Focus Management Accessibility Checker

WCAG 2.4.3 (Focus Order, Level A) requires that when content can be navigated sequentially, components receive focus in an order that preserves meaning and operability. WCAG 2.4.7 (Focus Visible, Level AA) requires that any keyboard-operable interface has a visible focus indicator — users must always be able to see which element currently has focus. WCAG 2.2 adds 2.4.11 (Focus Not Obscured Minimum, Level AA) requiring that focused elements are not entirely hidden by sticky headers, modals, or other overlapping content, and 2.4.13 (Focus Appearance, Level AAA) specifying minimum focus indicator size and contrast. The single most common focus violation is the CSS declaration outline: none applied globally, which removes the browser's default focus indicator without providing a replacement — effectively making keyboard navigation blind.

Focus indicators serve keyboard users the same way a cursor serves mouse users — they show where you are on the page:

• Without focus indicators, keyboard users are lost. Pressing Tab moves focus, but if nothing visually changes, the user has no idea which element is active. This makes the website effectively unusable
• Screen magnification users rely on focus indicators to track their position when they can only see a portion of the screen at any time
• Cognitive disability users benefit from clear focus indicators that reduce the mental effort of tracking their position during form completion or navigation
• Motor disability users navigating with switches or voice control need to confirm their selection before activating it — impossible without a visible indicator

Removing outline: none is among the quickest accessibility fixes you can make. A single CSS rule change can improve usability for millions of users. If you dislike the default browser outline, replace it with a custom focus style — never simply remove it.

Implementing accessible focus indicators:

• Custom focus style (recommended): :focus-visible { outline: 2px solid #1a73e8; outline-offset: 2px; border-radius: 2px; } — uses :focus-visible to show outlines only for keyboard navigation, not mouse clicks
• Never do this: *:focus { outline: none; } — removes all focus indicators globally. If your CSS framework does this, override it immediately
• Focus trapping in modals: document.querySelector('.modal').addEventListener('keydown', (e) => { if (e.key === 'Tab') { /* cycle focus within modal */ } });
• Managing focus on route changes (SPA): After a client-side navigation, move focus to the new page's main heading: document.querySelector('h1').focus(); — otherwise focus stays on the clicked link, which may no longer be visible
• Skip link: <a href="#main" class="skip-link">Skip to main content</a> with CSS that shows it only on focus, allowing keyboard users to bypass repetitive navigation

CompliScan detects several categories of focus violations: CSS rules that remove outlines without replacement (outline: none or outline: 0), interactive elements with tabindex="-1" that should be in the tab order, positive tabindex values that disrupt natural focus order, and missing skip navigation links. The scanner also identifies elements where focus order does not match visual layout — for example, CSS order or flex-direction: row-reverse that rearranges elements visually while the DOM order (and thus focus order) remains different. Each issue includes the exact CSS declaration or HTML element responsible and AI-powered fix suggestions. Automated scanning catches structural focus issues, but testing whether focus is visible enough or whether the focus order is logical often requires manual verification. Start with a free CompliScan scan, then Tab through your site to verify the experience. Shield Pro ($149/mo) provides daily monitoring to catch focus regressions from CSS updates.