First visit

CO2 2.430g

SIZE 6.47 MB

Return visit

CO2 0.238g

SIZE 649.43 KB

Overall this web page has been graded F 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

10

263.55 KB

0.097g

Stylesheet

12

180.56 KB

0.066g

Image

54

842.9 KB

0.309g

Script

68

3.8 MB

1.428g

Font

13

600.77 KB

0.220g

Other

5

5.07 KB

0.002g

XHR

29

146.81 KB

0.054g

Preflight

8

4.29 KB

0.002g

Fetch

7

687.58 KB

0.252g

Core Web Vitals

Max Potential First Input Delay


560 ms

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

Cumulative Layout Shift


0.007

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

Largest Contentful Paint


2.4 s

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

Opportunities

Avoid enormous network payloads


Total size was 6,624 KiB

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

Serve static assets with an efficient cache policy


45 resources found

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

Reduce unused JavaScript


Potential savings of 2,129 KiB

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

Reduce unused CSS


Potential savings of 47 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.

Server Backend Latencies


140 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.

Initial server response time was short


Root document took 140 ms

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

Avoids an excessive DOM size


220 elements

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

Serve images in next-gen formats


Potential savings of 412 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


9.0 s

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

First Contentful Paint


1.1 s

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

Minimize main-thread work


9.8 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


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.

Reduce JavaScript execution time


7.2 s

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

Speed Index


3.9 s

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

Defer offscreen images


Potential savings of 276 KiB

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.

Total Blocking Time


3,360 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.

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