Metrics per run

https://en.m.wikipedia.org/wiki/Facebook

Tested 2025-09-01 05:25:13 using Chrome 139.0.7258.127 (runtime settings).

Side by side

Metric123MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 487 ms 504 ms 488 ms488 ms493 ms8 ms1.58 %
First Contentful Paint 1.020 s 1.024 s 1.012 s1.020 s1.019 s5 ms0.49 %
Largest Contentful Paint 1.368 s 1.404 s 1.372 s1.372 s1.381 s16 ms1.17 %
Total Blocking Time 1.325 s 1.479 s 1.299 s1.325 s1.368 s79 ms5.81 %
Cumulative Layout Shift 0 0 00000.00 %
Timing metrics
First Paint 1.020 s 1.024 s 1.012 s1.020 s1.019 s5 ms0.49 %
First Contentful Paint 1.020 s 1.024 s 1.012 s1.020 s1.019 s5 ms0.49 %
Largest Contentful Paint 1.368 s 1.404 s 1.372 s1.372 s1.381 s16 ms1.17 %
Load Event End 2.036 s 1.890 s 1.864 s1.890 s1.930 s76 ms3.92 %
Server Response Time 459 ms 457 ms 457 ms457 ms458 ms1 ms0.21 %
TTFB 487 ms 504 ms 488 ms488 ms493 ms8 ms1.58 %
Page Load Time 2.036 s 1.890 s 1.864 s1.890 s1.930 s76 ms3.92 %
First Visual Change 1.034 s 1.034 s 1.034 s1.034 s1.034 s0 ms0.00 %
Last Visual Change 7.100 s 7.100 s 7.100 s7.100 s7.100 s0 ms0.00 %
Speed Index 2.580 s 2.547 s 2.500 s2.547 s2.542 s33 ms1.29 %
Visual Readiness 6.066 s 6.066 s 6.066 s6.066 s6.066 s0 ms0.00 %
Visual Complete 95 7.067 s 7.067 s 7.067 s7.067 s7.067 s0 ms0.00 %
Visual Complete 99 7.067 s 7.067 s 7.067 s7.067 s7.067 s0 ms0.00 %
CPU metrics
Total Blocking Time 1.325 s 1.479 s 1.299 s1.325 s1.368 s79 ms5.81 %
Max Potential FID 398 ms 457 ms 397 ms398 ms417 ms28 ms6.72 %
Number of Long Tasks 13 13 13131300.00 %
Total Duration of Long Tasks 2.056 s 2.199 s 2.023 s2.056 s2.093 s76 ms3.65 %
Browser metrics
CPU benchmark score 251 ms 250 ms 253 ms251 ms251 ms1 ms0.50 %
Page metrics
Cumulative Layout Shift 0 0 00000.00 %
DOM elements 11397 11397 11397113971139700.00 %
Document height 4471 4471 44714471447100.00 %
Total Requests 35 35 35353500.00 %
HTML Requests 1 1 11100.00 %
JavaScript Requests 6 6 66600.00 %
CSS Requests 2 2 22200.00 %
Font Requests 0 0 00000.00 %
HTTP Errors 0 0 0000N/A
Total Transfer Size 577.4 KB 577.3 KB 577.3 KB577.3 KB577.4 KB28 B0.00 %
HTML Transfer Size 180.3 KB 180.3 KB 180.3 KB180.3 KB180.3 KB0 b0.00 %
JavaScript Transfer Size 219.1 KB 219.1 KB 219.1 KB219.1 KB219.1 KB29 B0.01 %
CSS Transfer Size 22.1 KB 22.1 KB 22.1 KB22.1 KB22.1 KB0 b0.00 %
Font Transfer Size 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Transfer Size 1.7 KB 1.7 KB 1.7 KB1.7 KB1.7 KB0 b0.00 %
JSON Transfer Size 1.7 KB 1.7 KB 1.7 KB1.7 KB1.7 KB0 b0.00 %
SVG Transfer Size 16.1 KB 16.1 KB 16.1 KB16.1 KB16.1 KB0 b0.00 %
Total Content Size 2.1 MB 2.1 MB 2.1 MB2.1 MB2.1 MB0 b0.00 %
HTML Content Size 998.3 KB 998.3 KB 998.3 KB998.3 KB998.3 KB0 b0.00 %
JavaScript Content Size 839.4 KB 839.4 KB 839.4 KB839.4 KB839.4 KB0 b0.00 %
CSS Content Size 154.3 KB 154.3 KB 154.3 KB154.3 KB154.3 KB0 b0.00 %
Image Content Size 128.2 KB 128.2 KB 128.2 KB128.2 KB128.2 KB0 b0.00 %
Font Content Size 0 b 0 b 0 b0 b0 b0 b0.00 %
Favicon Content Size 2.7 KB 2.7 KB 2.7 KB2.7 KB2.7 KB0 b0.00 %
JSON Content Size 263 B 263 B 263 B263 B263 B0 b0.00 %
SVG Content Size 10.4 KB 10.4 KB 10.4 KB10.4 KB10.4 KB0 b0.00 %
Third Party metrics
First Party metrics
First Party Requests 35 35 35353500.00 %
First Party Total Transfer Size 577.4 KB 577.3 KB 577.3 KB577.3 KB577.4 KB28 B0.00 %
First Party Total Content Size 2.1 MB 2.1 MB 2.1 MB2.1 MB2.1 MB0 b0.00 %