Metrics per run

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

Tested 2025-08-28 20:57:20 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 579 ms 606 ms 515 ms 603 ms 599 ms599 ms580 ms34 ms5.86 %
First Contentful Paint 1.168 s 1.202 s 931 ms 1.185 s 1.016 s1.168 s1.100 s108 ms9.78 %
Largest Contentful Paint 2.610 s 2.645 s 2.475 s 2.571 s 2.330 s2.571 s2.526 s113 ms4.49 %
Timing metrics
First Paint 1.416 s 1.448 s 1.183 s 1.428 s 1.266 s1.416 s1.348 s105 ms7.78 %
First Contentful Paint 1.168 s 1.202 s 931 ms 1.185 s 1.016 s1.168 s1.100 s108 ms9.78 %
Largest Contentful Paint 2.610 s 2.645 s 2.475 s 2.571 s 2.330 s2.571 s2.526 s113 ms4.49 %
Load Event End 2.814 s 3.275 s 2.660 s 3.166 s 2.957 s2.957 s2.974 s224 ms7.55 %
Server Response Time 194 ms 195 ms 194 ms 194 ms 195 ms194 ms194 ms0 ms0.25 %
TTFB 579 ms 606 ms 515 ms 603 ms 599 ms599 ms580 ms34 ms5.86 %
Page Load Time 2.813 s 3.274 s 2.660 s 3.166 s 2.957 s2.957 s2.974 s224 ms7.54 %
First Visual Change 1.467 s 1.500 s 1.233 s 1.467 s 1.333 s1.467 s1.400 s101 ms7.24 %
Last Visual Change 3.700 s 3.833 s 3.400 s 3.700 s 3.633 s3.700 s3.653 s142 ms3.89 %
Speed Index 1.613 s 1.640 s 1.401 s 1.604 s 1.472 s1.604 s1.546 s93 ms6.01 %
Visual Readiness 2.233 s 2.333 s 2.167 s 2.233 s 2.300 s2.233 s2.253 s58 ms2.57 %
Visual Complete 95 2.600 s 2.500 s 2.500 s 2.400 s 2.366 s2.500 s2.473 s83 ms3.35 %
Visual Complete 99 2.600 s 2.766 s 2.500 s 2.700 s 2.366 s2.600 s2.586 s142 ms5.51 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 52 ms 51 ms 53 ms 53 ms52 ms52 ms1 ms1.72 %
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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1 B0.00 %
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 1.3 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 %