First visit

CO2 0.044g

SIZE 53.27 KB

Return visit

CO2 0.020g

SIZE 24.82 KB

Overall this web page is rated as amazing when it comes to its carbon footprint

Emissions calculator



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







46.03 KB




6.41 KB




597 B




256 B


Third Party*


853 B


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Core Web Vitals

Max Potential First Input Delay

30 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.


Initial server response time was short

Root document took 30 ms

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

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.

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.

Avoids an excessive DOM size

52 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.

Uses efficient cache policy on static assets

4 resources found

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

First Meaningful Paint

0.3 s

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

Avoids enormous network payloads

Total size was 53 KiB

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

Switch to green hosting

One of the easiest things to do that instantly reduces your impact.


* These are assets not hosted on the same domain e.g. tracking scripts, iframe embeds, or files hosted on a CDN.

These measurements are for each new visitor, for returning visitors the footprint would be lower based on caching mechanisms.

Our brackets for the ratings:

  • Amazing: less than 0.25g

  • Great: less than 0.5g

  • Good: less than 1g

  • OK: less than 1.5g

  • Bad: above 1.5g