Metrics per run

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

Tested 2026-06-01 16:08:07 using Firefox 150.0.3 (runtime settings)

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 407 ms 408 ms 407 ms 408 ms 411 ms408 ms408 ms1 ms0.36 %
Largest Contentful Paint 2.454 s 2.186 s 2.187 s 2.209 s 2.101 s2.187 s2.227 s119 ms5.35 %
Timing metrics
First Paint 1.326 s 1.302 s 1.311 s 1.275 s 1.249 s1.302 s1.293 s27 ms2.12 %
Largest Contentful Paint 2.454 s 2.186 s 2.187 s 2.209 s 2.101 s2.187 s2.227 s119 ms5.35 %
Load Event End 2.337 s 2.350 s 2.351 s 2.123 s 2.321 s2.337 s2.296 s87 ms3.81 %
Server Response Time 107 ms 107 ms 107 ms 107 ms 110 ms107 ms108 ms1 ms1.12 %
TTFB 407 ms 408 ms 407 ms 408 ms 411 ms408 ms408 ms1 ms0.36 %
Page Load Time 2.337 s 2.349 s 2.351 s 2.122 s 2.321 s2.337 s2.296 s88 ms3.82 %
First Visual Change 1.400 s 1.333 s 1.367 s 1.333 s 1.300 s1.333 s1.347 s34 ms2.53 %
Last Visual Change 3.700 s 3.733 s 3.667 s 3.267 s 3.633 s3.667 s3.600 s170 ms4.72 %
Speed Index 1.655 s 1.598 s 1.614 s 1.549 s 1.579 s1.598 s1.599 s35 ms2.21 %
Visual Readiness 2.300 s 2.400 s 2.300 s 1.934 s 2.333 s2.300 s2.253 s164 ms7.27 %
Visual Complete 95 2.567 s 2.600 s 2.567 s 2.233 s 2.600 s2.567 s2.513 s141 ms5.61 %
Visual Complete 99 2.633 s 2.667 s 2.667 s 2.233 s 2.600 s2.633 s2.560 s165 ms6.46 %
CPU metrics
Browser metrics
CPU benchmark score 77 ms 82 ms 77 ms 79 ms 77 ms77 ms78 ms2 ms2.50 %
Page metrics
DOM elements 22203 22203 22203 22199 22199222032220120.01 %
Document height 50540 50540 50540 50535 50535505405053820.00 %
Total Requests 64 64 64 66 66646511.51 %
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 1.4 MB 1.4 MB 1.4 MB 1.3 MB 1.3 MB1.4 MB1.3 MB49.5 KB3.61 %
HTML Transfer Size 264.2 KB 264.2 KB 264.2 KB 264.2 KB 264.2 KB264.2 KB264.2 KB0 b0.00 %
JavaScript Transfer Size 312.3 KB 312.2 KB 312.2 KB 311.3 KB 311.3 KB312.2 KB311.9 KB472 B0.15 %
CSS Transfer Size 28.1 KB 28.1 KB 28.1 KB 28.1 KB 28.1 KB28.1 KB28.1 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 80.2 KB 80.2 KB 80.2 KB 86.3 KB 86.3 KB80.2 KB82.7 KB3.0 KB3.58 %
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 66 66646511.51 %
First Party Total Transfer Size 1.4 MB 1.4 MB 1.4 MB 1.3 MB 1.3 MB1.4 MB1.3 MB49.5 KB3.61 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %