First visit

CO2 6.093g

SIZE 8.03 MB

Return visit

CO2 5.660g

SIZE 7.46 MB

Overall this web page has been graded F 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

Image

21

5.96 MB

4.526g

Script

38

941.2 KB

0.697g

Stylesheet

26

619.15 KB

0.459g

Document

4

323.83 KB

0.240g

Font

5

228.3 KB

0.169g

Other

9

1.98 KB

0.001g

History

Date

CO2

Size

22.Sep.2022

6.093g

8.03 MB

22.Sep.2022

6.092g

8.03 MB

22.Sep.2022

6.092g

8.03 MB

This website has been tested 3 times**

Core Web Vitals

Max Potential First Input Delay


40 ms

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

Cumulative Layout Shift


0.091

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

Largest Contentful Paint


3.2 s

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

Opportunities

Speed Index


4.4 s

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

Properly size images


Potential savings of 4,525 KiB

Serve images that are appropriately-sized to save cellular data and improve load time.

Serve static assets with an efficient cache policy


79 resources found

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

JavaScript execution time


0.3 s

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

Reduce unused CSS


Potential savings of 492 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.

Reduce unused JavaScript


Potential savings of 354 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 2,130 ms

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

Enable text compression


Potential savings of 897 KiB

Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.

Avoid enormous network payloads


Total size was 8,222 KiB

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

Time to Interactive


3.6 s

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

Avoid an excessive DOM size


3,896 elements

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

First Meaningful Paint


3.4 s

First Meaningful Paint measures when the primary content of a page is visible.

First Contentful Paint


2.9 s

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

Minimizes main-thread work


1.1 s

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

Reduce initial server response time


Root document took 2,070 ms

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

Serve images in next-gen formats


Potential savings of 5,559 KiB

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

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