Metrics per run

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

Tested 2025-08-28 14:55:36 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 619 ms 555 ms 581 ms 622 ms 628 ms619 ms601 ms28 ms4.71 %
First Contentful Paint 1.253 s 982 ms 999 ms 1.084 s 1.118 s1.084 s1.087 s97 ms8.95 %
Largest Contentful Paint 2.581 s 2.312 s 2.813 s 2.306 s 2.357 s2.357 s2.474 s197 ms7.97 %
Timing metrics
First Paint 1.507 s 1.214 s 1.248 s 1.329 s 1.354 s1.329 s1.330 s102 ms7.67 %
First Contentful Paint 1.253 s 982 ms 999 ms 1.084 s 1.118 s1.084 s1.087 s97 ms8.95 %
Largest Contentful Paint 2.581 s 2.312 s 2.813 s 2.306 s 2.357 s2.357 s2.474 s197 ms7.97 %
Load Event End 2.803 s 2.885 s 3.002 s 2.888 s 3.167 s2.888 s2.949 s126 ms4.27 %
Server Response Time 194 ms 195 ms 195 ms 223 ms 223 ms195 ms206 ms14 ms6.74 %
TTFB 619 ms 555 ms 581 ms 622 ms 628 ms619 ms601 ms28 ms4.71 %
Page Load Time 2.802 s 2.885 s 3.001 s 2.888 s 3.166 s2.888 s2.948 s126 ms4.27 %
First Visual Change 1.533 s 1.267 s 1.267 s 1.400 s 1.400 s1.400 s1.373 s100 ms7.25 %
Last Visual Change 3.867 s 3.467 s 3.500 s 3.666 s 3.800 s3.666 s3.660 s158 ms4.33 %
Speed Index 1.670 s 1.418 s 1.465 s 1.528 s 1.527 s1.527 s1.522 s85 ms5.58 %
Visual Readiness 2.334 s 2.200 s 2.233 s 2.266 s 2.400 s2.266 s2.287 s72 ms3.15 %
Visual Complete 95 2.500 s 2.333 s 2.767 s 2.300 s 2.300 s2.333 s2.440 s180 ms7.36 %
Visual Complete 99 2.600 s 2.433 s 2.800 s 2.633 s 2.533 s2.600 s2.600 s121 ms4.66 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 53 ms 52 ms 51 ms 52 ms52 ms52 ms1 ms1.22 %
Page metrics
DOM elements 20837 20837 20837 20837 20837208372083700.00 %
Document height 45794 45794 45794 45794 45794457944579400.00 %
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 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB2.0 KB0.16 %
HTML Transfer Size 243.2 KB 243.2 KB 243.2 KB 243.2 KB 243.2 KB243.2 KB243.2 KB0 b0.00 %
JavaScript Transfer Size 368.3 KB 368.3 KB 368.3 KB 368.3 KB 368.3 KB368.3 KB368.3 KB0 b0.00 %
CSS Transfer Size 27.3 KB 27.3 KB 27.3 KB 27.3 KB 27.3 KB27.3 KB27.3 KB0 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 33.2 KB 33.2 KB 33.2 KB 33.2 KB 33.2 KB33.2 KB33.2 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 %
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 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB2.0 KB0.16 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %