First visit
CO2 5.254g
SIZE 6.92 MB
Return visit
CO2 4.339g
SIZE 5.72 MB
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
Script
55
2.59 MB
1.962g
Image
22
2.31 MB
1.750g
Stylesheet
33
1.44 MB
1.096g
Font
10
404.9 KB
0.300g
Document
4
159.41 KB
0.118g
Other
13
37.87 KB
0.028g
History
Date
CO2
Size
22.Sep.2022
5.254g
6.92 MB
15.Sep.2022
4.167g
5.49 MB
This website has been tested 2 times**
Core Web Vitals
Max Potential First Input Delay
140 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Cumulative Layout Shift
0.009
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
5.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Serve static assets with an efficient cache policy
92 resources found
A long cache lifetime can speed up repeat visits to your page.
First Meaningful Paint
4.9 s
First Meaningful Paint measures when the primary content of a page is visible.
Properly size images
Potential savings of 141 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Time to Interactive
9.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Speed Index
7.4 s
Speed Index shows how quickly the contents of a page are visibly populated.
Eliminate render-blocking resources
Potential savings of 3,270 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Avoid an excessive DOM size
876 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Reduce unused CSS
Potential savings of 1,301 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Enable text compression
Potential savings of 2,407 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.
JavaScript execution time
1.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
First Contentful Paint
4.8 s
First Contentful Paint marks the time at which the first text or image is painted.
Total Blocking Time
150 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Avoid enormous network payloads
Total size was 7,090 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Defer offscreen images
Potential savings of 797 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
Avoid serving legacy JavaScript to modern browsers
Potential savings of 30 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers.
Minimize main-thread work
2.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Reduce initial server response time
Root document took 1,760 ms
Keep the server response time for the main document short because all other requests depend on it.
Efficiently encode images
Potential savings of 58 KiB
Optimized images load faster and consume less cellular data.
Reduce unused JavaScript
Potential savings of 1,358 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Serve images in next-gen formats
Potential savings of 943 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
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: