First visit
CO2 1.534g
SIZE 2.02 MB
Return visit
CO2 0.322g
SIZE 434.92 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
37
703.15 KB
0.521g
Image
35
666.2 KB
0.494g
Other
38
620.3 KB
0.460g
Document
1
42.54 KB
0.032g
Font
2
20.27 KB
0.015g
Stylesheet
6
17.45 KB
0.013g
Core Web Vitals
Max Potential First Input Delay
210 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Cumulative Layout Shift
0.017
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
3.1 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Reduce unused JavaScript
Potential savings of 201 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Defer offscreen images
Potential savings of 172 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
Serve images in next-gen formats
Potential savings of 152 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Avoid an excessive DOM size
1,059 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Total Blocking Time
80 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time
0.4 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 2,070 KiB
Large network payloads cost users real money and are highly correlated with long load times.
First Contentful Paint
0.6 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 340 ms
Keep the server response time for the main document short because all other requests depend on it.
Minify JavaScript
Potential savings of 2 KiB
Minifying JavaScript files can reduce payload sizes and script parse time.
First Meaningful Paint
0.6 s
First Meaningful Paint measures when the primary content of a page is visible.
Avoid multiple page redirects
Potential savings of 230 ms
Redirects introduce additional delays before the page can be loaded.
Preload Largest Contentful Paint image
Potential savings of 80 ms
Preload the image used by the LCP element in order to improve your LCP time.
Speed Index
2.2 s
Speed Index shows how quickly the contents of a page are visibly populated.
Properly size images
Potential savings of 323 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Minimizes main-thread work
1.2 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Time to Interactive
3.0 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
22 resources found
A long cache lifetime can speed up repeat visits to your page.
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: