Vercel Core Web Vitals
How real Chrome users experience vercel.com, from Google's Chrome UX Report: the 75th percentile of visits on every device.
Vercel fails Core Web Vitals
Sep 26 – Oct 23, all devices
INP
194 ms
Good
LCP
4.4 s
Poor
CLS
0.02
Good
FCP
1.6 s
Good
TTFB
636 ms
Good
INP over time
Weekly p75. The dashed line is the 200 ms "good" threshold.
What the numbers say
- Vercel fails Core Web Vitals on Largest Contentful Paint (4.4 s, good is 2.5 s or less).
- Time to first byte is 636 ms, so most of the LCP time is spent after the first byte: loading the main image, fonts or scripts.
- Among 16 hosting and cloud sites we track, Vercel has the 16th fastest LCP.
- INP has worsened by 33 ms over the last 25 weeks, from 159 ms to 192 ms.
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 ≤ 4.4 s, CLS ≤ 0.10, FCP ≤ 1.8 s.
Other hosting and cloud sites
| Site | Core Web Vitals | LCP | INP | CLS |
|---|---|---|---|---|
| Netlify | Passes | 1.6 s | 166 ms | 0.01 |
| Cloudflare | Passes | 1.6 s | 158 ms | 0.00 |
| Render | Passes | 1.8 s | 124 ms | 0.00 |
| Railway | Fails | 3.7 s | 309 ms | 0.03 |
| Fly.io | Passes | 2.3 s | 61 ms | 0.01 |
| Heroku | Passes | 1.4 s | 78 ms | 0.01 |
| DigitalOcean | Passes | 1.6 s | 82 ms | 0.00 |
| AWS | Fails | 3.2 s | 133 ms | 0.02 |
| Google Cloud | Fails | 2.9 s | 331 ms | 0.01 |
| Supabase | Fails | 3.8 s | 190 ms | 0.03 |
| Neon | Passes | 1.4 s | 44 ms | 0.00 |
| PlanetScale | Passes | 1.1 s | 46 ms | 0.00 |
| Firebase | Fails | 2.6 s | 111 ms | 0.05 |
| MongoDB | Fails | 4.1 s | 124 ms | 0.06 |
| Upstash | Passes | 1.3 s | 44 ms | 0.00 |