Metrics per run

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

Tested 2025-09-17 17:17:43 using Firefox 142.0.1 (script).(runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 229 ms 249 ms 119 ms 193 ms 501 ms229 ms258 ms129 ms50.05 %
First Contentful Paint 694 ms 694 ms 559 ms 626 ms 898 ms694 ms694 ms114 ms16.36 %
Largest Contentful Paint 1.086 s 1.087 s 967 ms 1.055 s 1.275 s1.086 s1.094 s101 ms9.19 %
Timing metrics
First Paint 1.074 s 1.073 s 946 ms 1.010 s 1.256 s1.073 s1.072 s104 ms9.66 %
First Contentful Paint 694 ms 694 ms 559 ms 626 ms 898 ms694 ms694 ms114 ms16.36 %
Largest Contentful Paint 1.086 s 1.087 s 967 ms 1.055 s 1.275 s1.086 s1.094 s101 ms9.19 %
Load Event End 2.509 s 2.283 s 2.013 s 2.075 s 2.468 s2.283 s2.270 s200 ms8.82 %
Server Response Time 223 ms 243 ms 113 ms 186 ms 494 ms223 ms252 ms129 ms51.22 %
TTFB 229 ms 249 ms 119 ms 193 ms 501 ms229 ms258 ms129 ms50.05 %
Page Load Time 2.508 s 2.283 s 2.013 s 2.075 s 2.468 s2.283 s2.269 s200 ms8.81 %
First Visual Change 1.133 s 1.133 s 1.000 s 1.066 s 1.300 s1.133 s1.126 s100 ms8.86 %
Last Visual Change 3.666 s 3.433 s 3.533 s 3.600 s 3.600 s3.600 s3.566 s79 ms2.21 %
Speed Index 1.288 s 1.272 s 1.160 s 1.191 s 1.436 s1.272 s1.269 s96 ms7.57 %
Visual Readiness 2.533 s 2.300 s 2.533 s 2.534 s 2.300 s2.533 s2.440 s114 ms4.68 %
Visual Complete 95 2.533 s 2.300 s 2.433 s 2.066 s 2.467 s2.433 s2.360 s165 ms7.01 %
Visual Complete 99 2.533 s 2.300 s 2.466 s 2.066 s 2.467 s2.466 s2.366 s169 ms7.13 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 56 ms 56 ms 57 ms 55 ms56 ms55 ms2 ms3.12 %
Page metrics
DOM elements 21566 21567 21566 21567 21566215662156600.00 %
Document height 63290 63290 63290 63290 63290632906329000.00 %
Total Requests 90 89 89 89 89898900.45 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 3 2 2 2 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 MB416 B0.04 %
HTML Transfer Size 296.6 KB 296.6 KB 296.6 KB 296.6 KB 296.6 KB296.6 KB296.6 KB0 b0.00 %
JavaScript Transfer Size 72.8 KB 71.8 KB 71.8 KB 71.8 KB 71.8 KB71.8 KB72.0 KB416 B0.56 %
CSS Transfer Size 24.3 KB 24.3 KB 24.3 KB 24.3 KB 24.3 KB24.3 KB24.3 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Transfer Size 22.2 KB 22.2 KB 22.2 KB 22.2 KB 22.2 KB22.2 KB22.2 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 %
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 90 89 89 89 89898900.45 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB416 B0.04 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %