Metrics per run

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

Tested 2025-12-07 16:12:55 using Chrome 142.0.7444.59 (runtime settings).

Side by side

Metric1234567MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 490 ms 495 ms 506 ms 510 ms 491 ms 487 ms 487 ms491 ms495 ms9 ms1.73 %
First Contentful Paint 1.060 s 1.056 s 1.084 s 1.072 s 1.048 s 1.076 s 1.076 s1.072 s1.067 s12 ms1.12 %
Largest Contentful Paint 1.060 s 1.056 s 1.084 s 1.072 s 1.048 s 1.076 s 1.076 s1.072 s1.067 s12 ms1.12 %
Interaction to Next Paint 560 ms 544 ms 560 ms 552 ms 544 ms 576 ms 576 ms560 ms559 ms12 ms2.22 %
Total Blocking Time 369 ms 354 ms 362 ms 376 ms 403 ms 410 ms 355 ms369 ms376 ms21 ms5.56 %
Cumulative Layout Shift 0.155 0.154 0.154 0.154 0.154 0.152 0.1540.1540.1540.0010.55 %
Timing metrics
First Paint 1.060 s 1.056 s 1.084 s 1.072 s 1.048 s 1.076 s 1.076 s1.072 s1.067 s12 ms1.12 %
First Contentful Paint 1.060 s 1.056 s 1.084 s 1.072 s 1.048 s 1.076 s 1.076 s1.072 s1.067 s12 ms1.12 %
Largest Contentful Paint 1.060 s 1.056 s 1.084 s 1.072 s 1.048 s 1.076 s 1.076 s1.072 s1.067 s12 ms1.12 %
Load Event End 2.250 s 2.020 s 2.030 s 1.995 s 2.016 s 2.046 s 1.973 s2.020 s2.047 s86 ms4.18 %
Server Response Time 411 ms 412 ms 408 ms 415 ms 416 ms 409 ms 408 ms411 ms411 ms3 ms0.73 %
TTFB 490 ms 495 ms 506 ms 510 ms 491 ms 487 ms 487 ms491 ms495 ms9 ms1.73 %
Page Load Time 2.250 s 2.020 s 2.030 s 1.994 s 2.016 s 2.046 s 1.973 s2.020 s2.047 s86 ms4.19 %
First Visual Change 1.033 s 1.066 s 1.066 s 1.033 s 1.033 s 1.066 s 1.066 s1.066 s1.052 s16 ms1.55 %
Last Visual Change 13.800 s 13.866 s 13.933 s 13.900 s 13.933 s 13.933 s 13.900 s13.900 s13.895 s45 ms0.32 %
Speed Index 3.091 s 3.126 s 3.145 s 3.118 s 3.034 s 3.064 s 3.143 s3.118 s3.103 s39 ms1.25 %
Visual Readiness 12.767 s 12.800 s 12.867 s 12.867 s 12.900 s 12.867 s 12.834 s12.867 s12.843 s43 ms0.33 %
Visual Complete 95 11.800 s 11.800 s 11.833 s 11.900 s 11.800 s 11.833 s 11.933 s11.833 s11.843 s49 ms0.42 %
Visual Complete 99 13.666 s 12.866 s 12.866 s 13.866 s 12.933 s 12.933 s 13.766 s12.933 s13.271 s433 ms3.26 %
CPU metrics
Total Blocking Time 369 ms 354 ms 362 ms 376 ms 403 ms 410 ms 355 ms369 ms376 ms21 ms5.56 %
Max Potential FID 281 ms 278 ms 280 ms 290 ms 302 ms 296 ms 276 ms281 ms286 ms9 ms3.23 %
Number of Long Tasks 5 6 5 6 5 5 65509.12 %
Total Duration of Long Tasks 812 ms 857 ms 805 ms 857 ms 841 ms 862 ms 873 ms857 ms844 ms24 ms2.85 %
Browser metrics
CPU benchmark score 33 ms 33 ms 33 ms 33 ms 34 ms 33 ms 33 ms33 ms33 ms0 ms1.06 %
Page metrics
Cumulative Layout Shift 0.155 0.154 0.154 0.154 0.154 0.152 0.1540.1540.1540.0010.55 %
DOM elements 9038 9038 9038 9038 9038 9038 90379038903800.00 %
Document height 30798 30798 30798 30798 30798 30798 30798307983079800.00 %
Total Requests 58 58 58 58 58 58 58585800.00 %
HTML Requests 1 1 1 1 1 1 11100.00 %
JavaScript Requests 9 9 9 9 9 9 99900.00 %
CSS Requests 2 2 2 2 2 2 22200.00 %
Font Requests 0 0 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0 0 0000N/A
Total Transfer Size 871.1 KB 841.5 KB 892.2 KB 892.2 KB 892.2 KB 892.2 KB 889.6 KB892.2 KB881.6 KB17.9 KB2.02 %
HTML Transfer Size 129.9 KB 129.9 KB 129.9 KB 129.9 KB 129.9 KB 129.9 KB 129.9 KB129.9 KB129.9 KB0 b0.00 %
JavaScript Transfer Size 404.1 KB 404.2 KB 404.1 KB 404.1 KB 404.1 KB 404.1 KB 404.1 KB404.1 KB404.1 KB12 B0.00 %
CSS Transfer Size 26.2 KB 26.2 KB 26.2 KB 26.2 KB 26.2 KB 26.2 KB 26.2 KB26.2 KB26.2 KB1 B0.00 %
Font Transfer Size 0 b 0 b 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 KB 1.8 KB 1.8 KB1.8 KB1.8 KB0 b0.00 %
JSON Transfer Size 2.2 KB 2.2 KB 2.2 KB 2.2 KB 2.2 KB 2.2 KB 2.2 KB2.2 KB2.2 KB0 b0.00 %
Plain Transfer Size 611 B 611 B 611 B 611 B 611 B 611 B 611 B611 B611 B0 b0.00 %
SVG Transfer Size 30.0 KB 30.0 KB 30.0 KB 30.0 KB 30.0 KB 30.0 KB 30.0 KB30.0 KB30.0 KB0 b0.00 %
Total Content Size 2.6 MB 2.6 MB 2.7 MB 2.7 MB 2.7 MB 2.7 MB 2.7 MB2.7 MB2.7 MB17.8 KB0.66 %
HTML Content Size 732.2 KB 732.2 KB 732.2 KB 732.2 KB 732.2 KB 732.2 KB 732.2 KB732.2 KB732.2 KB0 b0.00 %
JavaScript Content Size 1.5 MB 1.5 MB 1.5 MB 1.5 MB 1.5 MB 1.5 MB 1.5 MB1.5 MB1.5 MB1 B0.00 %
CSS Content Size 186.5 KB 186.5 KB 186.5 KB 186.5 KB 186.5 KB 186.5 KB 186.5 KB186.5 KB186.5 KB0 b0.00 %
Image Content Size 253.1 KB 223.5 KB 274.2 KB 274.2 KB 274.2 KB 274.2 KB 271.6 KB274.2 KB263.6 KB17.8 KB6.77 %
Font Content Size 0 b 0 b 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 KB 2.7 KB 2.7 KB2.7 KB2.7 KB0 b0.00 %
JSON Content Size 2.2 KB 2.2 KB 2.2 KB 2.2 KB 2.2 KB 2.2 KB 2.2 KB2.2 KB2.2 KB0 b0.00 %
Plain Content Size 0 b 0 b 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %
SVG Content Size 23.6 KB 23.6 KB 23.6 KB 23.6 KB 23.6 KB 23.6 KB 23.6 KB23.6 KB23.6 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 58 58 58 58 58 58 58585800.00 %
First Party Total Transfer Size 871.1 KB 841.5 KB 892.2 KB 892.2 KB 892.2 KB 892.2 KB 889.6 KB892.2 KB881.6 KB17.9 KB2.02 %
First Party Total Content Size 2.6 MB 2.6 MB 2.7 MB 2.7 MB 2.7 MB 2.7 MB 2.7 MB2.7 MB2.7 MB17.8 KB0.66 %