Metrics per run

https://it.wikipedia.org/wiki/Jannik_Sinner

Tested 2025-06-18 12:47:48 using Firefox 139.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 451 ms 442 ms 443 ms 636 ms 505 ms451 ms495 ms74 ms14.95 %
First Contentful Paint 813 ms 795 ms 796 ms 1.016 s 949 ms813 ms874 ms91 ms10.47 %
Largest Contentful Paint 1.427 s 1.401 s 1.714 s 1.744 s 1.746 s1.714 s1.606 s158 ms9.82 %
Timing metrics
First Paint 820 ms 797 ms 798 ms 1.018 s 950 ms820 ms877 ms91 ms10.34 %
First Contentful Paint 813 ms 795 ms 796 ms 1.016 s 949 ms813 ms874 ms91 ms10.47 %
Largest Contentful Paint 1.427 s 1.401 s 1.714 s 1.744 s 1.746 s1.714 s1.606 s158 ms9.82 %
Load Event End 1.822 s 1.793 s 1.762 s 1.970 s 1.933 s1.822 s1.856 s81 ms4.37 %
Server Response Time 133 ms 125 ms 125 ms 156 ms 178 ms133 ms143 ms21 ms14.43 %
TTFB 451 ms 442 ms 443 ms 636 ms 505 ms451 ms495 ms74 ms14.95 %
Page Load Time 1.822 s 1.793 s 1.762 s 1.970 s 1.933 s1.822 s1.856 s81 ms4.37 %
First Visual Change 867 ms 833 ms 866 ms 1.066 s 1.000 s867 ms926 ms90 ms9.75 %
Last Visual Change 2.600 s 2.567 s 2.566 s 2.900 s 2.800 s2.600 s2.687 s138 ms5.12 %
Speed Index 1.029 s 989 ms 1.064 s 1.249 s 1.183 s1.064 s1.103 s98 ms8.86 %
Visual Readiness 1.733 s 1.734 s 1.700 s 1.834 s 1.800 s1.734 s1.760 s49 ms2.79 %
Visual Complete 95 1.633 s 1.567 s 1.766 s 1.900 s 1.800 s1.766 s1.733 s119 ms6.88 %
Visual Complete 99 1.633 s 1.567 s 1.766 s 1.900 s 1.800 s1.766 s1.733 s119 ms6.88 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 51 ms 51 ms 51 ms 51 ms51 ms51 ms0 ms0.78 %
Page metrics
DOM elements 4003 4003 4003 4002 40024003400300.01 %
Document height 13843 13843 13843 13843 13843138431384300.00 %
Total Requests 74 74 74 74 74747400.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 10 10 10 10 10101000.00 %
CSS Requests 3 3 3 3 33300.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 592.6 KB 592.6 KB 592.7 KB 592.7 KB 592.7 KB592.7 KB592.7 KB30 B0.00 %
HTML Transfer Size 56.9 KB 56.9 KB 56.9 KB 56.9 KB 56.9 KB56.9 KB56.9 KB0 b0.00 %
JavaScript Transfer Size 282.1 KB 282.1 KB 282.1 KB 282.1 KB 282.1 KB282.1 KB282.1 KB10 B0.00 %
CSS Transfer Size 28.0 KB 28.0 KB 28.0 KB 28.0 KB 28.0 KB28.0 KB28.0 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 34.3 KB 34.3 KB 34.3 KB 34.3 KB 34.3 KB34.3 KB34.3 KB0 b0.00 %
Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
HTML Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
JavaScript Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
CSS Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Image Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Font Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 74 74 74 74 74747400.00 %
First Party Total Transfer Size 592.6 KB 592.6 KB 592.7 KB 592.7 KB 592.7 KB592.7 KB592.7 KB30 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %