First visit

CO2 0.056g

SIZE 179.1 KB

Return visit

CO2 0.003g

SIZE 10.99 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

9.43 KB

0.003g

Image

15

120.28 KB

0.037g

Stylesheet

1

4.96 KB

0.002g

Script

6

41.39 KB

0.013g

XHR

3

3.03 KB

0.001g

History

Date

CO2

Size

25.Sep.2024

0.056g

179.1 KB

27.Jun.2024

0.039g

125.8 KB

15.May.2024

0.040g

130.23 KB

27.Mar.2024

0.036g

117.17 KB

06.Sep.2023

0.044g

141.15 KB

22.Apr.2023

0.103g

138.63 KB

22.Apr.2023

0.165g

222.85 KB

22.Apr.2023

0.077g

103.99 KB

22.Apr.2023

0.105g

141.71 KB

22.Apr.2023

0.106g

142.84 KB

19.Apr.2023

0.148g

199.54 KB

This website has been tested 30 times**

Previous 10 test results are displayed above.

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.

Largest Contentful Paint


0.6 s

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

Opportunities

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.

Initial server response time was short


Root document took 100 ms

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

Avoids enormous network payloads


Total size was 179 KiB

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

Speed Index


0.4 s

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

Time to Interactive


0.6 s

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

Serve static assets with an efficient cache policy


1 resource found

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

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.

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.

Serve images in next-gen formats


Potential savings of 10 KiB

Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.

Avoids an excessive DOM size


267 elements

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

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.

Reduce unused JavaScript


Potential savings of 20 KiB

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

First Contentful Paint


0.3 s

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

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