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ScanGov Standards
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Government digital experience standards
Based on public policy, web protocol, guidelines and best practices.
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Guidance
Cumulative Layout Shift (CLS)
Measures unexpected webpage content shifts.
Minimizes unexpected page movements, improving user experience by keeping content stable while it loads.
Web Vitals / Core Web Vitals
First Contentful Paint (FCP)
The page begins to display within 1.8 seconds.
Measures how quickly important content appears, improving user experience by reducing wait time when loading a page.
Web Vitals / Core Web Vitals
Interaction to Next Paint (INP)
Page responds in under 0.2 seconds.
A fast response time increases interactivity and user satisfaction, leading to a more engaging experience.
Web Vitals / Core Web Vitals
Largest Contentful Paint (LCP)
Major content loads in 2.5 seconds.
Measures when the main content fully loads, improving user experience by showing the most important part of a page quickly.
Web Vitals / Core Web Vitals
Time to First Byte (TTFB)
Code received in 0.8 seconds.
Measures how quickly a server responds, impacting page load speed and user experience by reducing wait times.
Web Vitals / Core Web Vitals
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