Metrics per run

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

Tested 2025-12-07 12:47:48 using Firefox 144.0.2 (runtime settings).

Side by side

Metric1234567MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 514 ms 500 ms 499 ms 499 ms 497 ms 515 ms 515 ms500 ms506 ms8 ms1.57 %
First Contentful Paint 931 ms 914 ms 914 ms 914 ms 914 ms 949 ms 932 ms914 ms924 ms13 ms1.38 %
Largest Contentful Paint 1.627 s 2.238 s 2.040 s 2.406 s 2.238 s 2.221 s 2.103 s2.221 s2.125 s230 ms10.81 %
Timing metrics
First Paint 1.198 s 1.197 s 1.185 s 1.186 s 1.193 s 1.211 s 1.205 s1.197 s1.196 s9 ms0.73 %
First Contentful Paint 931 ms 914 ms 914 ms 914 ms 914 ms 949 ms 932 ms914 ms924 ms13 ms1.38 %
Largest Contentful Paint 1.627 s 2.238 s 2.040 s 2.406 s 2.238 s 2.221 s 2.103 s2.221 s2.125 s230 ms10.81 %
Load Event End 2.263 s 2.736 s 2.509 s 2.410 s 2.494 s 2.273 s 2.337 s2.410 s2.432 s154 ms6.32 %
Server Response Time 193 ms 194 ms 195 ms 195 ms 195 ms 195 ms 195 ms195 ms195 ms1 ms0.37 %
TTFB 514 ms 500 ms 499 ms 499 ms 497 ms 515 ms 515 ms500 ms506 ms8 ms1.57 %
Page Load Time 2.263 s 2.736 s 2.509 s 2.409 s 2.494 s 2.273 s 2.336 s2.409 s2.431 s154 ms6.33 %
First Visual Change 1.266 s 1.233 s 1.233 s 1.233 s 1.266 s 1.267 s 1.266 s1.266 s1.252 s16 ms1.31 %
Last Visual Change 12.900 s 12.500 s 12.700 s 13.067 s 12.700 s 12.500 s 12.700 s12.700 s12.724 s189 ms1.49 %
Speed Index 3.246 s 3.184 s 3.250 s 3.352 s 3.244 s 3.223 s 3.247 s3.246 s3.249 s47 ms1.45 %
Visual Readiness 11.634 s 11.267 s 11.467 s 11.834 s 11.434 s 11.233 s 11.434 s11.434 s11.472 s192 ms1.68 %
Visual Complete 95 11.466 s 11.333 s 11.433 s 11.833 s 11.433 s 11.400 s 11.600 s11.433 s11.500 s155 ms1.35 %
Visual Complete 99 12.733 s 12.233 s 12.500 s 12.900 s 12.466 s 12.233 s 12.433 s12.466 s12.500 s228 ms1.82 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 51 ms 51 ms 51 ms 78 ms 77 ms 77 ms51 ms62 ms13 ms20.93 %
Page metrics
DOM elements 21593 21593 21593 21593 21593 21593 21593215932159300.00 %
Document height 47033 47033 47033 47033 47033 47033 47033470334703300.00 %
Total Requests 65 65 65 65 65 65 65656500.00 %
HTML Requests 1 1 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 9 9 99900.00 %
CSS Requests 2 2 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0 0 0000N/A
Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB2 B0.00 %
HTML Transfer Size 249.7 KB 249.7 KB 249.7 KB 249.7 KB 249.7 KB 249.7 KB 249.7 KB249.7 KB249.7 KB0 b0.00 %
JavaScript Transfer Size 402.5 KB 402.5 KB 402.5 KB 402.5 KB 402.5 KB 402.5 KB 402.5 KB402.5 KB402.5 KB1 B0.00 %
CSS Transfer Size 27.2 KB 27.2 KB 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 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 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
Plain Transfer Size 683 B 683 B 683 B 683 B 683 B 683 B 683 B683 B683 B0 b0.00 %
SVG Transfer Size 33.1 KB 33.1 KB 33.1 KB 33.1 KB 33.1 KB 33.1 KB 33.1 KB33.1 KB33.1 KB0 b0.00 %
Total Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
JavaScript Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
Image Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 0 b 0 b 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Plain Content Size 0 b 0 b 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 b 0 b 0 b0 b0 b0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 65 65 65 65 65 65 65656500.00 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %