First visit

CO2 1.105g

SIZE 3.48 MB

Return visit

CO2 0.019g

SIZE 60.71 KB

Overall this web page has been graded F 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

18.59 KB

0.006g

Stylesheet

1

20.67 KB

0.006g

Script

8

797.98 KB

0.248g

Image

43

1.38 MB

0.440g

Other

1

6.74 KB

0.002g

Font

4

232.02 KB

0.072g

XHR

4

1002.52 KB

0.311g

Fetch

1

64.47 KB

0.020g

Core Web Vitals

Max Potential First Input Delay


450 ms

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

Cumulative Layout Shift


0.001

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

Largest Contentful Paint


4.9 s

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

Opportunities

First Meaningful Paint


1.6 s

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

Minimize main-thread work


3.1 s

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

Serve images in next-gen formats


Potential savings of 1,092 KiB

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

Speed Index


4.7 s

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

Avoid an excessive DOM size


1,341 elements

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

Properly size images


Potential savings of 132 KiB

Serve images that are appropriately-sized to save cellular data and improve load time.

Efficiently encode images


Potential savings of 156 KiB

Optimized images load faster and consume less cellular data.

Time to Interactive


4.7 s

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

Total Blocking Time


660 ms

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

Serve static assets with an efficient cache policy


2 resources found

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

Avoid enormous network payloads


Total size was 3,561 KiB

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

Server Backend Latencies


620 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.

Reduce JavaScript execution time


2.1 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 397 KiB

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

First Contentful Paint


1.6 s

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

Reduce initial server response time


Root document took 1,210 ms

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

Minify JavaScript


Potential savings of 126 KiB

Minifying JavaScript files can reduce payload sizes and script parse time.

Eliminate render-blocking resources


Potential savings of 590 ms

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

Enable text compression


Potential savings of 44 KiB

Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.

Network Round Trip Times


20 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.

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