First visit
CO2 0.332g
SIZE 1.05 MB
Return visit
CO2 0.009g
SIZE 29.52 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
Other
1
507 B
0.000g
Document
1
29.52 KB
0.009g
Stylesheet
3
5.8 KB
0.002g
Script
22
579.5 KB
0.180g
Image
8
250.93 KB
0.078g
Fetch
9
163.81 KB
0.051g
XHR
1
5.32 KB
0.002g
Font
1
35.29 KB
0.011g
History
Date
CO2
Size
19.May.2025
0.332g
1.05 MB
19.May.2025
0.332g
1.05 MB
19.May.2025
0.181g
584.82 KB
20.Mar.2025
0.034g
108.09 KB
20.Mar.2025
0.460g
1.45 MB
20.Mar.2025
0.460g
1.45 MB
14.Mar.2025
0.177g
570.88 KB
11.Mar.2025
0.033g
104.77 KB
10.Mar.2025
0.032g
102.07 KB
10.Mar.2025
0.031g
100.17 KB
10.Mar.2025
0.167g
539.68 KB
This website has been tested 89 times**
Previous 10 test results are displayed above.
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.
Learn more about the Maximum Potential First Input Delay metric
Cumulative Layout Shift
0.067
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
1.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Reduce unused JavaScript
Est savings of 221 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Avoid multiple page redirects
Est savings of 230 ms
Redirects introduce additional delays before the page can be loaded.
Avoids an excessive DOM size
445 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Properly size images
Est savings of 226 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Initial server response time was short
Root document took 150 ms
Keep the server response time for the main document short because all other requests depend on it.
Total Blocking Time
50 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
First Contentful Paint
0.6 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.
Time to Interactive
1.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Server Backend Latencies
70 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.
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.
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.
Avoids enormous network payloads
Total size was 1,071 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Speed Index
2.3 s
Speed Index shows how quickly the contents of a page are visibly populated.
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: