First visit
CO2 0.065g
SIZE 210.45 KB
Return visit
CO2 0.048g
SIZE 154.38 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
3.42 KB
0.001g
Stylesheet
2
8.2 KB
0.003g
Font
3
166.69 KB
0.052g
Image
2
32.14 KB
0.010g
History
Date
CO2
Size
09.Nov.2026
0.065g
210.45 KB
30.Oct.2026
0.106g
341.75 KB
30.Oct.2026
0.108g
347.94 KB
30.Oct.2026
0.108g
347.96 KB
30.Oct.2026
0.310g
999.3 KB
30.Oct.2026
0.840g
2.64 MB
30.Oct.2026
0.840g
2.64 MB
This website has been tested 7 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
0.002
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Improve image delivery
Est savings of 23 KiB
Reducing the download time of images can improve the perceived load time of the page and LCP.
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.
Speed Index
0.5 s
Speed Index shows how quickly the contents of a page are visibly populated.
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.
First Contentful Paint
0.4 s
First Contentful Paint marks the time at which the first text or image is painted.
Use efficient cache lifetimes
Est savings of 151 KiB
A long cache lifetime can speed up repeat visits to your page.
Avoids enormous network payloads
Total size was 210 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.
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.
Render-blocking requests
Est savings of 190 ms
Requests are blocking the page’s initial render, which may delay LCP.
Deferring or inlining can move these network requests out of the critical path.
Time to Interactive
0.6 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
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: