First visit

CO2 0.069g

SIZE 221.42 KB

Return visit

CO2 0.003g

SIZE 11.21 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

8.38 KB

0.003g

Script

6

132.35 KB

0.041g

Font

3

73.35 KB

0.023g

XHR

4

6.9 KB

0.002g

Preflight

1

449 B

0.000g

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.

Cumulative Layout Shift


0.002

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

Avoids an excessive DOM size


156 elements

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

Serve static assets with an efficient cache policy


1 resource found

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

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.

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.

Reduce unused JavaScript


Potential savings of 21 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.

Avoids enormous network payloads


Total size was 221 KiB

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

First Contentful Paint


0.3 s

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

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


0.3 s

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

Time to Interactive


0.5 s

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

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.

Initial server response time was short


Root document took 50 ms

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

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