Metrics per run

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

Tested 2026-04-29 20:09:24 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 636 ms 498 ms 427 ms 414 ms 434 ms434 ms482 ms82 ms17.10 %
First Contentful Paint 1.147 s 958 ms 867 ms 885 ms 887 ms887 ms949 ms104 ms10.95 %
Largest Contentful Paint 1.609 s 1.340 s 1.204 s 1.321 s 1.255 s1.321 s1.346 s140 ms10.42 %
Timing metrics
First Paint 1.146 s 958 ms 867 ms 884 ms 887 ms887 ms948 ms104 ms10.93 %
First Contentful Paint 1.147 s 958 ms 867 ms 885 ms 887 ms887 ms949 ms104 ms10.95 %
Largest Contentful Paint 1.609 s 1.340 s 1.204 s 1.321 s 1.255 s1.321 s1.346 s140 ms10.42 %
Load Event End 2.035 s 1.849 s 1.816 s 1.744 s 1.742 s1.816 s1.837 s107 ms5.84 %
Server Response Time 312 ms 104 ms 104 ms 105 ms 104 ms104 ms146 ms83 ms57.00 %
TTFB 636 ms 498 ms 427 ms 414 ms 434 ms434 ms482 ms82 ms17.10 %
Page Load Time 2.034 s 1.849 s 1.816 s 1.744 s 1.742 s1.816 s1.837 s107 ms5.82 %
First Visual Change 1.200 s 1.000 s 900 ms 933 ms 933 ms933 ms993 ms108 ms10.91 %
Last Visual Change 3.200 s 3.066 s 2.867 s 2.833 s 2.900 s2.900 s2.973 s139 ms4.67 %
Speed Index 1.253 s 1.055 s 949 ms 983 ms 982 ms983 ms1.044 s110 ms10.52 %
Visual Readiness 2.000 s 2.066 s 1.967 s 1.900 s 1.967 s1.967 s1.980 s54 ms2.72 %
Visual Complete 95 1.633 s 1.366 s 1.200 s 1.300 s 1.266 s1.300 s1.353 s150 ms11.08 %
Visual Complete 99 2.000 s 1.866 s 1.633 s 1.700 s 1.666 s1.700 s1.773 s139 ms7.84 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 76 ms 76 ms 77 ms76 ms76 ms0 ms0.52 %
Page metrics
DOM elements 5516 5516 5516 5516 55165516551600.00 %
Document height 17483 17483 17483 17483 17483174831748300.00 %
Total Requests 72 72 72 72 72727200.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 99900.00 %
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 628.1 KB 628.2 KB 628.3 KB 628.2 KB 628.2 KB628.2 KB628.2 KB35 B0.01 %
HTML Transfer Size 89.8 KB 89.8 KB 89.8 KB 89.8 KB 89.8 KB89.8 KB89.8 KB14 B0.02 %
JavaScript Transfer Size 308.4 KB 308.4 KB 308.5 KB 308.4 KB 308.4 KB308.4 KB308.4 KB29 B0.01 %
CSS Transfer Size 33.0 KB 33.0 KB 33.0 KB 33.0 KB 33.0 KB33.0 KB33.0 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 36.0 KB 36.0 KB 36.0 KB 36.0 KB 36.0 KB36.0 KB36.0 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 72 72 72 72 72727200.00 %
First Party Total Transfer Size 628.1 KB 628.2 KB 628.3 KB 628.2 KB 628.2 KB628.2 KB628.2 KB35 B0.01 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %