First visit

CO2 0.094g

SIZE 303.02 KB

Return visit

CO2 0.013g

SIZE 42.45 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

Document

1

23.36 KB

0.007g

Other

1

571 B

0.000g

Stylesheet

1

9.36 KB

0.003g

Script

3

122.09 KB

0.038g

Image

6

54.75 KB

0.017g

Fetch

2

1.66 KB

0.001g

Font

4

90.69 KB

0.028g

XHR

1

579 B

0.000g

History

Date

CO2

Size

29.May.2025

0.094g

303.02 KB

14.Feb.2025

0.177g

569.23 KB

09.Dec.2024

0.167g

536.89 KB

05.Dec.2024

0.166g

533.57 KB

03.Dec.2024

0.165g

531.79 KB

03.Dec.2024

0.165g

532.14 KB

02.Dec.2024

0.325g

1.02 MB

15.Nov.2024

0.335g

1.05 MB

15.Nov.2024

0.335g

1.05 MB

This website has been tested 9 times**

Core Web Vitals

Max Potential First Input Delay


100 ms

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

Cumulative Layout Shift


0.004

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

Largest Contentful Paint


0.5 s

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

Opportunities

Time to Interactive


0.8 s

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

JavaScript execution time


0.2 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 1,240 ms

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

Avoids an excessive DOM size


270 elements

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

First Contentful Paint


0.3 s

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

Network Round Trip Times


0 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.

Avoids enormous network payloads


Total size was 303 KiB

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

Speed Index


1.1 s

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

Minimizes main-thread work


0.5 s

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

Serve static assets with an efficient cache policy


11 resources found

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

Server Backend Latencies


40 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.

Total Blocking Time


30 ms

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

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