Metrics per run

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

Tested 2026-03-04 10:26:46 using Firefox 147.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 514 ms 516 ms 499 ms 515 ms 518 ms515 ms512 ms7 ms1.33 %
First Contentful Paint 1.149 s 1.162 s 1.141 s 1.153 s 1.155 s1.153 s1.152 s7 ms0.60 %
Largest Contentful Paint 2.319 s 1.854 s 2.371 s 2.364 s 2.286 s2.319 s2.239 s195 ms8.70 %
Timing metrics
First Paint 1.149 s 1.161 s 1.140 s 1.153 s 1.155 s1.153 s1.152 s7 ms0.61 %
First Contentful Paint 1.149 s 1.162 s 1.141 s 1.153 s 1.155 s1.153 s1.152 s7 ms0.60 %
Largest Contentful Paint 2.319 s 1.854 s 2.371 s 2.364 s 2.286 s2.319 s2.239 s195 ms8.70 %
Load Event End 2.235 s 2.307 s 2.149 s 2.140 s 2.205 s2.205 s2.207 s61 ms2.77 %
Server Response Time 195 ms 195 ms 195 ms 195 ms 195 ms195 ms195 ms0 ms0.00 %
TTFB 514 ms 516 ms 499 ms 515 ms 518 ms515 ms512 ms7 ms1.33 %
Page Load Time 2.235 s 2.307 s 2.149 s 2.139 s 2.204 s2.204 s2.207 s61 ms2.78 %
First Visual Change 1.200 s 1.200 s 1.167 s 1.233 s 1.200 s1.200 s1.200 s21 ms1.74 %
Last Visual Change 3.400 s 3.567 s 3.533 s 3.533 s 3.433 s3.533 s3.493 s65 ms1.85 %
Speed Index 1.305 s 1.310 s 1.269 s 1.331 s 1.360 s1.310 s1.315 s30 ms2.29 %
Visual Readiness 2.200 s 2.367 s 2.366 s 2.300 s 2.233 s2.300 s2.293 s68 ms2.96 %
Visual Complete 95 2.233 s 1.867 s 2.167 s 2.167 s 2.200 s2.167 s2.127 s132 ms6.22 %
Visual Complete 99 2.467 s 2.500 s 2.533 s 2.500 s 2.400 s2.500 s2.480 s45 ms1.82 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 76 ms 77 ms 76 ms 77 ms76 ms76 ms0 ms0.64 %
Page metrics
DOM elements 21583 21583 21583 21583 21583215832158300.00 %
Document height 47510 47588 47510 47510 475624751047536330.07 %
Total Requests 61 62 62 62 61626200.80 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 8 8 8 8 88800.00 %
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 1.5 MB 1.6 MB 1.5 MB 1.5 MB 1.5 MB1.5 MB1.5 MB34.1 KB2.21 %
HTML Transfer Size 252.6 KB 252.6 KB 252.6 KB 252.6 KB 252.6 KB252.6 KB252.6 KB0 b0.00 %
JavaScript Transfer Size 306.3 KB 306.3 KB 306.3 KB 306.3 KB 306.3 KB306.3 KB306.3 KB1 B0.00 %
CSS Transfer Size 27.7 KB 27.7 KB 27.7 KB 27.7 KB 27.7 KB27.7 KB27.7 KB1 B0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 86.7 KB 86.7 KB 86.7 KB 86.7 KB 86.7 KB86.7 KB86.7 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 61 62 62 62 61626200.80 %
First Party Total Transfer Size 1.5 MB 1.6 MB 1.5 MB 1.5 MB 1.5 MB1.5 MB1.5 MB34.1 KB2.21 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %