First visit
CO2 0.532g
SIZE 650.91 KB
Return visit
CO2 0.343g
SIZE 419.63 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
13
240.33 KB
0.197g
Font
3
193.04 KB
0.158g
Script
7
173.29 KB
0.142g
Stylesheet
7
34.57 KB
0.028g
Document
1
9.07 KB
0.007g
Other
1
617 B
0.000g
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
0.041
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
1.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Minimizes main-thread work
0.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Avoids enormous network payloads
Total size was 651 KiB
Large network payloads cost users real money and are highly correlated with long load times.
First Meaningful Paint
0.8 s
First Meaningful Paint measures when the primary content of a page is visible.
JavaScript execution time
0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Properly size images
Potential savings of 106 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Serve static assets with an efficient cache policy
18 resources found
A long cache lifetime can speed up repeat visits to your page.
Speed Index
0.8 s
Speed Index shows how quickly the contents of a page are visibly populated.
Eliminate render-blocking resources
Potential savings of 580 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
First Contentful Paint
0.8 s
First Contentful Paint marks the time at which the first text or image is painted.
Avoids an excessive DOM size
435 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Time to Interactive
0.8 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Initial server response time was short
Root document took 350 ms
Keep the server response time for the main document short because all other requests depend on it.
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: