Metrics per run

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

Tested 2026-03-27 02:42:03 using Firefox 148.0.2 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 427 ms 407 ms 427 ms 428 ms 411 ms427 ms420 ms9 ms2.16 %
First Contentful Paint 1.154 s 1.084 s 1.136 s 1.154 s 1.141 s1.141 s1.134 s26 ms2.28 %
Largest Contentful Paint 1.440 s 1.588 s 1.628 s 1.183 s 1.390 s1.440 s1.446 s159 ms10.96 %
Interaction to Next Paint 128 ms 176 ms 200 ms NaN s 200 ms188 ms176 ms29 ms16.70 %
Timing metrics
First Paint 1.154 s 1.083 s 1.136 s 1.153 s 1.140 s1.140 s1.133 s26 ms2.30 %
First Contentful Paint 1.154 s 1.084 s 1.136 s 1.154 s 1.141 s1.141 s1.134 s26 ms2.28 %
Largest Contentful Paint 1.440 s 1.588 s 1.628 s 1.183 s 1.390 s1.440 s1.446 s159 ms10.96 %
Load Event End 1.641 s 2.177 s 1.630 s 1.649 s 1.626 s1.641 s1.745 s216 ms12.40 %
Server Response Time 105 ms 102 ms 105 ms 104 ms 103 ms104 ms104 ms1 ms1.12 %
TTFB 427 ms 407 ms 427 ms 428 ms 411 ms427 ms420 ms9 ms2.16 %
Page Load Time 1.641 s 2.177 s 1.630 s 1.648 s 1.626 s1.641 s1.744 s216 ms12.41 %
First Visual Change 1.200 s 1.133 s 1.200 s 1.167 s 1.200 s1.200 s1.180 s27 ms2.27 %
Last Visual Change 3.133 s 3.266 s 3.033 s 3.300 s 3.133 s3.133 s3.173 s98 ms3.07 %
Speed Index 1.240 s 1.179 s 1.238 s 1.207 s 1.239 s1.238 s1.221 s24 ms1.98 %
Visual Readiness 1.933 s 2.133 s 1.833 s 2.133 s 1.933 s1.933 s1.993 s120 ms6.02 %
Visual Complete 95 1.200 s 1.133 s 1.200 s 1.167 s 1.200 s1.200 s1.180 s27 ms2.27 %
Visual Complete 99 2.133 s 2.166 s 1.966 s 2.100 s 2.100 s2.100 s2.093 s68 ms3.25 %
CPU metrics
Browser metrics
CPU benchmark score 76 ms 77 ms 76 ms 77 ms 76 ms76 ms76 ms0 ms0.64 %
Page metrics
DOM elements 8246 8246 8247 8246 82468246824600.00 %
Document height 30081 30081 30081 30081 30081300813008100.00 %
Total Requests 54 54 54 54 54545400.00 %
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 758.1 KB 758.1 KB 758.1 KB 758.1 KB 758.1 KB758.1 KB758.1 KB2 B0.00 %
HTML Transfer Size 127.1 KB 127.1 KB 127.1 KB 127.1 KB 127.1 KB127.1 KB127.1 KB0 b0.00 %
JavaScript Transfer Size 310.7 KB 310.7 KB 310.7 KB 310.7 KB 310.7 KB310.7 KB310.7 KB2 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 2.0 KB 2.0 KB 2.0 KB 2.0 KB 2.0 KB2.0 KB2.0 KB0 b0.00 %
Plain Transfer Size 973 B 973 B 973 B 973 B 973 B973 B973 B0 b0.00 %
SVG Transfer Size 81.7 KB 81.7 KB 81.7 KB 81.7 KB 81.7 KB81.7 KB81.7 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 %
Plain 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 54 54 54 54 54545400.00 %
First Party Total Transfer Size 758.1 KB 758.1 KB 758.1 KB 758.1 KB 758.1 KB758.1 KB758.1 KB2 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %