First visit
CO2 0.507g
SIZE 1.59 MB
Return visit
CO2 0.102g
SIZE 329.93 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
2
58.12 KB
0.018g
Stylesheet
22
80.36 KB
0.025g
Script
28
573.52 KB
0.178g
Image
7
468.93 KB
0.146g
Font
7
232.08 KB
0.072g
Other
1
220.05 KB
0.068g
History
Date
CO2
Size
16.Jun.2025
0.507g
1.59 MB
16.Jun.2025
0.516g
1.62 MB
16.Jun.2025
0.517g
1.63 MB
07.Oct.2024
0.306g
985.84 KB
26.Sep.2024
2.520g
6.71 MB
This website has been tested 5 times**
Core Web Vitals
Max Potential First Input Delay
50 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
Largest Contentful Paint
1.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Initial server response time was short
Root document took 10 ms
Keep the server response time for the main document short because all other requests depend on it.
Speed Index
0.9 s
Speed Index shows how quickly the contents of a page are visibly populated.
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.
Serve static assets with an efficient cache policy
56 resources found
A long cache lifetime can speed up repeat visits to your page.
Serve images in next-gen formats
Est savings of 151 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
Avoids an excessive DOM size
305 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Avoids enormous network payloads
Total size was 1,633 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Total Blocking Time
0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
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.
Server Backend Latencies
10 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.
Time to Interactive
1.9 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
First Contentful Paint
0.8 s
First Contentful Paint marks the time at which the first text or image is painted.
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.
Properly size images
Est savings of 205 KiB
Serve images that are appropriately-sized to save cellular data and improve load time.
Reduce unused JavaScript
Est savings of 245 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
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: