First visit
CO2 0.490g
SIZE 1.54 MB
Return visit
CO2 0.203g
SIZE 653.04 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
4
63.56 KB
0.020g
Stylesheet
3
144.99 KB
0.045g
Script
27
721.11 KB
0.224g
Image
9
207.18 KB
0.064g
Other
23
1.77 KB
0.001g
Font
7
152.67 KB
0.047g
Fetch
9
8.25 KB
0.003g
XHR
5
279.63 KB
0.087g
Core Web Vitals
Max Potential First Input Delay
60 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
0.002
Cumulative Layout Shift measures the movement of visible elements within the viewport.
Largest Contentful Paint
0.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted.
Opportunities
Total Blocking Time
0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
First Meaningful Paint
0.6 s
First Meaningful Paint measures when the primary content of a page is visible.
Time to Interactive
1.2 s
Time to Interactive is the amount of time it takes for the page to become fully interactive.
Minimizes main-thread work
1.5 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this.
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.
Avoids enormous network payloads
Total size was 1,579 KiB
Large network payloads cost users real money and are highly correlated with long load times.
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.
Speed Index
1.2 s
Speed Index shows how quickly the contents of a page are visibly populated.
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.
Eliminate render-blocking resources
Potential savings of 130 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles.
Serve static assets with an efficient cache policy
24 resources found
A long cache lifetime can speed up repeat visits to your page.
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.
Avoids an excessive DOM size
713 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: