Metrics per run

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

Tested 2025-08-26 11:50:44 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 606 ms 495 ms 496 ms 498 ms 514 ms498 ms522 ms43 ms8.18 %
First Contentful Paint 1.033 s 914 ms 948 ms 914 ms 948 ms948 ms951 ms44 ms4.58 %
Largest Contentful Paint 2.797 s 2.503 s 2.557 s 2.340 s 2.760 s2.557 s2.591 s169 ms6.52 %
Timing metrics
First Paint 1.300 s 1.183 s 1.238 s 1.184 s 1.222 s1.222 s1.225 s43 ms3.51 %
First Contentful Paint 1.033 s 914 ms 948 ms 914 ms 948 ms948 ms951 ms44 ms4.58 %
Largest Contentful Paint 2.797 s 2.503 s 2.557 s 2.340 s 2.760 s2.557 s2.591 s169 ms6.52 %
Load Event End 3.193 s 2.836 s 2.904 s 2.738 s 2.879 s2.879 s2.910 s152 ms5.24 %
Server Response Time 194 ms 194 ms 195 ms 194 ms 194 ms194 ms194 ms0 ms0.21 %
TTFB 606 ms 495 ms 496 ms 498 ms 514 ms498 ms522 ms43 ms8.18 %
Page Load Time 3.193 s 2.836 s 2.904 s 2.737 s 2.878 s2.878 s2.910 s153 ms5.25 %
First Visual Change 1.333 s 1.233 s 1.300 s 1.200 s 1.267 s1.267 s1.267 s47 ms3.72 %
Last Visual Change 3.933 s 3.666 s 3.700 s 3.733 s 3.800 s3.733 s3.766 s94 ms2.50 %
Speed Index 1.507 s 1.414 s 1.481 s 1.362 s 1.436 s1.436 s1.440 s51 ms3.53 %
Visual Readiness 2.600 s 2.433 s 2.400 s 2.533 s 2.533 s2.533 s2.500 s73 ms2.92 %
Visual Complete 95 2.800 s 2.533 s 2.600 s 2.333 s 2.467 s2.533 s2.547 s154 ms6.06 %
Visual Complete 99 2.800 s 2.633 s 2.700 s 2.433 s 2.700 s2.700 s2.653 s122 ms4.61 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 52 ms 52 ms 52 ms 53 ms52 ms52 ms0 ms0.77 %
Page metrics
DOM elements 20836 20835 20835 20835 20835208352083500.00 %
Document height 45789 45789 45789 45789 45789457894578900.00 %
Total Requests 64 64 64 64 64646400.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 7 7 7 7 77700.00 %
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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1 B0.00 %
HTML Transfer Size 243.1 KB 243.1 KB 243.1 KB 243.1 KB 243.1 KB243.1 KB243.1 KB0 b0.00 %
JavaScript Transfer Size 370.1 KB 370.1 KB 370.1 KB 370.1 KB 370.1 KB370.1 KB370.1 KB0 b0.00 %
CSS Transfer Size 27.2 KB 27.2 KB 27.2 KB 27.2 KB 27.2 KB27.2 KB27.2 KB1 B0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.9 KB 1.9 KB 1.9 KB 1.9 KB 1.9 KB1.9 KB1.9 KB0 b0.00 %
SVG Transfer Size 32.9 KB 32.9 KB 32.9 KB 32.9 KB 32.9 KB32.9 KB32.9 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 64 64 64 64 64646400.00 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %