First visit
CO2 0.167g
SIZE 538.97 KB
Return visit
CO2 0.013g
SIZE 43.49 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
32.54 KB
0.010g
Other
1
748 B
0.000g
Font
2
61.48 KB
0.019g
Image
2
26.67 KB
0.008g
Stylesheet
2
21.95 KB
0.007g
Script
21
307.14 KB
0.095g
XHR
1
653 B
0.000g
Fetch
28
87.82 KB
0.027g
History
Date
CO2
Size
06.Jun.2026
0.167g
538.97 KB
16.Feb.2026
0.249g
803.27 KB
13.Feb.2026
0.253g
815.82 KB
06.Feb.2026
0.235g
756.58 KB
05.Feb.2026
0.133g
428.75 KB
05.Feb.2026
0.135g
434.84 KB
05.Feb.2026
0.136g
439.21 KB
05.Feb.2026
0.136g
439.83 KB
01.Feb.2026
0.217g
698.21 KB
01.Feb.2026
0.217g
698.3 KB
01.Feb.2026
0.217g
700.19 KB
This website has been tested 15 times**
Previous 10 test results are displayed above.
Core Web Vitals
Max Potential First Input Delay
110 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
0.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Time to Interactive
1.0 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
First Contentful Paint
0.4 s
First Contentful Paint marks the time at which the first text or image is painted.
Avoids enormous network payloads
Total size was 539 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Minimizes main-thread work
1.5 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 51 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Total Blocking Time
70 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Speed Index
1.4 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.
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.
JavaScript execution time
0.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Initial server response time was short
Root document took 10 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: