Metrics per run

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

Tested 2025-06-18 14:29:12 using Chrome 137.0.7151.55 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 436 ms 419 ms 436 ms 435 ms 459 ms436 ms437 ms13 ms2.92 %
First Contentful Paint 1.096 s 1.052 s 1.052 s 1.072 s 1.092 s1.072 s1.073 s19 ms1.76 %
Largest Contentful Paint 1.096 s 1.052 s 1.052 s 1.072 s 1.092 s1.072 s1.073 s19 ms1.76 %
Total Blocking Time 66 ms 73 ms 73 ms 46 ms 61 ms66 ms64 ms10 ms15.66 %
Cumulative Layout Shift 0.031 0.031 0.031 0.032 0.0310.0310.03100.70 %
Timing metrics
First Paint 1.096 s 1.052 s 1.052 s 1.072 s 1.092 s1.072 s1.073 s19 ms1.76 %
First Contentful Paint 1.096 s 1.052 s 1.052 s 1.072 s 1.092 s1.072 s1.073 s19 ms1.76 %
Largest Contentful Paint 1.096 s 1.052 s 1.052 s 1.072 s 1.092 s1.072 s1.073 s19 ms1.76 %
Load Event End 2.217 s 2.163 s 2.185 s 1.536 s 2.181 s2.181 s2.056 s261 ms12.68 %
Server Response Time 408 ms 407 ms 408 ms 408 ms 407 ms408 ms408 ms0 ms0.12 %
TTFB 436 ms 419 ms 436 ms 435 ms 459 ms436 ms437 ms13 ms2.92 %
Page Load Time 2.216 s 2.163 s 2.185 s 1.536 s 2.180 s2.180 s2.056 s261 ms12.67 %
First Visual Change 1.066 s 1.066 s 1.066 s 1.066 s 1.100 s1.066 s1.073 s14 ms1.27 %
Last Visual Change 2.066 s 2.066 s 2.033 s 2.066 s 2.033 s2.066 s2.053 s16 ms0.79 %
Speed Index 1.203 s 1.197 s 1.205 s 1.200 s 1.227 s1.203 s1.206 s11 ms0.88 %
Visual Readiness 1.000 s 1.000 s 967 ms 1.000 s 933 ms1.000 s980 ms27 ms2.73 %
Visual Complete 95 2.066 s 2.033 s 2.033 s 2.066 s 2.033 s2.033 s2.046 s16 ms0.79 %
Visual Complete 99 2.066 s 2.066 s 2.033 s 2.066 s 2.033 s2.066 s2.053 s16 ms0.79 %
CPU metrics
Total Blocking Time 66 ms 73 ms 73 ms 46 ms 61 ms66 ms64 ms10 ms15.66 %
Max Potential FID 89 ms 96 ms 94 ms 71 ms 94 ms94 ms89 ms9 ms10.36 %
Number of Long Tasks 4 4 4 4 44400.00 %
Total Duration of Long Tasks 491 ms 492 ms 476 ms 467 ms 475 ms476 ms480 ms10 ms2.03 %
Browser metrics
CPU benchmark score 40 ms 42 ms 40 ms 40 ms 40 ms40 ms40 ms1 ms1.98 %
Page metrics
Cumulative Layout Shift 0.031 0.031 0.031 0.032 0.0310.0310.03100.70 %
DOM elements 9076 9076 9076 9075 90769076907600.00 %
Document height 31623 31623 31623 31623 31623316233162300.00 %
Total Requests 62 62 62 62 62626200.00 %
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 804.9 KB 804.9 KB 804.9 KB 804.9 KB 804.9 KB804.9 KB804.9 KB1 B0.00 %
HTML Transfer Size 135.1 KB 135.1 KB 135.1 KB 135.1 KB 135.1 KB135.1 KB135.1 KB0 b0.00 %
JavaScript Transfer Size 287.2 KB 287.2 KB 287.2 KB 287.2 KB 287.2 KB287.2 KB287.2 KB1 B0.00 %
CSS Transfer Size 25.8 KB 25.8 KB 25.8 KB 25.8 KB 25.8 KB25.8 KB25.8 KB1 B0.00 %
Font Transfer Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.8 KB 1.8 KB 1.8 KB 1.8 KB 1.8 KB1.8 KB1.8 KB0 b0.00 %
SVG Transfer Size 35.9 KB 35.9 KB 35.9 KB 35.9 KB 35.9 KB35.9 KB35.9 KB0 b0.00 %
Total Content Size 2.3 MB 2.3 MB 2.3 MB 2.3 MB 2.3 MB2.3 MB2.3 MB0 b0.00 %
HTML Content Size 754.2 KB 754.2 KB 754.2 KB 754.2 KB 754.2 KB754.2 KB754.2 KB0 b0.00 %
JavaScript Content Size 1.1 MB 1.1 MB 1.1 MB 1.1 MB 1.1 MB1.1 MB1.1 MB0 b0.00 %
CSS Content Size 186.1 KB 186.1 KB 186.1 KB 186.1 KB 186.1 KB186.1 KB186.1 KB0 b0.00 %
Image Content Size 293.1 KB 293.1 KB 293.1 KB 293.1 KB 293.1 KB293.1 KB293.1 KB0 b0.00 %
Font Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 2.7 KB 2.7 KB 2.7 KB 2.7 KB 2.7 KB2.7 KB2.7 KB0 b0.00 %
SVG Content Size 38.5 KB 38.5 KB 38.5 KB 38.5 KB 38.5 KB38.5 KB38.5 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 62 62 62 62 62626200.00 %
First Party Total Transfer Size 804.9 KB 804.9 KB 804.9 KB 804.9 KB 804.9 KB804.9 KB804.9 KB1 B0.00 %
First Party Total Content Size 2.3 MB 2.3 MB 2.3 MB 2.3 MB 2.3 MB2.3 MB2.3 MB0 b0.00 %