First visit
CO2 0.305g
SIZE 411.94 KB
Return visit
CO2 0.002g
SIZE 2.62 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
6
327.44 KB
0.243g
Font
1
38.54 KB
0.029g
Script
1
35.5 KB
0.026g
Stylesheet
2
7.83 KB
0.006g
Document
1
2.62 KB
0.002g
Core Web Vitals
Max Potential First Input Delay
50 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Largest Contentful Paint
0.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Time to Interactive
0.2 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Avoids enormous network payloads
Total size was 412 KiB
Large network payloads cost users real money and are highly correlated with long load times.
First Meaningful Paint
0.2 s
First Meaningful Paint measures when the primary content of a page is visible.
Properly size images
Potential savings of 303 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
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.
First Contentful Paint
0.2 s
First Contentful Paint marks the time at which the first text or image is painted.
Initial server response time was short
Root document took 210 ms
Keep the server response time for the main document short because all other requests depend on it.
Speed Index
0.4 s
Speed Index shows how quickly the contents of a page are visibly populated.
Minimizes main-thread work
0.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Avoids an excessive DOM size
139 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
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: