Metrics per run

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

Tested 2025-08-28 08:54:57 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 669 ms 495 ms 623 ms 620 ms 517 ms620 ms585 ms67 ms11.46 %
First Contentful Paint 1.135 s 1.135 s 1.084 s 1.253 s 1.084 s1.135 s1.138 s62 ms5.43 %
Largest Contentful Paint 2.383 s 2.455 s 2.419 s 2.553 s 2.339 s2.419 s2.430 s73 ms2.99 %
Timing metrics
First Paint 1.383 s 1.370 s 1.319 s 1.487 s 1.329 s1.370 s1.378 s60 ms4.34 %
First Contentful Paint 1.135 s 1.135 s 1.084 s 1.253 s 1.084 s1.135 s1.138 s62 ms5.43 %
Largest Contentful Paint 2.383 s 2.455 s 2.419 s 2.553 s 2.339 s2.419 s2.430 s73 ms2.99 %
Load Event End 3.171 s 2.903 s 3.107 s 2.983 s 2.893 s2.983 s3.011 s111 ms3.67 %
Server Response Time 265 ms 193 ms 238 ms 194 ms 197 ms197 ms217 ms29 ms13.41 %
TTFB 669 ms 495 ms 623 ms 620 ms 517 ms620 ms585 ms67 ms11.46 %
Page Load Time 3.170 s 2.903 s 3.106 s 2.983 s 2.893 s2.983 s3.011 s110 ms3.66 %
First Visual Change 1.433 s 1.400 s 1.333 s 1.533 s 1.367 s1.400 s1.413 s69 ms4.85 %
Last Visual Change 3.800 s 3.733 s 3.567 s 3.833 s 3.667 s3.733 s3.720 s95 ms2.57 %
Speed Index 1.560 s 1.536 s 1.485 s 1.666 s 1.504 s1.536 s1.550 s63 ms4.09 %
Visual Readiness 2.367 s 2.333 s 2.234 s 2.300 s 2.300 s2.300 s2.307 s44 ms1.91 %
Visual Complete 95 2.267 s 2.333 s 2.400 s 2.467 s 2.333 s2.333 s2.360 s68 ms2.88 %
Visual Complete 99 2.500 s 2.433 s 2.533 s 2.567 s 2.600 s2.533 s2.527 s57 ms2.28 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 54 ms 53 ms 51 ms 53 ms53 ms53 ms1 ms1.94 %
Page metrics
DOM elements 20856 20856 20856 20856 20856208562085600.00 %
Document height 45843 45843 45843 45843 45843458434584300.00 %
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 243.6 KB 243.6 KB 243.6 KB 243.6 KB 243.6 KB243.6 KB243.6 KB0 b0.00 %
JavaScript Transfer Size 368.3 KB 368.3 KB 368.3 KB 368.3 KB 368.3 KB368.3 KB368.3 KB1 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 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %