Keyboard accessibility is an essential part of creating inclusive websites and applications. Many users rely on a keyboard instead of a mouse to navigate digital products. People with motor disabilities and visual impairments may use keyboards or assistive technologies to interact with websites. This makes keyboard accessibility testing an important part of modern accessibility and quality assurance.

However, websites can have several keyboard accessibility issues that prevent users from completing tasks independently. Identifying and fixing these problems can improve usability while helping businesses work toward WCAG compliance.

1. Missing or Invisible Focus Indicators

A visible focus indicator helps users understand which element is currently selected while navigating with the keyboard. Removing the default focus outline without providing an alternative can make navigation confusing.

How to fix it:
Provide a clear and sufficiently visible focus indicator for interactive elements. Test focus visibility across different backgrounds and page components.

2. Incorrect Keyboard Tab Order

A logical tab order allows users to move through content in a predictable sequence. An incorrect order can make forms and interactive pages difficult to navigate.

How to fix it:
Review the page structure and ensure that keyboard focus follows the intended reading and interaction order. Avoid unnecessary positive tabindex values and use a logical HTML structure wherever possible.

3. Keyboard Traps

A keyboard trap occurs when a user can move into an interactive component but cannot move away from it using the keyboard. This can occur in modal windows and custom widgets.

How to fix it:
Test every interactive component using only the keyboard. Users should be able to enter and exit menus, dialogs and other components without becoming trapped.

4. Mouse-Only Interactions

Some websites rely on mouse hover or clicking for important functionality. This can prevent keyboard-only users from accessing menus, controls or other content.

How to fix it:
Ensure that every essential interaction can be performed using the keyboard. Test common keys such as Tab, Enter, Space, Escape and arrow keys where appropriate.

5. Inaccessible Forms and Custom Controls

Form fields and custom controls may not provide proper keyboard access or clear focus states. This can make essential tasks difficult or impossible to complete.

How to fix it:
Use semantic HTML controls whenever possible. Ensure custom components support appropriate keyboard interactions and provide clear focus feedback.

Why Keyboard Navigation Testing Matters

These issues can be difficult to identify through automated accessibility scans alone. Manual keyboard accessibility testing allows QA teams to evaluate real navigation patterns and identify problems involving focus order, keyboard traps and interactive components.

Following WCAG 2.1 and WCAG 2.2 guidelines can help organisations create more accessible digital experiences. Combining automated tools with manual keyboard navigation testing provides broader accessibility coverage.

Build Better Digital Experiences with Accessibility Testing

Regular accessibility testing helps organisations identify barriers before they affect users. From keyboard navigation and focus management to screen reader compatibility and WCAG compliance testing, a structured testing approach can improve both accessibility and overall user experience.

SDET Tech provides professional accessibility testing services to help businesses identify accessibility issues and build more inclusive digital products.