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Browser Compatibility Tester

Flags cross-browser rendering issues — newer CSS without fallbacks, Safari quirks, font inconsistencies, and touch target sizing problems.

What this angle analyses

  • Modern CSS property fallback coverage
  • Safari and WebKit-specific issues
  • Internet Explorer and older browser graceful degradation
  • Font rendering consistency across platforms
  • Touch target sizing for mobile browsers
  • JavaScript API compatibility and polyfill needs

Example finding

A layout feature that older Safari versions do not support makes the pricing table overlap on some iPhones.

Illustrative: the kind of issue this angle looks for. Every audit reports on your own site.

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