First visit

CO2 0.141g

SIZE 383.67 KB

Return visit

CO2 0.007g

SIZE 19.12 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

19.12 KB

0.007g

Font

2

112.09 KB

0.041g

Image

16

18.48 KB

0.007g

Stylesheet

1

15.06 KB

0.006g

Script

16

176.94 KB

0.065g

Fetch

6

41.32 KB

0.015g

Preflight

1

667 B

0.000g

History

Date

CO2

Size

01.Jul.2025

0.141g

383.67 KB

27.Mar.2024

0.145g

395.33 KB

26.Mar.2024

0.143g

390.79 KB

15.Mar.2024

0.148g

402.74 KB

15.Mar.2024

0.148g

403.89 KB

15.Mar.2024

0.151g

411.42 KB

13.Mar.2024

0.151g

412.88 KB

13.Mar.2024

0.150g

409.47 KB

07.Mar.2024

0.149g

406.72 KB

07.Mar.2024

0.152g

414.35 KB

29.Feb.2024

0.152g

414.85 KB

This website has been tested 35 times**

Previous 10 test results are displayed above.

Core Web Vitals

Max Potential First Input Delay


110 ms

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

Cumulative Layout Shift


0.012

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

Largest Contentful Paint


0.6 s

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

Opportunities

First Contentful Paint


0.3 s

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

Initial server response time was short


Root document took 190 ms

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

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.

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.

Time to Interactive


0.6 s

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

Server Backend Latencies


0 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.

Speed Index


0.8 s

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

Avoids enormous network payloads


Total size was 384 KiB

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

Avoids an excessive DOM size


311 elements

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

Minimizes main-thread work


0.8 s

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

Total Blocking Time


50 ms

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

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.

** 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