Metrics per run

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

Tested 2025-08-25 20:47:14 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 622 ms 514 ms 584 ms 614 ms 615 ms614 ms590 ms40 ms6.80 %
First Contentful Paint 1.219 s 1.067 s 1.016 s 1.084 s 1.185 s1.084 s1.114 s76 ms6.81 %
Largest Contentful Paint 2.390 s 2.692 s 2.611 s 2.424 s 2.714 s2.611 s2.566 s135 ms5.26 %
Timing metrics
First Paint 1.511 s 1.361 s 1.287 s 1.371 s 1.457 s1.371 s1.397 s78 ms5.60 %
First Contentful Paint 1.219 s 1.067 s 1.016 s 1.084 s 1.185 s1.084 s1.114 s76 ms6.81 %
Largest Contentful Paint 2.390 s 2.692 s 2.611 s 2.424 s 2.714 s2.611 s2.566 s135 ms5.26 %
Load Event End 3.452 s 3.367 s 3.033 s 3.185 s 3.122 s3.185 s3.232 s155 ms4.80 %
Server Response Time 277 ms 195 ms 195 ms 229 ms 195 ms195 ms218 ms32 ms14.76 %
TTFB 622 ms 514 ms 584 ms 614 ms 615 ms614 ms590 ms40 ms6.80 %
Page Load Time 3.451 s 3.366 s 3.033 s 3.184 s 3.122 s3.184 s3.231 s155 ms4.79 %
First Visual Change 1.567 s 1.400 s 1.333 s 1.433 s 1.533 s1.433 s1.453 s86 ms5.92 %
Last Visual Change 4.333 s 3.833 s 3.766 s 4.133 s 4.200 s4.133 s4.053 s218 ms5.37 %
Speed Index 1.697 s 1.554 s 1.482 s 1.573 s 1.685 s1.573 s1.598 s82 ms5.11 %
Visual Readiness 2.766 s 2.433 s 2.433 s 2.700 s 2.667 s2.667 s2.600 s140 ms5.38 %
Visual Complete 95 2.400 s 2.433 s 2.366 s 2.433 s 2.533 s2.433 s2.433 s56 ms2.29 %
Visual Complete 99 3.267 s 2.967 s 2.866 s 3.033 s 3.066 s3.033 s3.040 s133 ms4.36 %
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 20877 20877 20877 20877 20877208772087700.00 %
Document height 45888 45888 45888 45888 45888458884588800.00 %
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 MB2 B0.00 %
HTML Transfer Size 243.7 KB 243.7 KB 243.7 KB 243.7 KB 243.7 KB243.7 KB243.7 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 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 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 MB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %