Metrics per run

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

Tested 2025-08-28 17:55:08 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 497 ms 581 ms 555 ms 499 ms 664 ms555 ms559 ms62 ms11.01 %
First Contentful Paint 1.050 s 1.016 s 982 ms 948 ms 1.152 s1.016 s1.030 s70 ms6.80 %
Largest Contentful Paint 2.340 s 2.220 s 2.283 s 2.396 s 2.392 s2.340 s2.326 s67 ms2.89 %
Timing metrics
First Paint 1.284 s 1.241 s 1.208 s 1.198 s 1.396 s1.241 s1.265 s72 ms5.68 %
First Contentful Paint 1.050 s 1.016 s 982 ms 948 ms 1.152 s1.016 s1.030 s70 ms6.80 %
Largest Contentful Paint 2.340 s 2.220 s 2.283 s 2.396 s 2.392 s2.340 s2.326 s67 ms2.89 %
Load Event End 2.647 s 2.839 s 2.875 s 2.682 s 3.222 s2.839 s2.853 s204 ms7.16 %
Server Response Time 194 ms 194 ms 193 ms 197 ms 238 ms194 ms203 ms17 ms8.59 %
TTFB 497 ms 581 ms 555 ms 499 ms 664 ms555 ms559 ms62 ms11.01 %
Page Load Time 2.647 s 2.838 s 2.875 s 2.681 s 3.221 s2.838 s2.852 s204 ms7.15 %
First Visual Change 1.333 s 1.267 s 1.266 s 1.266 s 1.466 s1.267 s1.320 s78 ms5.88 %
Last Visual Change 3.467 s 3.600 s 3.466 s 3.566 s 3.733 s3.566 s3.566 s99 ms2.77 %
Speed Index 1.476 s 1.407 s 1.399 s 1.407 s 1.585 s1.407 s1.455 s71 ms4.87 %
Visual Readiness 2.134 s 2.333 s 2.200 s 2.300 s 2.267 s2.267 s2.247 s72 ms3.18 %
Visual Complete 95 2.333 s 2.233 s 2.166 s 2.300 s 2.266 s2.266 s2.260 s57 ms2.54 %
Visual Complete 99 2.433 s 2.300 s 2.433 s 2.300 s 2.700 s2.433 s2.433 s146 ms6.00 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 51 ms 53 ms 51 ms 52 ms51 ms52 ms1 ms1.55 %
Page metrics
DOM elements 20837 20837 20837 20837 20837208372083700.00 %
Document height 45794 45794 45794 45794 45794457944579400.00 %
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 MB0 b0.00 %
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 368.3 KB 368.3 KB 368.3 KB 368.3 KB 368.3 KB368.3 KB368.3 KB0 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 MB0 b0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %