Mobile traffic now exceeds desktop for most sites, but mobile UX bugs still slip through. The two most common issues? Touch targets that are too small and content that overflows the viewport.

The 44x44px Rule

Apple's Human Interface Guidelines and Material Design both recommend minimum touch target sizes of 44x44px. Smaller targets lead to frustrated users and accidental taps.

QAProof's responsive testing automatically identifies buttons, links, and interactive elements below this threshold on mobile viewports.

Content Overflow Detection

Horizontal scrolling is a cardinal sin of responsive design. Our AI analyzes screenshots for:

Elements extending beyond the viewport
Text that doesn't wrap properly
Fixed-width containers on mobile
Images that exceed container width

Testing All Three Viewports

Don't just test desktop and mobile. Tablets (768-1024px) have unique breakpoint issues that often get overlooked.

QAProof tests desktop (1920px), tablet (768px), and mobile (375px) simultaneously.