Metrics per run

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

Tested 2025-08-29 18:02:11 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 515 ms 598 ms 517 ms 552 ms 514 ms517 ms539 ms33 ms6.06 %
First Contentful Paint 1.168 s 1.185 s 1.084 s 982 ms 965 ms1.084 s1.077 s91 ms8.47 %
Largest Contentful Paint 2.590 s 2.429 s 2.492 s 1.847 s 2.442 s2.442 s2.360 s263 ms11.13 %
Timing metrics
First Paint 1.405 s 1.431 s 1.344 s 1.218 s 1.248 s1.344 s1.329 s84 ms6.32 %
First Contentful Paint 1.168 s 1.185 s 1.084 s 982 ms 965 ms1.084 s1.077 s91 ms8.47 %
Largest Contentful Paint 2.590 s 2.429 s 2.492 s 1.847 s 2.442 s2.442 s2.360 s263 ms11.13 %
Load Event End 2.849 s 3.171 s 2.807 s 2.909 s 2.659 s2.849 s2.879 s168 ms5.83 %
Server Response Time 194 ms 195 ms 198 ms 195 ms 194 ms195 ms195 ms1 ms0.75 %
TTFB 515 ms 598 ms 517 ms 552 ms 514 ms517 ms539 ms33 ms6.06 %
Page Load Time 2.848 s 3.170 s 2.807 s 2.908 s 2.659 s2.848 s2.878 s167 ms5.81 %
First Visual Change 1.433 s 1.500 s 1.400 s 1.266 s 1.300 s1.400 s1.380 s86 ms6.23 %
Last Visual Change 3.900 s 3.766 s 3.867 s 3.500 s 3.533 s3.766 s3.713 s167 ms4.49 %
Speed Index 1.584 s 1.619 s 1.549 s 1.332 s 1.416 s1.549 s1.500 s109 ms7.24 %
Visual Readiness 2.467 s 2.266 s 2.467 s 2.234 s 2.233 s2.266 s2.333 s110 ms4.70 %
Visual Complete 95 2.500 s 2.300 s 2.467 s 1.800 s 2.166 s2.300 s2.247 s254 ms11.29 %
Visual Complete 99 2.600 s 2.733 s 2.600 s 2.466 s 2.366 s2.600 s2.553 s126 ms4.93 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 61 ms 52 ms 53 ms 51 ms52 ms54 ms4 ms6.79 %
Page metrics
DOM elements 20837 20837 20837 20837 20837208372083700.00 %
Document height 45820 45820 45820 45820 45820458204582000.00 %
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 MB176 B0.01 %
HTML Transfer Size 243.2 KB 243.2 KB 243.2 KB 243.2 KB 243.2 KB243.2 KB243.2 KB0 b0.00 %
JavaScript Transfer Size 370.5 KB 370.5 KB 370.5 KB 370.5 KB 370.5 KB370.5 KB370.5 KB10 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 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 MB176 B0.01 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %