First visit
CO2 0.197g
SIZE 536.8 KB
Return visit
CO2 0.197g
SIZE 536.13 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
Document
1
13.06 KB
0.005g
Stylesheet
2
63.98 KB
0.023g
Script
9
96.14 KB
0.035g
Image
7
236.83 KB
0.087g
XHR
1
690 B
0.000g
Font
4
126.12 KB
0.046g
History
Date
CO2
Size
11.Apr.2024
0.197g
536.8 KB
07.Apr.2024
0.197g
536.8 KB
This website has been tested 2 times**
Core Web Vitals
Max Potential First Input Delay
20 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task.
Learn more about the Maximum Potential First Input Delay metric
Cumulative Layout Shift
0.004
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
1.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Minimizes main-thread work
0.2 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 537 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Properly size images
Potential savings of 172 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Initial server response time was short
Root document took 140 ms
Keep the server response time for the main document short because all other requests depend on it.
Time to Interactive
0.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Server Backend Latencies
20 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance.
Reduce unused JavaScript
Potential savings of 45 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Serve images in next-gen formats
Potential savings of 97 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Eliminate render-blocking resources
Potential savings of 520 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Speed Index
0.9 s
Speed Index shows how quickly the contents of a page are visibly populated.
First Contentful Paint
0.8 s
First Contentful Paint marks the time at which the first text or image is painted.
Serve static assets with an efficient cache policy
22 resources found
A long cache lifetime can speed up repeat visits to your page.
Avoids an excessive DOM size
360 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
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 Meaningful Paint
0.8 s
First Meaningful Paint measures when the primary content of a page is visible.
Reduce unused CSS
Potential savings of 60 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Network Round Trip Times
20 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance.
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.
** 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: