Metrics per run

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

Tested 2025-08-27 11:53:39 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 584 ms 515 ms 596 ms 608 ms 654 ms596 ms591 ms45 ms7.60 %
First Contentful Paint 1.033 s 1.423 s 1.016 s 1.033 s 1.135 s1.033 s1.128 s153 ms13.60 %
Largest Contentful Paint 2.203 s 2.514 s 2.662 s 2.475 s 2.306 s2.475 s2.432 s161 ms6.62 %
Timing metrics
First Paint 1.361 s 1.434 s 1.334 s 1.362 s 1.464 s1.362 s1.391 s49 ms3.55 %
First Contentful Paint 1.033 s 1.423 s 1.016 s 1.033 s 1.135 s1.033 s1.128 s153 ms13.60 %
Largest Contentful Paint 2.203 s 2.514 s 2.662 s 2.475 s 2.306 s2.475 s2.432 s161 ms6.62 %
Load Event End 2.983 s 3.481 s 3.235 s 3.496 s 2.249 s3.235 s3.089 s460 ms14.89 %
Server Response Time 194 ms 194 ms 194 ms 195 ms 234 ms194 ms202 ms16 ms7.87 %
TTFB 584 ms 515 ms 596 ms 608 ms 654 ms596 ms591 ms45 ms7.60 %
Page Load Time 2.983 s 3.481 s 3.235 s 3.495 s 2.249 s3.235 s3.089 s460 ms14.88 %
First Visual Change 1.433 s 1.467 s 1.400 s 1.433 s 1.533 s1.433 s1.453 s45 ms3.11 %
Last Visual Change 4.433 s 4.300 s 4.233 s 4.466 s 4.433 s4.433 s4.373 s90 ms2.07 %
Speed Index 1.560 s 1.625 s 1.540 s 1.589 s 1.658 s1.589 s1.594 s43 ms2.68 %
Visual Readiness 3.000 s 2.833 s 2.833 s 3.033 s 2.900 s2.900 s2.920 s83 ms2.85 %
Visual Complete 95 2.233 s 2.500 s 2.433 s 2.466 s 2.333 s2.433 s2.393 s98 ms4.08 %
Visual Complete 99 3.000 s 3.100 s 3.066 s 3.000 s 3.233 s3.066 s3.080 s86 ms2.79 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 51 ms 52 ms 51 ms 53 ms52 ms52 ms1 ms1.72 %
Page metrics
DOM elements 20877 20877 20877 20877 20877208772087700.00 %
Document height 45985 45985 45985 45985 45985459854598500.00 %
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 MB1 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 KB1 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 MB1 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %