Metrics per run

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

Tested 2025-09-17 18:36:37 using Firefox 142.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 561 ms 516 ms 519 ms 519 ms 521 ms519 ms527 ms17 ms3.22 %
First Contentful Paint 1.253 s 1.457 s 949 ms 1.101 s 949 ms1.101 s1.142 s194 ms16.97 %
Largest Contentful Paint 2.350 s 2.516 s 2.476 s 2.510 s 2.427 s2.476 s2.456 s62 ms2.51 %
Timing metrics
First Paint 1.551 s 1.471 s 1.236 s 1.408 s 1.235 s1.408 s1.380 s127 ms9.17 %
First Contentful Paint 1.253 s 1.457 s 949 ms 1.101 s 949 ms1.101 s1.142 s194 ms16.97 %
Largest Contentful Paint 2.350 s 2.516 s 2.476 s 2.510 s 2.427 s2.476 s2.456 s62 ms2.51 %
Load Event End 2.290 s 2.719 s 2.516 s 2.614 s 2.514 s2.516 s2.531 s142 ms5.61 %
Server Response Time 257 ms 194 ms 193 ms 195 ms 195 ms195 ms207 ms25 ms12.14 %
TTFB 561 ms 516 ms 519 ms 519 ms 521 ms519 ms527 ms17 ms3.22 %
Page Load Time 2.290 s 2.719 s 2.515 s 2.613 s 2.514 s2.515 s2.530 s142 ms5.61 %
First Visual Change 1.633 s 1.533 s 1.267 s 1.500 s 1.267 s1.500 s1.440 s148 ms10.27 %
Last Visual Change 3.900 s 3.767 s 3.500 s 3.633 s 3.533 s3.633 s3.667 s149 ms4.07 %
Speed Index 1.842 s 1.756 s 1.532 s 1.738 s 1.532 s1.738 s1.680 s126 ms7.49 %
Visual Readiness 2.267 s 2.234 s 2.233 s 2.133 s 2.266 s2.234 s2.227 s49 ms2.20 %
Visual Complete 95 2.833 s 2.733 s 2.467 s 2.533 s 2.533 s2.533 s2.620 s139 ms5.31 %
Visual Complete 99 2.833 s 2.733 s 2.467 s 2.533 s 2.533 s2.533 s2.620 s139 ms5.31 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 53 ms 52 ms 51 ms 52 ms52 ms52 ms1 ms1.22 %
Page metrics
DOM elements 21013 21013 21013 21013 21013210132101300.00 %
Document height 46091 46091 46091 46091 46091460914609100.00 %
Total Requests 67 67 67 67 67676700.00 %
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 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB2.1 KB0.17 %
HTML Transfer Size 244.8 KB 244.8 KB 244.8 KB 244.8 KB 244.8 KB244.8 KB244.8 KB0 b0.00 %
JavaScript Transfer Size 289.6 KB 289.7 KB 289.6 KB 289.7 KB 289.6 KB289.6 KB289.7 KB45 B0.02 %
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 38.7 KB 38.9 KB 38.9 KB 38.9 KB 38.9 KB38.9 KB38.8 KB76 B0.19 %
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 67 67 67 67 67676700.00 %
First Party Total Transfer Size 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB2.1 KB0.17 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %