Metrics per run

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

Tested 2026-04-29 17:21:18 using Firefox 148.0.2 (script).(runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 392 ms 333 ms 348 ms 411 ms 410 ms392 ms379 ms32 ms8.54 %
First Contentful Paint 1.095 s 1.172 s 1.048 s 1.106 s 1.119 s1.106 s1.108 s40 ms3.61 %
Largest Contentful Paint 1.105 s 1.172 s 1.070 s 1.122 s 1.142 s1.122 s1.122 s34 ms3.06 %
Timing metrics
First Paint 1.095 s 1.171 s 1.048 s 1.105 s 1.118 s1.105 s1.107 s40 ms3.58 %
First Contentful Paint 1.095 s 1.172 s 1.048 s 1.106 s 1.119 s1.106 s1.108 s40 ms3.61 %
Largest Contentful Paint 1.105 s 1.172 s 1.070 s 1.122 s 1.142 s1.122 s1.122 s34 ms3.06 %
Load Event End 1.846 s 1.846 s 1.838 s 1.862 s 1.913 s1.846 s1.861 s27 ms1.46 %
Server Response Time 384 ms 326 ms 341 ms 404 ms 403 ms384 ms372 ms32 ms8.68 %
TTFB 392 ms 333 ms 348 ms 411 ms 410 ms392 ms379 ms32 ms8.54 %
Page Load Time 1.846 s 1.845 s 1.838 s 1.862 s 1.913 s1.846 s1.861 s27 ms1.46 %
First Visual Change 1.166 s 1.200 s 1.100 s 1.166 s 1.166 s1.166 s1.160 s33 ms2.81 %
Last Visual Change 2.966 s 2.966 s 2.800 s 2.966 s 2.900 s2.966 s2.920 s65 ms2.23 %
Speed Index 1.190 s 1.221 s 1.122 s 1.188 s 1.189 s1.189 s1.182 s32 ms2.75 %
Visual Readiness 1.800 s 1.766 s 1.700 s 1.800 s 1.734 s1.766 s1.760 s39 ms2.20 %
Visual Complete 95 1.166 s 1.200 s 1.100 s 1.166 s 1.166 s1.166 s1.160 s33 ms2.81 %
Visual Complete 99 1.833 s 1.633 s 1.666 s 1.600 s 1.766 s1.666 s1.700 s87 ms5.11 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 80 ms 79 ms 51 ms 55 ms76 ms68 ms13 ms18.39 %
Page metrics
DOM elements 23097 23098 23097 23097 23098230972309700.00 %
Document height 64682 64682 64682 64682 64682646826468200.00 %
Total Requests 91 91 91 92 91919100.44 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 2 2 2 3 222018.18 %
CSS Requests 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB3.0 KB0.26 %
HTML Transfer Size 318.5 KB 318.5 KB 318.5 KB 318.5 KB 318.5 KB318.5 KB318.5 KB1 B0.00 %
JavaScript Transfer Size 72.9 KB 72.9 KB 72.9 KB 73.9 KB 72.9 KB72.9 KB73.1 KB441 B0.59 %
CSS Transfer Size 24.5 KB 25.5 KB 24.5 KB 24.5 KB 24.5 KB24.5 KB24.7 KB410 B1.62 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Transfer Size 23.2 KB 23.2 KB 23.1 KB 23.1 KB 23.2 KB23.2 KB23.2 KB4 B0.01 %
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 %
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 91 91 91 92 91919100.44 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB3.0 KB0.26 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %