First visit
CO2 0.053g
SIZE 171.47 KB
Return visit
CO2 0.053g
SIZE 171.47 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
2.33 KB
0.001g
Stylesheet
1
19.56 KB
0.006g
Script
1
105.35 KB
0.033g
Image
1
20.4 KB
0.006g
Font
1
23.83 KB
0.007g
Core Web Vitals
Max Potential First Input Delay
30 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
0.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Minimizes main-thread work
0.2 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.
Initial server response time was short
Root document took 160 ms
Keep the server response time for the main document short because all other requests depend on it.
Avoids enormous network payloads
Total size was 171 KiB
Large network payloads cost users real money and are highly correlated with long load times.
Reduce unused JavaScript
Potential savings of 72 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity.
Reduce unused CSS
Potential savings of 19 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity.
Serve static assets with an efficient cache policy
4 resources found
A long cache lifetime can speed up repeat visits to your page.
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.
Speed Index
0.7 s
Speed Index shows how quickly the contents of a page are visibly populated.
Time to Interactive
0.4 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Eliminate render-blocking resources
Potential savings of 70 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
JavaScript execution time
0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this.
First Contentful Paint
0.3 s
First Contentful Paint marks the time at which the first text or image is painted.
Avoids an excessive DOM size
65 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows
Notes
* These are assets not hosted on the same domain e.g. tracking scripts, iframe embeds, or files hosted on a CDN.
These measurements are for each new visitor, for returning visitors the footprint would be lower based on caching mechanisms.
Our brackets for the ratings: