Website Accessibility Checklist: WCAG 2.2 Compliance Guide (2026)

At Camfirst Solutions, we believe that an inaccessible website does not just exclude people with disabilities. It also limits your audience, hurts your search engine rankings, and exposes your business to potential legal action. Despite the growing awareness around digital inclusion, a large percentage of websites still fail to meet basic accessibility standards. Many of these failures stem from simple oversights that are straightforward to fix once you understand what to look for.

This guide walks through the Web Content Accessibility Guidelines (WCAG), the most common accessibility problems found on modern websites, and the practical steps you can take to make your site usable by everyone.

Understanding WCAG: The Accessibility Standard

The Web Content Accessibility Guidelines, maintained by the World Wide Web Consortium (W3C), are the internationally recognized standard for web accessibility. WCAG is organized around four core principles, often referred to by the acronym POUR:

• Perceivable: Information and user interface components must be presentable to users in ways they can perceive. This includes providing text alternatives for non-text content and ensuring content is adaptable.
• Operable: User interface components and navigation must be operable by all users, including those who rely on keyboards, voice commands, or assistive devices.
• Understandable: Information and the operation of the user interface must be understandable. This includes readable text, predictable navigation, and clear error messages.
• Robust: Content must be robust enough to be interpreted reliably by a wide variety of user agents, including assistive technologies.

WCAG Conformance Levels: A, AA, and AAA

WCAG defines three levels of conformance, each building on the one before it:

• Level A: The minimum level of accessibility. Meeting Level A criteria removes the most significant barriers, but many users will still encounter difficulties. Examples include providing alt text for images and ensuring all functionality is available via keyboard.
• Level AA: The standard most organizations aim for and the level most legal frameworks reference. Level AA addresses the majority of accessibility barriers and includes requirements for color contrast ratios (at least 4.5:1 for normal text), resizable text, and consistent navigation.
• Level AAA: The highest and most comprehensive level. While achieving full AAA conformance across an entire site is often impractical, meeting AAA criteria where possible improves the experience significantly. Examples include enhanced contrast ratios (7:1), sign language interpretation for media, and extended audio descriptions.

For most businesses, Level AA conformance is the appropriate target. It strikes the right balance between comprehensive accessibility and practical implementation, and it satisfies the requirements of most accessibility laws worldwide.

Common Accessibility Issues and How to Fix Them

Understanding the most frequent accessibility failures is the fastest path to improving your site. Here are the issues that appear most often in audits and how to address each one.

Missing or Inadequate Alt Text

Every non-decorative image on your site needs a descriptive alt attribute. Alt text serves as a text replacement for users who cannot see the image, whether they are using a screen reader, have images disabled, or are on a slow connection.

• Do: Write concise, descriptive alt text that conveys the purpose of the image. For a photo of a team meeting, use something like “Marketing team reviewing quarterly campaign results at conference table.”
• Do not: Use generic phrases like “image” or “photo” or stuff keywords into alt text for SEO purposes.
• Decorative images: If an image is purely decorative and adds no informational value, use an empty alt attribute (alt="") so screen readers skip it entirely.

Insufficient Color Contrast

Low contrast between text and its background is one of the most widespread accessibility failures. Users with low vision, color blindness, or even those viewing screens in bright sunlight struggle to read content when contrast is poor.

WCAG AA requires a minimum contrast ratio of 4.5:1 for normal text and 3:1 for large text (18px and above, or 14px bold and above). Level AAA raises these to 7:1 and 4.5:1 respectively.

Use tools like the WebAIM Contrast Checker or the Chrome DevTools accessibility panel to verify your color combinations. Common offenders include light gray text on white backgrounds and colored text on colored backgrounds. Our UI/UX design team ensures that every design we produce meets or exceeds these contrast requirements from the start.

Keyboard Navigation Failures

Not all users interact with websites using a mouse. People with motor impairments, power users, and screen reader users depend on keyboard navigation. Every interactive element on your site, including links, buttons, form fields, menus, modals, and custom widgets, must be reachable and operable using the keyboard alone.

Key requirements for keyboard accessibility:

• Tab order: Interactive elements should follow a logical reading order when navigated with the Tab key. Avoid using positive tabindex values that override the natural DOM order.
• Focus indicators: When an element receives keyboard focus, it must have a visible focus indicator (typically an outline). Never remove default focus styles without providing an equally visible replacement. Our UI/UX design process guide explains how we build accessibility checks into every stage of the design workflow.
• Keyboard traps: Users must be able to navigate into and out of every component using standard keyboard commands. Modal dialogs, dropdown menus, and embedded media players are common sources of keyboard traps.
• Skip navigation: Provide a “skip to main content” link at the top of each page so keyboard users can bypass repetitive navigation menus.

Missing or Improper Form Labels

Forms are among the most interaction-heavy components on any website, and they are frequently inaccessible. Every form input must have a programmatically associated label that screen readers can announce.

• Use the <label> element with a for attribute that matches the input’s id.
• For inputs where a visible label is not practical (such as a search field with a magnifying glass icon), use aria-label or aria-labelledby to provide an accessible name.
• Group related form controls using <fieldset> and <legend> elements, particularly for radio buttons and checkboxes.
• Provide clear, specific error messages that identify which field has an error and explain how to fix it. Color alone should never be the only indicator of an error state.

Screen Reader Compatibility

Screen readers interpret your website’s HTML to present content to users who are blind or have severe visual impairments. Making your site screen reader friendly requires clean, semantic HTML and thoughtful use of ARIA attributes.

• Use semantic HTML elements: Use <nav>, <main>, <header>, <footer>, <article>, and <section> instead of generic <div> elements. These landmarks help screen reader users orient themselves and jump between sections.
• Heading hierarchy: Use heading levels (<h1> through <h6>) in a logical, sequential order. Do not skip levels (for example, jumping from <h2> to <h4>) and do not choose heading levels based on visual appearance.
• Link text: Avoid vague link text like “click here” or “read more.” Every link should make sense out of context. A screen reader user scanning a list of links should be able to understand where each link leads.
• Live regions: For dynamic content updates (such as notifications, chat messages, or form validation), use aria-live attributes so screen readers announce changes without requiring the user to navigate to the updated area.

ARIA Attributes: When and How to Use Them

Accessible Rich Internet Applications (ARIA) attributes extend HTML to provide additional accessibility information for complex widgets and dynamic content. However, ARIA should be used carefully and as a supplement to semantic HTML, not a replacement.

The First Rule of ARIA

The first rule of ARIA is simple: if you can use a native HTML element that already has the semantics and behavior you need, do that instead. A <button> element is always preferable to a <div role="button"> because the native element provides keyboard interaction, focus management, and screen reader announcements automatically.

Common ARIA Attributes

• role: Defines the purpose of an element (e.g., role="navigation", role="dialog", role="alert"). Use roles when no native HTML element conveys the appropriate semantics.
• aria-label: Provides an accessible name for elements that do not have visible text. Useful for icon buttons and unlabeled inputs.
• aria-describedby: Links an element to a description elsewhere on the page, such as help text for a form field.
• aria-expanded: Indicates whether a collapsible section, dropdown menu, or accordion panel is currently open or closed.
• aria-hidden="true": Removes an element from the accessibility tree entirely. Use this for decorative icons or duplicate content that would confuse screen reader users.

Misusing ARIA is worse than not using it at all. Incorrect roles or conflicting attributes create confusion for assistive technology users. Always test your ARIA implementation with an actual screen reader.

Multimedia Accessibility

Audio and video content present specific accessibility challenges that require dedicated solutions.

• Captions: All pre-recorded video content with audio must have synchronized captions. Auto-generated captions are a starting point but should be reviewed and corrected for accuracy.
• Transcripts: Provide text transcripts for audio-only content such as podcasts. Transcripts also benefit users who prefer reading to listening.
• Audio descriptions: For video content where important visual information is not conveyed through the audio track, provide audio descriptions that narrate what is happening on screen.
• Autoplay: Avoid autoplaying audio or video. If autoplay is necessary, provide a clearly labeled mechanism to pause or stop it within the first few seconds.

Responsive Design and Accessibility

Accessibility and responsive design are deeply connected. A site that is not usable on mobile devices is effectively inaccessible to a large portion of the population.

• Ensure touch targets are at least 44x44 pixels to accommodate users with motor impairments.
• Content should reflow properly when zoomed to 200% without requiring horizontal scrolling. Improving performance also helps — see our tips on how to improve your website speed score.
• Do not disable pinch-to-zoom in your viewport meta tag.
• Test your site’s accessibility at multiple breakpoints, not just on desktop.

Our web development services incorporate responsive design and accessibility testing as standard practice, ensuring your site works seamlessly across all devices and for all users.

Testing Your Website for Accessibility

No amount of theoretical knowledge replaces actual testing. A comprehensive accessibility testing strategy combines automated tools with manual testing and real user feedback.

Automated Testing Tools

• axe DevTools: A browser extension that identifies accessibility issues and provides detailed fix suggestions. One of the most reliable automated tools available.
• WAVE (Web Accessibility Evaluation Tool): A free tool from WebAIM that provides visual feedback on accessibility issues directly on your page.
• Lighthouse: Built into Chrome DevTools, Lighthouse includes an accessibility audit that scores your page and highlights specific issues.
• Pa11y: A command-line tool that can be integrated into your CI/CD pipeline to catch accessibility regressions before they reach production.

Manual Testing

Automated tools catch roughly 30 to 50 percent of accessibility issues. The rest require manual testing:

• Keyboard testing: Navigate your entire site using only the keyboard. Can you reach every interactive element? Is the focus order logical? Are there any keyboard traps?
• Screen reader testing: Test with at least one screen reader. NVDA (free, Windows) and VoiceOver (built into macOS and iOS) are widely used. Listen to how your content is announced and whether the experience makes sense without visuals.
• Zoom testing: Zoom your browser to 200% and verify that content remains readable and functional without horizontal scrolling.

User Testing

The most valuable accessibility feedback comes from people who use assistive technologies daily. If possible, include users with disabilities in your testing process. Their real-world experience will reveal issues that no automated tool or manual checklist can catch.

Legal Requirements for Web Accessibility

Web accessibility is not just a best practice. In many jurisdictions, it is a legal requirement.

• Americans with Disabilities Act (ADA): While the ADA does not explicitly mention websites, courts have increasingly interpreted Title III to apply to websites of businesses that serve the public. The Department of Justice has issued guidance stating that web accessibility falls under the ADA.
• Section 508: Requires federal agencies and organizations receiving federal funding to make their electronic and information technology accessible, referencing WCAG 2.0 Level AA.
• European Accessibility Act (EAA): Requires products and services, including websites and mobile applications, to meet accessibility standards across EU member states.
• Accessibility for Ontarians with Disabilities Act (AODA): Requires organizations in Ontario to meet WCAG 2.0 Level AA for their websites.

The number of accessibility-related lawsuits has increased significantly in recent years. Industries like healthcare face especially strict requirements — our guide on healthcare website development covers the specific compliance considerations those organizations must address. Beyond legal compliance, accessible websites reach a wider audience, perform better in search engines, and demonstrate a commitment to inclusion that strengthens your brand.

Accessibility improvements also overlap significantly with SEO best practices. Semantic HTML, descriptive link text, proper heading structures, and alt text all contribute to better search engine rankings. Our SEO services team works closely with our development team to ensure that accessibility and search performance are aligned.

Building an Accessibility-First Culture

Making your website accessible is not a one-time project. It is an ongoing commitment that should be embedded into your design, development, and content creation processes.

• Design phase: Establish accessible color palettes, typography scales, and component patterns before development begins.
• Development phase: Write semantic HTML, implement keyboard navigation, and test with assistive technologies throughout the build process.
• Content phase: Train content creators to write descriptive alt text, use proper heading structures, and create accessible documents.
• Maintenance phase: Audit your site regularly, especially after adding new features or content. Accessibility regressions are common when teams do not have processes in place to prevent them.

Our custom software development process integrates accessibility considerations from the initial planning stage through deployment and beyond.

Make Your Website Accessible with Professional Web Development

Web accessibility is not about checking boxes on a compliance checklist. It is about ensuring that every person who visits your website can access the information and services they need, regardless of how they interact with the web.

If you are unsure where your website stands, start with an accessibility audit. Identify the most critical issues, prioritize fixes based on user impact, and build accessibility into your workflows going forward. Our web development and content writing teams work together to ensure every page meets WCAG standards while delivering an exceptional user experience.

Contact us today to discuss how Camfirst Solutions can make your website work for everyone.