First visit
CO2 0.133g
SIZE 430.14 KB
Return visit
CO2 0.013g
SIZE 40.93 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
25.46 KB
0.008g
Stylesheet
6
12.43 KB
0.004g
Script
14
122.26 KB
0.038g
Image
7
267.47 KB
0.083g
Fetch
1
1.3 KB
0.000g
XHR
1
1.23 KB
0.000g
History
Date
CO2
Size
22.Oct.2025
0.133g
430.14 KB
12.Jun.2025
0.109g
350.61 KB
07.Jun.2025
0.109g
350.46 KB
07.May.2025
0.070g
225.93 KB
16.Apr.2025
0.067g
216.3 KB
16.Apr.2025
0.223g
719.54 KB
03.Apr.2025
0.062g
200.6 KB
03.Apr.2025
0.576g
1.81 MB
20.Mar.2025
0.003g
10.45 KB
This website has been tested 9 times**
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
Cumulative Layout Shift
0.168
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
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.
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.
Reduce unused JavaScript
Est savings of 25 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
First Contentful Paint
0.3 s
First Contentful Paint marks the time at which the first text or image is painted.
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 430 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Time to Interactive
0.9 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
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.
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.
Speed Index
0.6 s
Speed Index shows how quickly the contents of a page are visibly populated.
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: