First visit
CO2 0.038g
SIZE 122.51 KB
Return visit
CO2 0.003g
SIZE 10.05 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
9.85 KB
0.003g
Stylesheet
1
4.96 KB
0.002g
Script
6
41.71 KB
0.013g
Image
13
62.86 KB
0.020g
XHR
3
3.13 KB
0.001g
History
Date
CO2
Size
12.Jun.2025
0.038g
122.51 KB
31.Mar.2025
0.038g
122.47 KB
19.Feb.2025
0.041g
133.09 KB
22.Oct.2024
0.039g
124.25 KB
25.Sep.2024
0.056g
179.1 KB
27.Jun.2024
0.039g
125.8 KB
15.May.2024
0.040g
130.23 KB
27.Mar.2024
0.036g
117.17 KB
06.Sep.2023
0.044g
141.15 KB
22.Apr.2023
0.103g
138.63 KB
22.Apr.2023
0.165g
222.85 KB
This website has been tested 34 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
0.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Avoids enormous network payloads
Total size was 123 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Avoids an excessive DOM size
268 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 20 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
0.3 s
Speed Index shows how quickly the contents of a page are visibly populated.
Minimizes main-thread work
0.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
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.
Reduce unused JavaScript
Est savings of 20 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.
Time to Interactive
0.3 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Serve static assets with an efficient cache policy
1 resource found
A long cache lifetime can speed up repeat visits to your page.
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: