Metrics per run

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

Tested 2025-06-18 13:44:09 using Firefox 139.0.1 (script).(runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 120 ms 124 ms 126 ms 127 ms 129 ms126 ms125 ms3 ms2.44 %
First Contentful Paint 593 ms 558 ms 897 ms 541 ms 559 ms559 ms630 ms135 ms21.40 %
Largest Contentful Paint 926 ms 897 ms 901 ms 875 ms 898 ms898 ms899 ms16 ms1.80 %
Timing metrics
First Paint 925 ms 896 ms 900 ms 875 ms 898 ms898 ms899 ms16 ms1.77 %
First Contentful Paint 593 ms 558 ms 897 ms 541 ms 559 ms559 ms630 ms135 ms21.40 %
Largest Contentful Paint 926 ms 897 ms 901 ms 875 ms 898 ms898 ms899 ms16 ms1.80 %
Load Event End 1.908 s 1.814 s 1.836 s 1.830 s 1.901 s1.836 s1.858 s39 ms2.09 %
Server Response Time 113 ms 117 ms 119 ms 120 ms 121 ms119 ms118 ms3 ms2.40 %
TTFB 120 ms 124 ms 126 ms 127 ms 129 ms126 ms125 ms3 ms2.44 %
Page Load Time 1.907 s 1.813 s 1.836 s 1.830 s 1.901 s1.836 s1.857 s39 ms2.09 %
First Visual Change 966 ms 933 ms 933 ms 900 ms 933 ms933 ms933 ms21 ms2.24 %
Last Visual Change 3.133 s 3.100 s 3.133 s 3.133 s 3.133 s3.133 s3.126 s13 ms0.42 %
Speed Index 1.109 s 1.089 s 1.090 s 1.069 s 1.081 s1.089 s1.088 s13 ms1.20 %
Visual Readiness 2.167 s 2.167 s 2.200 s 2.233 s 2.200 s2.200 s2.193 s25 ms1.13 %
Visual Complete 95 1.900 s 1.966 s 1.966 s 2.000 s 1.900 s1.966 s1.946 s40 ms2.05 %
Visual Complete 99 1.900 s 1.966 s 1.966 s 2.000 s 1.900 s1.966 s1.946 s40 ms2.05 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 77 ms 77 ms 76 ms 79 ms77 ms77 ms1 ms1.42 %
Page metrics
DOM elements 21525 21525 21525 21525 21526215252152500.00 %
Document height 63235 63235 63235 63235 63235632356323500.00 %
Total Requests 90 90 90 90 90909000.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 2 2 2 2 22200.00 %
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 MB380 B0.03 %
HTML Transfer Size 295.1 KB 295.1 KB 295.1 KB 295.1 KB 295.1 KB295.1 KB295.1 KB0 b0.00 %
JavaScript Transfer Size 74.3 KB 74.3 KB 74.3 KB 74.3 KB 74.3 KB74.3 KB74.3 KB1 B0.00 %
CSS Transfer Size 23.8 KB 23.8 KB 24.8 KB 23.8 KB 23.8 KB23.8 KB24.0 KB380 B1.54 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Transfer Size 22.4 KB 22.4 KB 22.4 KB 22.4 KB 22.4 KB22.4 KB22.4 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 90 90 90 90909000.00 %
First Party Total Transfer Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB380 B0.03 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %