Access sleepio.com. Onboarding Sleep Test

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value740 ms

40/100

30%

CLS (Cumulative Layout Shift)

Value0.496

16/100

15%

TTI (Time to Interactive)

Value11.2 s

19/100

10%

sleepio.com

13 ms

www.sleepio.com

78 ms

181043550.js

174 ms

common.css

26 ms

logged-out.css

24 ms

Our browser made a total of 61 requests to load all elements on the main page. We found that 64% of them (39 requests) were addressed to the original Sleepio.com, 7% (4 requests) were made to F.vimeocdn.com and 5% (3 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (174 ms) relates to the external source Cdn.optimizely.com.

Content Size

1.6 MB

After Optimization

787.3 kB

In fact, the total size of Sleepio.com main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Javascripts take 799.1 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 11.6 kB

Original 16.8 kB
After minification 16.7 kB
After compression 5.2 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 11.6 kB or 69% of the original size.

Image Optimization

-7%

Potential reduce by 37.6 kB

Original 522.2 kB
After minification 484.6 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Sleepio images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 542.0 kB

Original 799.1 kB
After minification 794.5 kB
After compression 257.1 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 542.0 kB or 68% of the original size.

CSS Optimization

-87%

Potential reduce by 265.7 kB

Original 306.1 kB
After minification 278.0 kB
After compression 40.3 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Sleepio.com needs all CSS files to be minified and compressed as it can save up to 265.7 kB or 87% of the original size.

Requests Now

After Optimization

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sleepio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.