Metrics per run

https://en.wikipedia.org/wiki/Barack_Obama

Tested 2026-03-04 12:49:21 using Firefox 147.0 (script).(runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 120 ms 304 ms 120 ms 443 ms 156 ms156 ms229 ms127 ms55.51 %
First Contentful Paint 970 ms 997 ms 873 ms 1.560 s 870 ms970 ms1.054 s258 ms24.48 %
Largest Contentful Paint 970 ms 1.034 s 873 ms 1.580 s 887 ms970 ms1.069 s262 ms24.53 %
Interaction to Next Paint 328 ms NaN s NaN s NaN s NaN s328 ms328 ms0 ms0.00 %
Timing metrics
First Paint 969 ms 996 ms 872 ms 1.559 s 870 ms969 ms1.053 s258 ms24.49 %
First Contentful Paint 970 ms 997 ms 873 ms 1.560 s 870 ms970 ms1.054 s258 ms24.48 %
Largest Contentful Paint 970 ms 1.034 s 873 ms 1.580 s 887 ms970 ms1.069 s262 ms24.53 %
Load Event End 1.484 s 1.675 s 1.556 s 2.766 s 1.068 s1.556 s1.710 s566 ms33.12 %
Server Response Time 113 ms 298 ms 113 ms 437 ms 150 ms150 ms222 ms127 ms57.26 %
TTFB 120 ms 304 ms 120 ms 443 ms 156 ms156 ms229 ms127 ms55.51 %
Page Load Time 1.483 s 1.675 s 1.556 s 2.766 s 1.068 s1.556 s1.710 s566 ms33.13 %
First Visual Change 1.033 s 1.033 s 900 ms 1.600 s 900 ms1.033 s1.093 s260 ms23.81 %
Last Visual Change 3.200 s 3.366 s 3.200 s 3.933 s 3.266 s3.266 s3.393 s277 ms8.16 %
Speed Index 1.085 s 1.091 s 954 ms 1.654 s 959 ms1.085 s1.149 s259 ms22.59 %
Visual Readiness 2.167 s 2.333 s 2.300 s 2.333 s 2.366 s2.333 s2.300 s70 ms3.03 %
Visual Complete 95 1.033 s 1.066 s 900 ms 1.600 s 900 ms1.033 s1.100 s259 ms23.56 %
Visual Complete 99 2.066 s 2.233 s 2.066 s 2.800 s 2.100 s2.100 s2.253 s280 ms12.44 %
CPU metrics
Browser metrics
CPU benchmark score 81 ms 81 ms 54 ms 84 ms 54 ms81 ms71 ms14 ms19.44 %
Page metrics
DOM elements 23007 23007 23007 23008 23007230072300700.00 %
Document height 63717 63717 63763 63717 636486371763712370.06 %
Total Requests 46 45 46 46 45464601.07 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 3 3 3 3 33300.00 %
CSS Requests 2 2 2 2 322018.18 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 672.7 KB 670.9 KB 664.0 KB 672.7 KB 606.2 KB670.9 KB657.3 KB25.7 KB3.91 %
HTML Transfer Size 315.7 KB 315.7 KB 315.7 KB 315.7 KB 315.7 KB315.7 KB315.7 KB0 b0.00 %
JavaScript Transfer Size 72.7 KB 72.7 KB 72.7 KB 72.7 KB 72.7 KB72.7 KB72.7 KB1 B0.00 %
CSS Transfer Size 24.5 KB 24.5 KB 24.5 KB 24.5 KB 25.5 KB24.5 KB24.7 KB410 B1.62 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Transfer Size 18.5 KB 18.5 KB 18.5 KB 18.5 KB 18.5 KB18.5 KB18.5 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 46 45 46 46 45464601.07 %
First Party Total Transfer Size 672.7 KB 670.9 KB 664.0 KB 672.7 KB 606.2 KB670.9 KB657.3 KB25.7 KB3.91 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %