First visit
CO2 0.554g
SIZE 1.74 MB
Return visit
CO2 0.014g
SIZE 45.46 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
4.8 KB
0.001g
Stylesheet
2
36.43 KB
0.011g
Script
10
393.95 KB
0.122g
Image
15
1.05 MB
0.335g
Font
9
270.34 KB
0.084g
XHR
2
1.06 KB
0.000g
History
Date
CO2
Size
13.Jan.2024
0.554g
1.74 MB
13.Jan.2024
0.554g
1.74 MB
This website has been tested 2 times**
Core Web Vitals
Max Potential First Input Delay
60 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
0.023
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
0.9 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Reduce unused JavaScript
Potential savings of 114 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 798 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Total Blocking Time
10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Initial server response time was short
Root document took 30 ms
Keep the server response time for the main document short because all other requests depend on it.
Avoids an excessive DOM size
180 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Eliminate render-blocking resources
Potential savings of 530 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Server Backend Latencies
30 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.
Avoids enormous network payloads
Total size was 1,786 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Speed Index
0.9 s
Speed Index shows how quickly the contents of a page are visibly populated.
Serve static assets with an efficient cache policy
2 resources found
A long cache lifetime can speed up repeat visits to your page.
Time to Interactive
1.7 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
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.
First Meaningful Paint
0.9 s
First Meaningful Paint measures when the primary content of a page is visible.
Properly size images
Potential savings of 222 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
First Contentful Paint
0.9 s
First Contentful Paint marks the time at which the first text or image is painted.
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.
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: