Web Performance & Accessibility

Tooltips that appear only on mouse hover can hide important instructions from keyboard and touch users. Content can also disappear before assistive technology can read it. What to check Test focus and activation, touch behavior, dismissal, timing, and screen reader output. Check whether the same information is available in visible text when needed....

Pagination may look clear visually but fail to identify the current page or announce updated results. Users can lose their place when navigating a long list. What to check Test page links and current-page state with keyboard and screen reader. Check focus after navigation, result count announcements, and whether labels distinguish duplicate controls....

Captions that drift from speech can make training or product videos difficult to follow. Re-encoding, edits, or alternate playback speeds may affect synchronization. What to check Review captions across the full video, including edits and scene changes. Test keyboard controls, multiple playback speeds, and mobile playback. Recommended next step...

A visual spinner can leave users without feedback if its state is not announced or if the page never explains that processing is complete. What to check Test loading and completion with keyboard and screen reader. Check whether the control is disabled appropriately, status changes are announced, and errors have a recovery path. Recommended next step...

A red border or color change may indicate an error visually but provide no clear signal for people with color vision differences or screen readers. What to check Inspect error text, icons, field labels, programmatic associations, contrast, and announcements. Test invalid form submission with keyboard and assistive technology. Recommended next step...

Wide data tables can become difficult to navigate on mobile when columns are clipped or headings are no longer associated with values. What to check Test at narrow widths and with screen reader navigation. Check table headers, scroll behavior, priority information, and whether users can reach all cells without losing context. Recommended next step...