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AB-091
Favicon PNG Available
What it means
Checks that /favicon.png is accessible and returns a 200 response with image/png content type.
Why it matters
Legacy agents and browsers that don't support SVG favicons can still display your brand icon.
✗
What's wrong
Only favicon.svg available — older agents and browsers show a default icon or broken image.
✓
What's right
/favicon.png returns 200 with image/png media type, providing broad compatibility.
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