Hacker News Core Web Vitals
How real Chrome users experience news.ycombinator.com, from Google's Chrome UX Report: the 75th percentile of visits on every device.
Hacker News passes Core Web Vitals
Sep 26 – Oct 23, all devices
INP
44 ms
Good
LCP
554 ms
Good
CLS
0.00
Good
FCP
556 ms
Good
TTFB
521 ms
Good
INP over time
Weekly p75. The dashed line is the 200 ms "good" threshold.
What the numbers say
- Hacker News passes Core Web Vitals: LCP 554 ms, CLS 0.00, INP 44 ms are all in Google's "good" range for 3 in 4 visits.
- Among 14 media and community sites we track, Hacker News has the 1st fastest LCP.
- INP has held steady around 45 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 ≤ 2.5 s, CLS ≤ 0.10, FCP ≤ 1.8 s.
Other media and community sites
| Site | Core Web Vitals | LCP | INP | CLS |
|---|---|---|---|---|
| YouTube | Fails | 4.7 s | 245 ms | 0.34 |
| Passes | 2.0 s | 144 ms | 0.01 | |
| X | Fails | 4.4 s | 334 ms | 0.07 |
| Fails | 2.5 s | 226 ms | 0.07 | |
| Medium | Passes | 2.4 s | 106 ms | 0.03 |
| Substack | Fails | 2.4 s | 203 ms | 0.02 |
| dev.to | Passes | 1.9 s | 82 ms | 0.00 |
| Product Hunt | Passes | 2.2 s | 195 ms | 0.07 |
| Wikipedia | Passes | 1.2 s | 81 ms | 0.00 |
| The Verge | Fails | 1.4 s | 130 ms | 0.16 |
| Spotify | Fails | 5.9 s | 455 ms | 0.57 |
| Twitch | Fails | 3.1 s | 303 ms | 0.23 |
| Netflix | Fails | 3.7 s | 208 ms | 0.03 |