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Total sample size

17,034

0.2% of all 6,971,970 URLs

Web Vitals
Origin-aggregated

First Contentful Paint:

(14,865 origins)
69% 69% of page loads have a good FCP (< 1.8s).
16% 16% of page loads need to improve FCP (1.8s - 3s).
15% 15% of page loads have a poor FCP (> 3s).
(14,865 origins)

Largest Contentful Paint:

(14,484 origins)
56% 56% of page loads have a good LCP (< 2.5s).
22% 22% of page loads need to improve LCP (2.5s - 4s).
22% 22% of page loads have a poor LCP (> 4s).
(14,484 origins)

Cumulative Layout Shift:

(14,806 origins)
48% 48% of page loads have a good CLS (< 0.1).
14% 14% of page loads need to improve CLS (0.1 - 0.25).
39% 39% of page loads have a poor CLS (> 0.25).
(14,806 origins)

First Input Delay:

(12,291 origins)
87% 87% of page loads have a good FID (< 100ms).
9% 9% of page loads need to improve FID (100ms - 300ms).
4% 4% of page loads have a poor FID (> 300ms).
(12,291 origins)

Time To First Byte:

(14,848 origins)
60% 60% of page loads have a good TTFB (< 500ms).
33% 33% of page loads need to improve TTFB (500ms - 1500ms).
7% 7% of page loads have a poor TTFB (> 1500ms).
(14,848 origins)

Compressed requests
4,493 urls

  • Gzip compressed
    49.6%
  • Brotli compressed
    33.5%
  • Not compressed
    16.9%

Total Bytes
17,034 urls

  • < 200 KB
    0.0%
  • 200 KB - 400 KB
    0.1%
  • 400 KB - 600 KB
    0.2%
  • 600 KB - 800 KB
    0.6%
  • 800 KB - 1MB
    5.9%
  • > 1 MB
    93.2%

{ } JavaScript Bytes
17,034 urls

  • < 200 KB
    0.0%
  • 200 KB - 400 KB
    0.5%
  • 400 KB - 600 KB
    1.0%
  • 600 KB - 800 KB
    8.9%
  • 800 KB - 1MB
    5.5%
  • > 1 MB
    84.0%

Image Bytes
17,034 urls

  • < 200 KB
    56.4%
  • 200 KB - 400 KB
    25.2%
  • 400 KB - 600 KB
    8.0%
  • 600 KB - 800 KB
    3.1%
  • 800 KB - 1MB
    1.3%
  • > 1 MB
    6.2%
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Data from HTTP Archive and Chrome User Experience Report

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