First visit

CO2 0.036g

SIZE 97.79 KB

Return visit

CO2 0.010g

SIZE 26 KB

Overall this web page has been graded A+ when it comes to its carbon footprint

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

26 KB

0.010g

Stylesheet

1

8.96 KB

0.003g

Script

1

3.92 KB

0.001g

Image

5

58.92 KB

0.022g

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


0.5 s

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

Opportunities

First Meaningful Paint


0.5 s

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

Minimizes main-thread work


0.2 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 330 ms

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

Server Backend Latencies


160 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.

Network Round Trip Times


10 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.

First Contentful Paint


0.5 s

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

Serve images in next-gen formats


Potential savings of 32 KiB

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

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.

Avoids enormous network payloads


Total size was 98 KiB

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

Speed Index


0.8 s

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

Avoids an excessive DOM size


514 elements

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

Time to Interactive


0.5 s

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

Switch to green hosting


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

Notes

* 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:

  • 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