First visit

CO2 0.177g

SIZE 569.23 KB

Return visit

CO2 0.022g

SIZE 71.92 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

1

39.96 KB

0.012g

Script

9

180.68 KB

0.056g

Stylesheet

6

51.69 KB

0.016g

Image

7

192.84 KB

0.060g

Fetch

6

12.02 KB

0.004g

Font

4

92.04 KB

0.029g

History

Date

CO2

Size

14.Feb.2025

0.177g

569.23 KB

09.Dec.2024

0.167g

536.89 KB

05.Dec.2024

0.166g

533.57 KB

03.Dec.2024

0.165g

531.79 KB

03.Dec.2024

0.165g

532.14 KB

02.Dec.2024

0.325g

1.02 MB

15.Nov.2024

0.335g

1.05 MB

15.Nov.2024

0.335g

1.05 MB

This website has been tested 8 times**

Core Web Vitals

Max Potential First Input Delay


50 ms

The maximum potential First Input Delay that your users could experience is the duration of the longest task.

Cumulative Layout Shift


0.003

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

Largest Contentful Paint


1.1 s

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

Opportunities

First Contentful Paint


0.7 s

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

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.

Avoids an excessive DOM size


489 elements

A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows

Network Round Trip Times


10 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.

Serve static assets with an efficient cache policy


15 resources found

A long cache lifetime can speed up repeat visits to your page.

Initial server response time was short


Root document took 290 ms

Keep the server response time for the main document short because all other requests depend on it.

Reduce unused JavaScript


Potential savings of 41 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.

Eliminate render-blocking resources


Potential savings of 400 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.

Time to Interactive


1.1 s

Time to Interactive is the amount of time it takes for the page to become fully interactive.

Speed Index


0.8 s

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

Total Blocking Time


0 ms

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

Minimizes main-thread work


0.4 s

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

JavaScript execution time


0.1 s

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

Avoids enormous network payloads


Total size was 569 KiB

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

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