First visit
CO2 1.021g
SIZE 1.35 MB
Return visit
CO2 0.420g
SIZE 567.12 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
Script
18
624.89 KB
0.463g
Image
11
437.21 KB
0.324g
Document
5
134.64 KB
0.100g
Font
5
110.41 KB
0.082g
Stylesheet
5
43.35 KB
0.032g
Other
10
26.87 KB
0.020g
History
Date
CO2
Size
22.Sep.2022
1.021g
1.35 MB
22.Sep.2022
1.021g
1.34 MB
This website has been tested 2 times**
Core Web Vitals
Max Potential First Input Delay
30 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Cumulative Layout Shift
0.002
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
1.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Avoids enormous network payloads
Total size was 1,377 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Serve images in next-gen formats
Potential savings of 249 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
1.0 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Properly size images
Potential savings of 37 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Efficiently encode images
Potential savings of 165 KiB
Optimized images load faster and consume less cellular data.
Eliminate render-blocking resources
Potential savings of 800 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Serve static assets with an efficient cache policy
9 resources found
A long cache lifetime can speed up repeat visits to your page.
JavaScript execution time
0.2 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Speed Index
1.1 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.
Reduce initial server response time
Root document took 630 ms
Keep the server response time for the main document short because all other requests depend on it.
Avoids an excessive DOM size
302 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
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.
Reduce unused CSS
Potential savings of 38 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Minimizes main-thread work
0.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
First Meaningful Paint
1.0 s
First Meaningful Paint measures when the primary content of a page is visible.
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: