First visit
CO2 0.194g
SIZE 625.51 KB
Return visit
CO2 0.011g
SIZE 36.67 KB
Emissions calculator
40%
60%
Total: per month
This is equivalent to: Driving miles in a Tesla Model S Watching hours of Netflix (in HD)
At least trees would be needed to offset the CO2 in a year
Page breakdown
Type
Requests
Size
CO2
Document
1
30.41 KB
0.009g
Stylesheet
6
18.42 KB
0.006g
Script
9
92.17 KB
0.029g
Image
5
163.02 KB
0.051g
Font
1
318.86 KB
0.099g
Fetch
1
1.38 KB
0.000g
XHR
1
1.25 KB
0.000g
History
Date
CO2
Size
14.Jul.2026
0.194g
625.51 KB
13.Jul.2026
0.538g
1.69 MB
03.Jul.2026
0.538g
1.69 MB
19.May.2026
0.149g
480.41 KB
19.May.2026
0.397g
1.25 MB
19.May.2026
0.442g
1.39 MB
30.Apr.2026
0.169g
544.16 KB
21.Sep.2025
0.105g
337.32 KB
15.Aug.2025
0.113g
363.54 KB
01.Jul.2025
0.109g
351.64 KB
19.May.2025
0.332g
1.05 MB
This website has been tested 99 times**
Previous 10 test results are displayed above.
Core Web Vitals
Max Potential First Input Delay
30 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Learn more about the Maximum Potential First Input Delay metric
Cumulative Layout Shift
0
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Minimizes main-thread work
0.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
First Contentful Paint
0.3 s
First Contentful Paint marks the time at which the first text or image is painted.
Avoids enormous network payloads
Total size was 626 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Speed Index
0.7 s
Speed Index shows how quickly the contents of a page are visibly populated.
Server Backend Latencies
0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance.
Initial server response time was short
Root document took 50 ms
Keep the server response time for the main document short because all other requests depend on it.
Time to Interactive
0.5 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Network Round Trip Times
0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance.
JavaScript execution time
0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Notes
* These are assets not hosted on the same domain e.g. tracking scripts, iframe embeds, or files hosted on a CDN.
** This was only counted from 11.Apr.2021.
These measurements are for each new visitor, for returning visitors the footprint would be lower based on caching mechanisms.
Our brackets for the ratings: