First visit

CO2 0.108g

SIZE 146.38 KB

Return visit

CO2 0.030g

SIZE 40.68 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

Image

13

96.09 KB

0.071g

Document

1

28.33 KB

0.021g

Stylesheet

1

13.5 KB

0.010g

Script

2

8.46 KB

0.006g

History

Date

CO2

Size

28.Mar.2023

0.108g

146.38 KB

27.Mar.2023

0.102g

137.03 KB

22.Mar.2023

0.097g

131.18 KB

22.Mar.2023

0.585g

789.59 KB

This website has been tested 4 times**

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


0.3 s

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

Opportunities

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


0.0 s

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

Uses efficient cache policy on static assets


6 resources found

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

First Contentful Paint


0.3 s

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

Speed Index


0.3 s

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

First Meaningful Paint


0.3 s

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

Initial server response time was short


Root document took 80 ms

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

Properly size images


Potential savings of 16 KiB

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

Avoids enormous network payloads


Total size was 146 KiB

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

Avoids an excessive DOM size


290 elements

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

Time to Interactive


0.3 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