Metrics per run

https://it.wikipedia.org/wiki/Rai

Tested 2025-09-17 16:25:30 using Firefox 142.0.1 (runtime settings).

Side by side

Metric12345MedianMeanstddevrsd
Google Web Vitals
Time to First Byte 521 ms 518 ms 622 ms 516 ms 627 ms521 ms561 ms52 ms9.28 %
First Contentful Paint 1.016 s 1.016 s 1.067 s 999 ms 1.168 s1.016 s1.053 s62 ms5.86 %
Largest Contentful Paint 2.492 s 2.559 s 2.595 s 2.493 s 2.543 s2.543 s2.536 s40 ms1.56 %
Interaction to Next Paint 120 ms NaN s NaN s NaN s NaN s120 ms120 ms0 ms0.00 %
Timing metrics
First Paint 1.019 s 1.022 s 1.081 s 1.005 s 1.175 s1.022 s1.060 s63 ms5.94 %
First Contentful Paint 1.016 s 1.016 s 1.067 s 999 ms 1.168 s1.016 s1.053 s62 ms5.86 %
Largest Contentful Paint 2.492 s 2.559 s 2.595 s 2.493 s 2.543 s2.543 s2.536 s40 ms1.56 %
Load Event End 2.487 s 2.551 s 2.580 s 2.488 s 2.643 s2.551 s2.550 s59 ms2.31 %
Server Response Time 194 ms 195 ms 194 ms 195 ms 283 ms195 ms212 ms35 ms16.68 %
TTFB 521 ms 518 ms 622 ms 516 ms 627 ms521 ms561 ms52 ms9.28 %
Page Load Time 2.487 s 2.550 s 2.579 s 2.487 s 2.643 s2.550 s2.549 s59 ms2.32 %
First Visual Change 1.067 s 1.100 s 1.133 s 1.067 s 1.233 s1.100 s1.120 s62 ms5.50 %
Last Visual Change 3.167 s 3.033 s 3.233 s 3.133 s 3.333 s3.167 s3.180 s100 ms3.15 %
Speed Index 1.345 s 1.363 s 1.410 s 1.343 s 1.471 s1.363 s1.386 s49 ms3.51 %
Visual Readiness 2.100 s 1.933 s 2.100 s 2.066 s 2.100 s2.100 s2.060 s65 ms3.14 %
Visual Complete 95 2.500 s 2.567 s 2.600 s 2.500 s 2.567 s2.567 s2.547 s40 ms1.57 %
Visual Complete 99 2.500 s 2.567 s 2.600 s 2.500 s 2.567 s2.567 s2.547 s40 ms1.57 %
CPU metrics
Browser metrics
CPU benchmark score 52 ms 54 ms 53 ms 51 ms 52 ms52 ms52 ms1 ms1.95 %
Page metrics
DOM elements 11597 11597 11598 11597 11597115971159700.00 %
Document height 48289 48289 48289 48289 48289482894828900.00 %
Total Requests 234 234 234 234 23423423400.00 %
HTML Requests 1 1 1 1 11100.00 %
JavaScript Requests 10 10 10 10 10101000.00 %
CSS Requests 3 3 3 3 33300.00 %
Font Requests 0 0 0 0 00000.00 %
HTTP Errors 0 0 0 0 0000N/A
Total Transfer Size 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB45 B0.00 %
HTML Transfer Size 134.2 KB 134.2 KB 134.2 KB 134.2 KB 134.2 KB134.2 KB134.2 KB0 b0.00 %
JavaScript Transfer Size 291.3 KB 291.3 KB 291.3 KB 291.3 KB 291.3 KB291.3 KB291.3 KB2 B0.00 %
CSS Transfer Size 29.3 KB 29.2 KB 29.2 KB 29.2 KB 29.2 KB29.2 KB29.2 KB10 B0.03 %
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 33.8 KB 33.8 KB 33.8 KB 33.8 KB 33.8 KB33.8 KB33.8 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 234 234 234 234 23423423400.00 %
First Party Total Transfer Size 1.2 MB 1.2 MB 1.2 MB 1.2 MB 1.2 MB1.2 MB1.2 MB45 B0.00 %
First Party Total Content Size 0 b 0 b 0 b 0 b 0 b0 b0 b0 b0.00 %