First visit
CO2 0.042g
SIZE 133.97 KB
Return visit
CO2 0.007g
SIZE 22.75 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
22.38 KB
0.007g
Stylesheet
1
3.53 KB
0.001g
Script
10
103.43 KB
0.032g
Other
1
552 B
0.000g
XHR
4
4.09 KB
0.001g
History
Date
CO2
Size
30.Apr.2026
0.042g
133.97 KB
04.Feb.2026
0.041g
131.8 KB
22.Sep.2025
0.041g
131.8 KB
15.Aug.2025
0.041g
132.08 KB
01.Aug.2025
0.041g
131.74 KB
01.Jul.2025
0.040g
130.36 KB
24.Jul.2023
0.041g
130.94 KB
19.Jun.2022
0.093g
125.24 KB
11.Feb.2022
0.107g
144.79 KB
07.Feb.2022
0.020g
27.51 KB
07.Feb.2022
0.020g
27.53 KB
This website has been tested 16 times**
Previous 10 test results are displayed above.
Core Web Vitals
Max Potential First Input Delay
130 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
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.
Speed Index
3.0 s
Speed Index shows how quickly the contents of a page are visibly populated.
Avoids enormous network payloads
Total size was 134 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Time to Interactive
0.8 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.
Network Round Trip Times
20 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
0.8 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.
Total Blocking Time
40 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time
0.2 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
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: