qz.com Performance

sitespeed.io · V1 vs V2Sample

Updated Jul 18, 2026, 12:03 AM

Redesign · V2

On par with or better than V1 on 6 of 6 headline metrics (mobile, production).

LH Performance40
LCP2.60s
On par / better6/6

Lighthouse

V2 category scores, with change vs V1

0–4950–8990–100
40
Performance+18%V1 was 34
92
Accessibility+2.2%V1 was 90
79
Best Practices+2.6%V1 was 77
93
SEO+1.1%V1 was 92

Core Web Vitals & load

LCPNeeds work
2.60sV1 (current): 3.20s
-19%
TBTPoor
770msV1 (current): 900ms
-14%
CLSGood
0.030V1 (current): 0.050
-40%
PerfPoor
40V1 (current): 34
+18%
LVC
18.20sV1 (current): 21.00s
-13%
Bytes
1.7MBV1 (current): 1.8MB
-5.1%

Largest Contentful Paint over time

V1 vs V2, 14-day trend

V1 (current)V2 (redesign)

By page

V2 value with change vs V1

PageLCPTBTLVCPerfBytes
/2.60s-19%770ms-14%18.20s-13%40+18%1.7MB-5.1%
/elon-musk-xai-moon-space2.99s-19%963ms-14%20.02s-13%34+17%2.2MB-5.1%