First visit
CO2 0.376g
SIZE 1.18 MB
Return visit
CO2 0.004g
SIZE 14.37 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
13.42 KB
0.004g
Stylesheet
3
40.4 KB
0.013g
Script
11
782.85 KB
0.243g
Fetch
3
1.56 KB
0.000g
Font
2
371.55 KB
0.115g
Image
1
1.14 KB
0.000g
History
Date
CO2
Size
23.Feb.2025
0.376g
1.18 MB
23.Feb.2025
0.376g
1.18 MB
23.Feb.2025
0.376g
1.18 MB
This website has been tested 3 times**
Core Web Vitals
Max Potential First Input Delay
90 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
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
1.6 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Network Round Trip Times
0 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.
Reduce unused JavaScript
Potential savings of 376 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Eliminate render-blocking resources
Potential savings of 790 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
First Contentful Paint
1.5 s
First Contentful Paint marks the time at which the first text or image is painted.
Avoids enormous network payloads
Total size was 1,211 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Avoids an excessive DOM size
212 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Serve static assets with an efficient cache policy
1 resource found
A long cache lifetime can speed up repeat visits to your page.
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.
Time to Interactive
1.7 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Total Blocking Time
40 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
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.
Speed Index
1.5 s
Speed Index shows how quickly the contents of a page are visibly populated.
Initial server response time was short
Root document took 40 ms
Keep the server response time for the main document short because all other requests depend on it.
Minimizes main-thread work
0.8 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Minify JavaScript
Potential savings of 34 KiB
Minifying JavaScript files can reduce payload sizes and script parse time.
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: