Viewport Reality Report
Interactive benchmark of real CSS viewport dimensions from live browser sessions
1 ratings4.44
Saves41
CategoryDeveloper Tools
PlatformWeb
PricingFree
Viewport Reality Report provides an interactive benchmark of CSS viewport dimensions observed in anonymous browser sessions on ScreenSize.net. It offers detailed distributions, quantiles, layout threshold tests, and percentile-based viewport size insights for desktop and mobile devices. Developers can use it to test layout constraints against actual viewport data rather than estimate global market shares.
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Information
CategoryDeveloper Tools
PlatformsWeb
PricingFree
AccountNot confirmed
ListedSeptember 2026
WebVisit
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Mobile PageSpeed
Automated checks of the public website by Google Lighthouse 13.5.0. Scores can vary between runs.
Checked Oct 27, 2026
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- Performance
- 92 out of 100, Good
- Accessibility
- 100 out of 100, Good
- Best Practices
- 100 out of 100, Good
- SEO
- 100 out of 100, Good
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