First visit

CO2 0.152g

SIZE 491.28 KB

Return visit

CO2 0.032g

SIZE 103.11 KB

Overall this web page has been graded A when it comes to its carbon footprint

This website is hosted using renewable energy or carbon offsets.

Find out more about grades

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

2

95.8 KB

0.030g

Script

9

98.8 KB

0.031g

Other

1

345 B

0.000g

Image

3

7.55 KB

0.002g

XHR

4

286.71 KB

0.089g

Fetch

1

2.08 KB

0.001g

History

Date

CO2

Size

20.Apr.2026

0.152g

491.28 KB

18.Jun.2025

0.586g

1.84 MB

19.May.2025

0.549g

1.73 MB

03.Apr.2025

0.489g

1.54 MB

27.Feb.2025

0.565g

1.78 MB

20.Jan.2025

1.058g

3.33 MB

10.Dec.2024

0.754g

2.37 MB

19.May.2022

2.166g

2.59 MB

26.Nov.2021

1.722g

2.06 MB

18.Nov.2021

2.083g

2.49 MB

This website has been tested 10 times**

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.

Cumulative Layout Shift


0.001

Cumulative Layout Shift measures the movement of visible elements within the viewport.

Largest Contentful Paint


0.7 s

Largest Contentful Paint marks the time at which the largest text or image is painted.

Opportunities

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.

Speed Index


0.7 s

Speed Index shows how quickly the contents of a page are visibly populated.

Reduce JavaScript execution time


1.4 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.

Minimizes main-thread work


1.6 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.

Total Blocking Time


250 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.

First Contentful Paint


0.2 s

First Contentful Paint marks the time at which the first text or image is painted.

Avoids enormous network payloads


Total size was 491 KiB

Large network payloads cost users real money and are highly correlated with long load times.

Time to Interactive


1.7 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.

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.

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:

  • A+: less than 0.095g

  • A: less than 0.185g

  • B: less than 0.34g

  • C: less than 0.49g

  • D: less than 0.65g

  • E: less than 0.85g

  • F: above 0.85