Metrics per run

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

Tested 2025-08-27 14:54:11 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 513 ms 523 ms 496 ms 497 ms 545 ms513 ms515 ms18 ms3.53 %
First Contentful Paint 1.067 s 914 ms 965 ms 965 ms 948 ms965 ms972 ms51 ms5.26 %
Largest Contentful Paint 2.709 s 2.464 s 2.894 s 2.543 s 2.661 s2.661 s2.654 s148 ms5.57 %
Timing metrics
First Paint 1.402 s 1.240 s 1.303 s 1.301 s 1.284 s1.301 s1.306 s53 ms4.06 %
First Contentful Paint 1.067 s 914 ms 965 ms 965 ms 948 ms965 ms972 ms51 ms5.26 %
Largest Contentful Paint 2.709 s 2.464 s 2.894 s 2.543 s 2.661 s2.661 s2.654 s148 ms5.57 %
Load Event End 2.969 s 2.707 s 3.176 s 3.423 s 3.135 s3.135 s3.082 s237 ms7.70 %
Server Response Time 194 ms 194 ms 194 ms 194 ms 195 ms194 ms194 ms0 ms0.21 %
TTFB 513 ms 523 ms 496 ms 497 ms 545 ms513 ms515 ms18 ms3.53 %
Page Load Time 2.969 s 2.707 s 3.175 s 3.423 s 3.134 s3.134 s3.082 s237 ms7.69 %
First Visual Change 1.433 s 1.300 s 1.333 s 1.333 s 1.333 s1.333 s1.346 s45 ms3.35 %
Last Visual Change 4.433 s 4.133 s 4.133 s 4.000 s 3.833 s4.133 s4.106 s197 ms4.80 %
Speed Index 1.621 s 1.470 s 1.552 s 1.514 s 1.506 s1.514 s1.533 s51 ms3.35 %
Visual Readiness 3.000 s 2.833 s 2.800 s 2.667 s 2.500 s2.800 s2.760 s168 ms6.08 %
Visual Complete 95 2.733 s 2.467 s 2.900 s 2.567 s 2.666 s2.666 s2.667 s147 ms5.53 %
Visual Complete 99 2.967 s 2.700 s 3.167 s 3.133 s 2.966 s2.967 s2.987 s165 ms5.54 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 52 ms 53 ms 53 ms 52 ms52 ms52 ms1 ms1.43 %
Page metrics
DOM elements 20875 20875 20875 20875 20875208752087500.00 %
Document height 46011 46011 46011 46011 46011460114601100.00 %
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 243.8 KB 243.8 KB 243.8 KB 243.8 KB 243.8 KB243.8 KB243.8 KB0 b0.00 %
JavaScript Transfer Size 370.1 KB 370.1 KB 370.1 KB 370.1 KB 370.1 KB370.1 KB370.1 KB0 b0.00 %
CSS Transfer Size 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 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 33.1 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 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 %