First visit
CO2 0.172g
SIZE 467.51 KB
Return visit
CO2 0.030g
SIZE 80.69 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
65.69 KB
0.024g
Script
18
96.73 KB
0.035g
Image
47
158.54 KB
0.058g
Stylesheet
1
1.31 KB
0.000g
Fetch
5
144.96 KB
0.053g
XHR
447
284 B
0.000g
History
Date
CO2
Size
23.Feb.2025
0.172g
467.51 KB
06.Feb.2025
0.132g
358.85 KB
27.Nov.2024
0.201g
547.21 KB
09.Oct.2024
0.138g
375.12 KB
31.Oct.2023
0.161g
437.83 KB
25.Oct.2023
0.161g
438 KB
01.Sep.2023
0.098g
267.06 KB
11.Jul.2023
0.042g
134.88 KB
22.Mar.2023
0.099g
133.43 KB
20.Mar.2023
0.099g
133.07 KB
20.Mar.2023
0.098g
131.63 KB
This website has been tested 14 times**
Previous 10 test results are displayed above.
Core Web Vitals
Max Potential First Input Delay
70 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
0.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Serve static assets with an efficient cache policy
42 resources found
A long cache lifetime can speed up repeat visits to your page.
Avoids enormous network payloads
Total size was 468 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Server Backend Latencies
0 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.
First Contentful Paint
0.4 s
First Contentful Paint marks the time at which the first text or image is painted.
Speed Index
0.6 s
Speed Index shows how quickly the contents of a page are visibly populated.
Time to Interactive
0.6 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Network Round Trip Times
10 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.
JavaScript execution time
0.3 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
Total Blocking Time
10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Minimizes main-thread work
1.0 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
Avoids an excessive DOM size
509 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Initial server response time was short
Root document took 20 ms
Keep the server response time for the main document short because all other requests depend on it.
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: