Metrics per run

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

Tested 2026-04-29 19:07:27 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 416 ms 435 ms 436 ms 408 ms 425 ms425 ms424 ms11 ms2.55 %
First Contentful Paint 1.235 s 1.248 s 1.242 s 1.250 s 1.280 s1.248 s1.251 s15 ms1.23 %
Largest Contentful Paint 2.271 s 2.034 s 2.162 s 2.227 s 2.013 s2.162 s2.141 s103 ms4.79 %
Interaction to Next Paint 272 ms 264 ms 256 ms NaN s 288 ms268 ms270 ms12 ms4.38 %
Timing metrics
First Paint 1.234 s 1.247 s 1.241 s 1.250 s 1.280 s1.247 s1.250 s16 ms1.26 %
First Contentful Paint 1.235 s 1.248 s 1.242 s 1.250 s 1.280 s1.248 s1.251 s15 ms1.23 %
Largest Contentful Paint 2.271 s 2.034 s 2.162 s 2.227 s 2.013 s2.162 s2.141 s103 ms4.79 %
Load Event End 2.383 s 2.248 s 2.283 s 2.332 s 2.382 s2.332 s2.326 s54 ms2.30 %
Server Response Time 104 ms 104 ms 105 ms 104 ms 104 ms104 ms104 ms0 ms0.38 %
TTFB 416 ms 435 ms 436 ms 408 ms 425 ms425 ms424 ms11 ms2.55 %
Page Load Time 2.383 s 2.247 s 2.282 s 2.332 s 2.381 s2.332 s2.325 s54 ms2.31 %
First Visual Change 1.300 s 1.300 s 1.300 s 1.300 s 1.333 s1.300 s1.307 s13 ms1.01 %
Last Visual Change 3.433 s 3.566 s 3.566 s 9.633 s 3.700 s3.566 s4.780 s2.428 s50.80 %
Speed Index 1.413 s 1.413 s 1.413 s 1.554 s 1.439 s1.413 s1.446 s55 ms3.78 %
Visual Readiness 2.133 s 2.266 s 2.266 s 8.333 s 2.367 s2.266 s3.473 s2.431 s70.00 %
Visual Complete 95 2.133 s 2.033 s 2.033 s 2.100 s 2.033 s2.033 s2.066 s42 ms2.04 %
Visual Complete 99 2.400 s 2.266 s 2.300 s 9.633 s 2.400 s2.400 s3.800 s2.917 s76.77 %
CPU metrics
Browser metrics
CPU benchmark score 78 ms 80 ms 76 ms 77 ms 80 ms78 ms78 ms2 ms2.05 %
Page metrics
DOM elements 21898 21898 21898 21898 21898218982189800.00 %
Document height 49218 49218 49218 49218 49218492184921800.00 %
Total Requests 62 62 62 62 62626200.00 %
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 MB4.5 KB0.37 %
HTML Transfer Size 258.5 KB 258.5 KB 258.5 KB 258.5 KB 258.5 KB258.5 KB258.5 KB0 b0.00 %
JavaScript Transfer Size 305.0 KB 305.0 KB 305.0 KB 305.0 KB 305.0 KB305.0 KB305.0 KB0 b0.00 %
CSS Transfer Size 27.6 KB 27.6 KB 27.6 KB 27.6 KB 27.6 KB27.6 KB27.6 KB0 b0.00 %
Font Transfer Size 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 KB2.0 KB2.0 KB0 b0.00 %
SVG Transfer Size 81.6 KB 81.6 KB 81.6 KB 81.6 KB 81.6 KB81.6 KB81.6 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 62 62 62 62 62626200.00 %
First Party Total Transfer Size 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB4.5 KB0.37 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %