First visit
CO2 9.218g
SIZE 12.15 MB
Return visit
CO2 0.298g
SIZE 402.45 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
Media
2
7.23 MB
5.485g
Image
37
3.14 MB
2.383g
Script
87
1.38 MB
1.047g
Stylesheet
17
178.01 KB
0.132g
Font
5
163.48 KB
0.121g
Other
29
34.22 KB
0.025g
Document
4
33.65 KB
0.025g
Core Web Vitals
Max Potential First Input Delay
100 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
4.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Total Blocking Time
40 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Minify JavaScript
Potential savings of 70 KiB
Minifying JavaScript files can reduce payload sizes and script parse time.
Avoid enormous network payloads
Total size was 12,439 KiB
Large network payloads cost users real money and are highly correlated with long load times.
JavaScript execution time
0.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Defer offscreen images
Potential savings of 153 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive.
First Contentful Paint
1.1 s
First Contentful Paint marks the time at which the first text or image is painted.
Reduce unused JavaScript
Potential savings of 583 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Speed Index
1.6 s
Speed Index shows how quickly the contents of a page are visibly populated.
Initial server response time was short
Root document took 120 ms
Keep the server response time for the main document short because all other requests depend on it.
Eliminate render-blocking resources
Potential savings of 490 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Minify CSS
Potential savings of 19 KiB
Minifying CSS files can reduce network payload sizes.
Enable text compression
Potential savings of 61 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes.
Serve static assets with an efficient cache policy
44 resources found
A long cache lifetime can speed up repeat visits to your page.
Serve images in next-gen formats
Potential savings of 250 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
First Meaningful Paint
1.1 s
First Meaningful Paint measures when the primary content of a page is visible.
Reduce unused CSS
Potential savings of 137 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Properly size images
Potential savings of 88 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Time to Interactive
3.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive.
Avoids an excessive DOM size
593 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Minimizes main-thread work
1.8 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.
These measurements are for each new visitor, for returning visitors the footprint would be lower based on caching mechanisms.
Our brackets for the ratings: