Metrics per run

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

Tested 2026-06-05 15:50:44 using Firefox 150.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 408 ms 406 ms 410 ms 408 ms 406 ms408 ms408 ms1 ms0.37 %
Largest Contentful Paint 2.310 s 2.329 s 2.251 s 2.283 s 2.245 s2.283 s2.284 s33 ms1.43 %
Timing metrics
First Paint 1.374 s 1.344 s 1.358 s 1.380 s 1.359 s1.359 s1.363 s13 ms0.93 %
Largest Contentful Paint 2.310 s 2.329 s 2.251 s 2.283 s 2.245 s2.283 s2.284 s33 ms1.43 %
Load Event End 2.589 s 2.423 s 2.453 s 2.504 s 2.446 s2.453 s2.483 s59 ms2.39 %
Server Response Time 109 ms 107 ms 107 ms 107 ms 107 ms107 ms107 ms1 ms0.74 %
TTFB 408 ms 406 ms 410 ms 408 ms 406 ms408 ms408 ms1 ms0.37 %
Page Load Time 2.589 s 2.423 s 2.453 s 2.504 s 2.445 s2.453 s2.483 s59 ms2.39 %
First Visual Change 1.433 s 1.400 s 1.400 s 1.433 s 1.400 s1.400 s1.413 s16 ms1.14 %
Last Visual Change 3.833 s 3.733 s 3.800 s 3.800 s 3.800 s3.800 s3.793 s33 ms0.86 %
Speed Index 1.707 s 1.679 s 1.697 s 1.708 s 1.679 s1.697 s1.694 s13 ms0.76 %
Visual Readiness 2.400 s 2.333 s 2.400 s 2.367 s 2.400 s2.400 s2.380 s27 ms1.12 %
Visual Complete 95 2.800 s 2.733 s 2.767 s 2.767 s 2.767 s2.767 s2.767 s21 ms0.77 %
Visual Complete 99 2.800 s 2.733 s 2.767 s 2.767 s 2.767 s2.767 s2.767 s21 ms0.77 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 81 ms 79 ms 80 ms 81 ms80 ms80 ms1 ms1.88 %
Page metrics
DOM elements 22223 22223 22223 22223 22223222232222300.00 %
Document height 50633 50633 50633 50633 50633506335063300.00 %
Total Requests 66 66 65 65 66666600.75 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 8 8 8 8 88800.00 %
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 MB1.9 KB0.14 %
HTML Transfer Size 264.6 KB 264.6 KB 264.6 KB 264.6 KB 264.6 KB264.6 KB264.6 KB0 b0.00 %
JavaScript Transfer Size 310.9 KB 310.9 KB 310.9 KB 310.9 KB 310.9 KB310.9 KB310.9 KB1 B0.00 %
CSS Transfer Size 28.1 KB 28.1 KB 28.1 KB 28.1 KB 28.1 KB28.1 KB28.1 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 89.1 KB 89.3 KB 89.1 KB 89.1 KB 89.3 KB89.1 KB89.2 KB93 B0.10 %
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 66 66 65 65 66666600.75 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB1.9 KB0.14 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %