First visit

CO2 0.689g

SIZE 929.79 KB

Return visit

CO2 0.243g

SIZE 327.73 KB

Overall this web page has been graded C 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

Script

37

645.66 KB

0.478g

Image

36

184.96 KB

0.137g

Document

1

41.14 KB

0.030g

Other

20

21.17 KB

0.016g

Font

2

20.08 KB

0.015g

Stylesheet

5

16.78 KB

0.012g

History

Date

CO2

Size

17.Sep.2022

0.689g

929.79 KB

17.Sep.2022

0.689g

929.79 KB

This website has been tested 2 times**

Core Web Vitals

Max Potential First Input Delay


140 ms

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

Cumulative Layout Shift


0.019

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

Largest Contentful Paint


1.6 s

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

Opportunities

First Contentful Paint


0.5 s

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

Reduce initial server response time


Root document took 1,160 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 930 KiB

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

Speed Index


2.5 s

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

Reduce unused JavaScript


Potential savings of 173 KiB

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

Serve static assets with an efficient cache policy


19 resources found

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

First Meaningful Paint


0.7 s

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

Properly size images


Potential savings of 50 KiB

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

Total Blocking Time


60 ms

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

JavaScript execution time


0.4 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.

Avoid an excessive DOM size


1,004 elements

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

Time to Interactive


1.0 s

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

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