First visit
CO2 0.084g
SIZE 269.33 KB
Return visit
CO2 0.009g
SIZE 28.08 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
13.88 KB
0.004g
Font
3
69.96 KB
0.022g
Stylesheet
2
11.88 KB
0.004g
Image
7
82.7 KB
0.026g
Script
10
87.77 KB
0.027g
XHR
3
3.13 KB
0.001g
History
Date
CO2
Size
24.Nov.2025
0.084g
269.33 KB
19.Sep.2025
0.084g
269.42 KB
20.Aug.2025
0.072g
231.08 KB
19.Aug.2025
0.072g
231.25 KB
13.Aug.2025
0.072g
230.58 KB
02.Aug.2025
0.072g
231.07 KB
04.Jul.2025
0.072g
231.55 KB
01.Jul.2025
0.086g
276.23 KB
17.Jun.2025
0.084g
269.87 KB
17.Jun.2025
0.071g
230.12 KB
12.Apr.2024
1.446g
3.85 MB
This website has been tested 11 times**
Previous 10 test results are displayed above.
Core Web Vitals
Max Potential First Input Delay
20 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
Largest Contentful Paint
0.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Time to Interactive
0.6 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
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.
Speed Index
0.5 s
Speed Index shows how quickly the contents of a page are visibly populated.
Server Backend Latencies
30 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.
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.
Avoids enormous network payloads
Total size was 269 KiB
Large network payloads cost users real money and are highly correlated with long load times.
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.
First Contentful Paint
0.5 s
First Contentful Paint marks the time at which the first text or image is painted.
Initial server response time was short
Root document took 10 ms
Keep the server response time for the main document short because all other requests depend on it.
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: