Metrics per run

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

Tested 2025-08-28 02:55:01 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 653 ms 515 ms 546 ms 617 ms 585 ms585 ms583 ms49 ms8.42 %
First Contentful Paint 1.118 s 931 ms 999 ms 1.168 s 1.017 s1.017 s1.047 s85 ms8.15 %
Largest Contentful Paint 2.373 s 2.492 s 2.558 s 2.375 s 2.560 s2.492 s2.472 s83 ms3.37 %
Timing metrics
First Paint 1.354 s 1.180 s 1.238 s 1.401 s 1.246 s1.246 s1.284 s81 ms6.32 %
First Contentful Paint 1.118 s 931 ms 999 ms 1.168 s 1.017 s1.017 s1.047 s85 ms8.15 %
Largest Contentful Paint 2.373 s 2.492 s 2.558 s 2.375 s 2.560 s2.492 s2.472 s83 ms3.37 %
Load Event End 2.818 s 2.477 s 2.970 s 3.302 s 2.946 s2.946 s2.903 s266 ms9.17 %
Server Response Time 251 ms 194 ms 194 ms 193 ms 195 ms194 ms205 ms23 ms11.10 %
TTFB 653 ms 515 ms 546 ms 617 ms 585 ms585 ms583 ms49 ms8.42 %
Page Load Time 2.818 s 2.477 s 2.970 s 3.301 s 2.946 s2.946 s2.902 s266 ms9.16 %
First Visual Change 1.400 s 1.233 s 1.300 s 1.433 s 1.300 s1.300 s1.333 s73 ms5.48 %
Last Visual Change 3.800 s 3.467 s 3.533 s 3.700 s 3.533 s3.533 s3.607 s124 ms3.43 %
Speed Index 1.532 s 1.400 s 1.453 s 1.567 s 1.451 s1.453 s1.481 s60 ms4.08 %
Visual Readiness 2.400 s 2.234 s 2.233 s 2.267 s 2.233 s2.234 s2.273 s65 ms2.84 %
Visual Complete 95 2.300 s 2.467 s 2.367 s 2.367 s 2.467 s2.367 s2.394 s65 ms2.70 %
Visual Complete 99 2.500 s 2.467 s 2.500 s 2.567 s 2.467 s2.500 s2.500 s37 ms1.46 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 52 ms 52 ms 51 ms 51 ms52 ms52 ms1 ms1.44 %
Page metrics
DOM elements 20856 20856 20856 20856 20856208562085600.00 %
Document height 45843 45843 45843 45843 45843458434584300.00 %
Total Requests 64 86 64 64 646468912.87 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 7 8 7 7 77705.56 %
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 MB9.0 KB0.73 %
HTML Transfer Size 243.6 KB 243.6 KB 243.6 KB 243.6 KB 243.6 KB243.6 KB243.6 KB0 b0.00 %
JavaScript Transfer Size 368.1 KB 371.3 KB 368.1 KB 368.1 KB 368.1 KB368.1 KB368.7 KB1.3 KB0.35 %
CSS Transfer Size 27.2 KB 27.2 KB 27.2 KB 27.2 KB 27.2 KB27.2 KB27.2 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 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 86 64 64 646468912.87 %
First Party Total Transfer Size 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB9.0 KB0.73 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %