First visit
CO2 2.918g
SIZE 3.85 MB
Return visit
CO2 0.151g
SIZE 203.88 KB
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
Image
15
2.74 MB
2.077g
Script
28
811.01 KB
0.601g
Stylesheet
9
230.48 KB
0.171g
Font
3
79.58 KB
0.059g
Document
1
12.53 KB
0.009g
Other
5
1.81 KB
0.001g
History
Date
CO2
Size
22.Sep.2022
2.918g
3.85 MB
22.Sep.2022
2.973g
3.92 MB
This website has been tested 2 times**
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
0.009
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
3.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Minify JavaScript
Potential savings of 98 KiB
Minifying JavaScript files can reduce payload sizes and script parse time.
Minify CSS
Potential savings of 161 KiB
Minifying CSS files can reduce network payload sizes.
Avoid serving legacy JavaScript to modern browsers
Potential savings of 27 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.
Reduce initial server response time
Root document took 760 ms
Keep the server response time for the main document short because all other requests depend on it.
JavaScript execution time
0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Reduce unused CSS
Potential savings of 220 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Avoids an excessive DOM size
323 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Properly size images
Potential savings of 636 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
First Meaningful Paint
1.0 s
First Meaningful Paint measures when the primary content of a page is visible.
Serve images in next-gen formats
Potential savings of 2,546 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
2.4 s
Speed Index shows how quickly the contents of a page are visibly populated.
First Contentful Paint
1.0 s
First Contentful Paint marks the time at which the first text or image is painted.
Time to Interactive
1.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Serve static assets with an efficient cache policy
6 resources found
A long cache lifetime can speed up repeat visits to your page.
Eliminate render-blocking resources
Potential savings of 460 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Avoid enormous network payloads
Total size was 3,938 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Reduce unused JavaScript
Potential savings of 413 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Minimizes main-thread work
0.4 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
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: