like brochures or forms must also be accessible.

●      Dynamic content – Pop-ups, chat boxes, or sliders may not work well with assistive tech.

●      Color-only cues – Using only red or green to show meaning excludes color-blind users.

●      Mobile accessibility – A site might work well on a desktop but fail on smaller screens.

Avoiding these pitfalls ensures your website stays inclusive across all platforms and content types.

Staying accessible as you grow

Accessibility is not a one-off task. Every update brings new risks, so make regular checks part of your routine. By building accessibility into design from the start, you stay compliant and create a site that works for everyone.

Need support? EnableAll can help you review, update, and maintain accessibility as your website grows.