istanbul.js.org
Site speed audit for istanbul.js.org based on real-user data from Chrome UX Report.
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LCP
Largest Contentful Paint
1.0s
Good < 2.5
96.5%
Impr.
2.4%
Poor ≥ 4.0
1.1%
INP
Interaction to Next Paint
46ms
Good < 200
90.7%
Impr.
6.7%
Poor ≥ 500
2.6%
CLS
Cumulative Layout Shift
0.08
Good < 0.10
73.9%
Impr.
14.9%
Poor ≥ 0.25
11.2%
TTFB
Time to First Byte
0.5s
Good < 0.8
88.6%
Impr.
7.4%
Poor ≥ 1.8
4.0%
FCP
First Contentful Paint
0.9s
Good < 1.8
92.6%
Impr.
5.3%
Poor ≥ 3.0
2.1%
Form Factors
Desktop
100.0%
Round-Trip Time
108ms
Low < 75
59.7%
Medium
35.5%
High > 275
4.8%
LCP Resource Types
LCP Image Subparts
Time to First Byte
454ms
Resource Load Delay
65ms
Resource Load Duration
348ms
Element Render Delay
70ms
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