Mobile
Whether the page is set up to display properly on phones.
- No viewport meta tag: The page has no viewport meta tag, so phones lay it out at desktop width and shrink it, leaving text tiny and hard to use without zooming.
- Viewport tag without width=device-width: The page’s viewport tag does not set width=device-width, so phones may lay the page out at a fixed or default width instead of the screen’s.
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