First visit
CO2 5.130g
SIZE 13.65 MB
Return visit
CO2 0.123g
SIZE 334.91 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
2
332.28 KB
0.122g
Stylesheet
8
137.1 KB
0.050g
Script
28
739.37 KB
0.271g
Image
91
691.72 KB
0.254g
Font
22
627.27 KB
0.230g
Fetch
1
762 B
0.000g
XHR
6
225.28 KB
0.083g
Media
2
10.97 MB
4.120g
Other
1
314 B
0.000g
History
Date
CO2
Size
11.Oct.2026
5.130g
13.65 MB
11.Oct.2026
11.580g
30.82 MB
11.Oct.2026
3.841g
10.22 MB
04.Feb.2026
1.900g
5.06 MB
20.Aug.2025
1.790g
4.77 MB
26.Feb.2025
0.781g
2.08 MB
11.Jan.2025
0.539g
1.44 MB
11.Dec.2024
0.958g
2.55 MB
02.Dec.2024
1.484g
3.95 MB
20.Nov.2024
0.810g
2.16 MB
03.Nov.2024
0.739g
1.97 MB
This website has been tested 50 times**
Previous 10 test results are displayed above.
Core Web Vitals
Max Potential First Input Delay
550 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
0.344
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
1.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
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.
Reduce unused JavaScript
Est savings of 326 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
First Contentful Paint
0.8 s
First Contentful Paint marks the time at which the first text or image is painted.
Time to Interactive
2.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Total Blocking Time
380 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Avoid enormous network payloads
Total size was 13,978 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Initial server response time was short
Root document took 360 ms
Keep the server response time for the main document short because all other requests depend on it.
Network Round Trip Times
10 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.
Speed Index
1.5 s
Speed Index shows how quickly the contents of a page are visibly populated.
Minimize main-thread work
3.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Reduce JavaScript execution time
1.7 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Switch to green hosting
One of the easiest things to do that instantly reduces your impact.
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: