First visit
CO2 0.163g
SIZE 525.57 KB
Return visit
CO2 0.030g
SIZE 97.01 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
8.35 KB
0.003g
Font
2
42.37 KB
0.013g
Script
4
192.89 KB
0.060g
Stylesheet
2
15.64 KB
0.005g
Image
3
257.33 KB
0.080g
XHR
2
8.19 KB
0.003g
Fetch
1
808 B
0.000g
History
Date
CO2
Size
01.Jul.2026
0.163g
525.57 KB
19.Sep.2025
0.155g
500.41 KB
18.Aug.2025
0.154g
496.04 KB
13.Aug.2025
0.154g
497.25 KB
01.Jul.2025
0.154g
495.01 KB
27.May.2025
0.152g
490.14 KB
20.Dec.2024
0.147g
472.17 KB
20.Dec.2024
0.161g
518.71 KB
20.Dec.2024
0.006g
18.99 KB
This website has been tested 9 times**
Core Web Vitals
Max Potential First Input Delay
80 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
0.004
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Avoids enormous network payloads
Total size was 526 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 0 ms
Keep the server response time for the main document short because all other requests depend on it.
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.
Server Backend Latencies
20 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.
Speed Index
1.1 s
Speed Index shows how quickly the contents of a page are visibly populated.
Minimizes main-thread work
0.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Time to Interactive
0.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
First Contentful Paint
0.5 s
First Contentful Paint marks the time at which the first text or image is painted.
Reduce unused JavaScript
Est savings of 66 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Total Blocking Time
10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time
0.2 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: