Metrics per run

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

Tested 2025-08-29 15:01:25 using Firefox 141.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 694 ms 553 ms 624 ms 527 ms 630 ms624 ms606 ms59 ms9.82 %
First Contentful Paint 1.118 s 982 ms 1.220 s 1.050 s 1.254 s1.118 s1.125 s102 ms9.05 %
Largest Contentful Paint 2.373 s 2.169 s 2.390 s 2.511 s 2.017 s2.373 s2.292 s176 ms7.68 %
Timing metrics
First Paint 1.351 s 1.229 s 1.450 s 1.316 s 1.486 s1.351 s1.366 s93 ms6.78 %
First Contentful Paint 1.118 s 982 ms 1.220 s 1.050 s 1.254 s1.118 s1.125 s102 ms9.05 %
Largest Contentful Paint 2.373 s 2.169 s 2.390 s 2.511 s 2.017 s2.373 s2.292 s176 ms7.68 %
Load Event End 3.119 s 2.851 s 3.267 s 2.832 s 2.973 s2.973 s3.008 s165 ms5.49 %
Server Response Time 197 ms 196 ms 195 ms 194 ms 195 ms195 ms195 ms1 ms0.52 %
TTFB 694 ms 553 ms 624 ms 527 ms 630 ms624 ms606 ms59 ms9.82 %
Page Load Time 3.119 s 2.851 s 3.267 s 2.831 s 2.972 s2.972 s3.008 s165 ms5.50 %
First Visual Change 1.400 s 1.267 s 1.500 s 1.366 s 1.533 s1.400 s1.413 s96 ms6.76 %
Last Visual Change 3.767 s 3.600 s 3.833 s 3.666 s 3.933 s3.767 s3.760 s118 ms3.14 %
Speed Index 1.533 s 1.395 s 1.623 s 1.527 s 1.595 s1.533 s1.535 s79 ms5.13 %
Visual Readiness 2.367 s 2.333 s 2.333 s 2.300 s 2.400 s2.333 s2.347 s34 ms1.45 %
Visual Complete 95 2.367 s 2.133 s 2.367 s 2.500 s 1.966 s2.367 s2.267 s191 ms8.44 %
Visual Complete 99 2.500 s 2.467 s 2.700 s 2.666 s 2.633 s2.633 s2.593 s93 ms3.57 %
CPU metrics
Browser metrics
CPU benchmark score 51 ms 60 ms 52 ms 51 ms 53 ms52 ms53 ms3 ms6.33 %
Page metrics
DOM elements 20837 20837 20837 20837 20837208372083700.00 %
Document height 45820 45820 45820 45820 45820458204582000.00 %
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 243.2 KB 243.2 KB 243.2 KB 243.2 KB 243.2 KB243.2 KB243.2 KB0 b0.00 %
JavaScript Transfer Size 370.3 KB 370.3 KB 370.3 KB 370.3 KB 370.3 KB370.3 KB370.3 KB0 b0.00 %
CSS Transfer Size 27.3 KB 27.3 KB 27.3 KB 27.3 KB 27.3 KB27.3 KB27.3 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 32.9 KB 32.9 KB 32.9 KB 32.9 KB 32.9 KB32.9 KB32.9 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 %