First visit
CO2 0.159g
SIZE 512.42 KB
Return visit
CO2 0.006g
SIZE 20 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
20 KB
0.006g
Other
1
697 B
0.000g
Script
7
72.56 KB
0.023g
Stylesheet
1
17.53 KB
0.005g
Image
1
272.46 KB
0.085g
Font
3
128.48 KB
0.040g
XHR
1
735 B
0.000g
History
Date
CO2
Size
01.Jul.2025
0.159g
512.42 KB
09.Feb.2025
0.065g
209.91 KB
29.Jan.2025
0.149g
480.42 KB
12.Feb.2024
0.108g
346.51 KB
11.Feb.2024
0.364g
1.15 MB
14.Jan.2024
0.369g
1.16 MB
24.Dec.2023
0.153g
492.39 KB
18.Dec.2023
0.122g
392.31 KB
18.Dec.2023
0.143g
460.07 KB
28.Nov.2023
0.084g
270.84 KB
27.Nov.2023
0.094g
302.3 KB
This website has been tested 11 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
0.033
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Speed Index
0.5 s
Speed Index shows how quickly the contents of a page are visibly populated.
Minimizes main-thread work
0.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
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.
Time to Interactive
0.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Avoids enormous network payloads
Total size was 512 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Avoids an excessive DOM size
237 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Initial server response time was short
Root document took 170 ms
Keep the server response time for the main document short because all other requests depend on it.
JavaScript execution time
0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
First Contentful Paint
0.4 s
First Contentful Paint marks the time at which the first text or image is painted.
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.
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: