Metrics per run

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

Tested 2025-09-01 03:32:34 using Firefox 142.0 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 581 ms 561 ms 616 ms 615 ms 590 ms590 ms593 ms21 ms3.53 %
First Contentful Paint 1.168 s 1.270 s 1.185 s 1.186 s 1.152 s1.185 s1.192 s41 ms3.43 %
Largest Contentful Paint 2.533 s 2.577 s 2.338 s 2.534 s 2.492 s2.533 s2.495 s83 ms3.32 %
Timing metrics
First Paint 1.437 s 1.282 s 1.457 s 1.455 s 1.444 s1.444 s1.415 s67 ms4.73 %
First Contentful Paint 1.168 s 1.270 s 1.185 s 1.186 s 1.152 s1.185 s1.192 s41 ms3.43 %
Largest Contentful Paint 2.533 s 2.577 s 2.338 s 2.534 s 2.492 s2.533 s2.495 s83 ms3.32 %
Load Event End 3.424 s 3.131 s 3.349 s 3.340 s 3.014 s3.340 s3.252 s154 ms4.72 %
Server Response Time 220 ms 226 ms 198 ms 195 ms 195 ms198 ms207 ms13 ms6.48 %
TTFB 581 ms 561 ms 616 ms 615 ms 590 ms590 ms593 ms21 ms3.53 %
Page Load Time 3.423 s 3.130 s 3.349 s 3.340 s 3.014 s3.340 s3.251 s154 ms4.72 %
First Visual Change 1.467 s 1.333 s 1.500 s 1.500 s 1.500 s1.500 s1.460 s65 ms4.44 %
Last Visual Change 4.167 s 4.033 s 4.433 s 4.200 s 4.267 s4.200 s4.220 s131 ms3.10 %
Speed Index 1.774 s 1.634 s 1.789 s 1.781 s 1.788 s1.781 s1.753 s60 ms3.41 %
Visual Readiness 2.700 s 2.700 s 2.933 s 2.700 s 2.767 s2.700 s2.760 s90 ms3.27 %
Visual Complete 95 3.233 s 3.066 s 3.333 s 3.267 s 3.100 s3.233 s3.200 s101 ms3.16 %
Visual Complete 99 3.267 s 3.066 s 3.333 s 3.267 s 3.100 s3.267 s3.207 s104 ms3.25 %
CPU metrics
Browser metrics
CPU benchmark score 53 ms 52 ms 52 ms 54 ms 53 ms53 ms53 ms1 ms1.42 %
Page metrics
DOM elements 20846 20846 20846 20846 20846208462084600.00 %
Document height 45899 45899 45899 45899 45899458994589900.00 %
Total Requests 68 68 68 68 68686800.00 %
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 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB3 B0.00 %
HTML Transfer Size 243.3 KB 243.3 KB 243.3 KB 243.3 KB 243.3 KB243.3 KB243.3 KB0 b0.00 %
JavaScript Transfer Size 373.4 KB 373.4 KB 373.4 KB 373.4 KB 373.4 KB373.4 KB373.4 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 38.6 KB 38.6 KB 38.6 KB 38.6 KB 38.6 KB38.6 KB38.6 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 68 68 68 68 68686800.00 %
First Party Total Transfer Size 1.3 MB 1.3 MB 1.3 MB 1.3 MB 1.3 MB1.3 MB1.3 MB3 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %