Sketch Core Web Vitals
How real Chrome users experience www.sketch.com, from Google's Chrome UX Report: the 75th percentile of visits on every device.
Sketch fails Core Web Vitals
Sep 25 – Oct 22, all devices
INP
112 ms
Good
LCP
2.8 s
Needs improvement
CLS
0.08
Good
FCP
2.2 s
Needs improvement
TTFB
727 ms
Good
INP over time
Weekly p75. The dashed line is the 200 ms "good" threshold.
What the numbers say
- Sketch fails Core Web Vitals on Largest Contentful Paint (2.8 s, good is 2.5 s or less).
- Time to first byte is 727 ms, so most of the LCP time is spent after the first byte: loading the main image, fonts or scripts.
- Among 9 design sites we track, Sketch has the 5th fastest LCP.
- INP has held steady around 112 ms over the last 25 weeks.
Keep a site like this from getting slower
Real-user data shows a regression weeks after it ships. Vitalgate runs Lighthouse on every pull request and fails the check when a change breaks budgets like these: LCP ≤ 2.8 s, CLS ≤ 0.10, FCP ≤ 2.2 s.