First visit

CO2 0.174g

SIZE 562.2 KB

Return visit

CO2 0.073g

SIZE 236.67 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

5.03 KB

0.002g

Stylesheet

8

74.29 KB

0.023g

Script

8

125.52 KB

0.039g

Image

1

280.98 KB

0.087g

Font

1

76.38 KB

0.024g

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.

Cumulative Layout Shift


0

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

Largest Contentful Paint


0.8 s

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

Opportunities

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.

Server Backend Latencies


30 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.

Serve static assets with an efficient cache policy


18 resources 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.

Speed Index


0.9 s

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

Eliminate render-blocking resources


Est savings of 380 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.

Avoids enormous network payloads


Total size was 562 KiB

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

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.

Serve images in next-gen formats


Est savings of 65 KiB

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

Time to Interactive


0.8 s

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

Avoids an excessive DOM size


174 elements

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

Initial server response time was short


Root document took 500 ms

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

First Contentful Paint


0.7 s

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

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