Metrics per run

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

Tested 2025-08-26 23:52:25 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 668 ms 516 ms 516 ms 636 ms 516 ms516 ms570 ms67 ms11.81 %
First Contentful Paint 1.338 s 999 ms 1.084 s 1.067 s 1.101 s1.084 s1.118 s115 ms10.33 %
Largest Contentful Paint 2.255 s 2.589 s 2.532 s 2.519 s 2.289 s2.519 s2.437 s137 ms5.62 %
Interaction to Next Paint 235.74 ms NaN s NaN s NaN s NaN s236 ms236 ms0 ms0.00 %
Timing metrics
First Paint 1.352 s 1.243 s 1.320 s 1.304 s 1.330 s1.320 s1.310 s37 ms2.81 %
First Contentful Paint 1.338 s 999 ms 1.084 s 1.067 s 1.101 s1.084 s1.118 s115 ms10.33 %
Largest Contentful Paint 2.255 s 2.589 s 2.532 s 2.519 s 2.289 s2.519 s2.437 s137 ms5.62 %
Load Event End 3.048 s 2.712 s 2.861 s 2.993 s 2.771 s2.861 s2.877 s128 ms4.44 %
Server Response Time 243 ms 196 ms 194 ms 195 ms 194 ms195 ms204 ms19 ms9.45 %
TTFB 668 ms 516 ms 516 ms 636 ms 516 ms516 ms570 ms67 ms11.81 %
Page Load Time 3.047 s 2.712 s 2.861 s 2.993 s 2.771 s2.861 s2.877 s127 ms4.43 %
First Visual Change 1.400 s 1.300 s 1.367 s 1.366 s 1.367 s1.367 s1.360 s33 ms2.40 %
Last Visual Change 3.733 s 3.667 s 3.667 s 3.700 s 3.767 s3.700 s3.707 s39 ms1.05 %
Speed Index 1.528 s 1.478 s 1.501 s 1.506 s 1.499 s1.501 s1.502 s16 ms1.06 %
Visual Readiness 2.333 s 2.367 s 2.300 s 2.334 s 2.400 s2.334 s2.347 s34 ms1.45 %
Visual Complete 95 2.267 s 2.600 s 2.333 s 2.400 s 2.267 s2.333 s2.373 s124 ms5.21 %
Visual Complete 99 2.600 s 2.600 s 2.533 s 2.400 s 2.500 s2.533 s2.527 s74 ms2.94 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 52 ms 52 ms 52 ms 52 ms52 ms52 ms0 ms0.77 %
Page metrics
DOM elements 20858 20858 20858 20858 20858208582085800.00 %
Document height 45869 45869 45869 45869 45869458694586900.00 %
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 MB1 B0.00 %
HTML Transfer Size 243.4 KB 243.4 KB 243.4 KB 243.4 KB 243.4 KB243.4 KB243.4 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 33.0 KB 33.0 KB 33.0 KB 33.0 KB 33.0 KB33.0 KB33.0 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 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %