First visit
CO2 0.050g
SIZE 162.18 KB
Return visit
CO2 0.004g
SIZE 13.08 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
13.08 KB
0.004g
Stylesheet
1
3.28 KB
0.001g
Image
1
79.1 KB
0.025g
Script
4
15.38 KB
0.005g
Font
1
51.35 KB
0.016g
History
Date
CO2
Size
29.Oct.2025
0.050g
162.18 KB
28.Oct.2025
0.050g
161.86 KB
This website has been tested 2 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
0.15
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
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.
Avoids enormous network payloads
Total size was 162 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Speed Index
0.6 s
Speed Index shows how quickly the contents of a page are visibly populated.
Time to Interactive
0.3 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
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.
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.
First Contentful Paint
0.3 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 90 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: