Tools & Wizards About Us
sleepio.com screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

sleepio.com

Onboarding Sleep Test - Sleepio

Page Load Speed

1.1 sec in total

First Response

13 ms

Resources Loaded

732 ms

Page Rendered

370 ms

sleepio.com screenshot

About Website

Click here to check amazing Sleepio content for United States. Otherwise, check out these important facts you probably never knew about sleepio.com

Sleepio is an online CBT program clinically proven to help you sleep well without pills or potions. Available from www.boots.com/Sleepio

Visit sleepio.com

Key Findings

We analyzed Sleepio.com page load time and found that the first response time was 13 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

sleepio.com performance score

21

Measured Metrics

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%

Network Requests Diagram

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.

Page Optimization Overview & Recommendations

Page size can be reduced by 827.8 kB (51%)

Content Size

1.6 MB

After Optimization

787.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

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 770.0 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

-67%

Potential reduce by 512.9 kB

  • Original 770.0 kB
  • After minification 765.4 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 512.9 kB or 67% 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 Breakdown

Number of requests can be reduced by 15 (26%)

Requests Now

57

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

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.

Network Requests Diagram

sleepio.com

sleepio.com

13 ms

www.sleepio.com

www.sleepio.com

78 ms

181043550.js

181043550.js

174 ms

common.css

common.css

26 ms

logged-out.css

logged-out.css

24 ms

jquery-ui.css

jquery-ui.css

25 ms

platform.js

platform.js

69 ms

jquery.js

jquery.js

41 ms

jqueryPlugins.js

jqueryPlugins.js

29 ms

sleepio.js

sleepio.js

45 ms

jquery-ui.js

jquery-ui.js

40 ms

heap-447021572.js

heap-447021572.js

89 ms

pub-d359414e8144ae490ec18b7e1a85c746.js

pub-d359414e8144ae490ec18b7e1a85c746.js

70 ms

sleepio-logo-medium-blue@2x.png

sleepio-logo-medium-blue@2x.png

41 ms

49126753

49126753

103 ms

51216128

51216128

129 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

13 ms

dc.js

dc.js

107 ms

guardian-bw.png

guardian-bw.png

11 ms

wired-bw.png

wired-bw.png

26 ms

la-times-bw.png

la-times-bw.png

26 ms

new-yorker-bw.png

new-yorker-bw.png

25 ms

lancet-bw.png

lancet-bw.png

33 ms

jawbone-bw.png

jawbone-bw.png

31 ms

health-bw.png

health-bw.png

33 ms

fitbit-bw.png

fitbit-bw.png

40 ms

colin-espie@2x.png

colin-espie@2x.png

40 ms

simon-kyle@2x.png

simon-kyle@2x.png

40 ms

bryony-sheaves@2x.png

bryony-sheaves@2x.png

40 ms

science-your-lifestyle.png

science-your-lifestyle.png

39 ms

science-your-thoughts.png

science-your-thoughts.png

38 ms

science-your-schedule.png

science-your-schedule.png

43 ms

works-set-goal.png

works-set-goal.png

49 ms

works-test-sleep.png

works-test-sleep.png

50 ms

works-build-program.png

works-build-program.png

49 ms

works-cbt-lesson.png

works-cbt-lesson.png

66 ms

laura.png

laura.png

67 ms

anita.png

anita.png

67 ms

neil.png

neil.png

67 ms

doforyou-fall-asleep.png

doforyou-fall-asleep.png

68 ms

doforyou-stay-asleep.png

doforyou-stay-asleep.png

67 ms

doforyou-feel-refreshed.png

doforyou-feel-refreshed.png

68 ms

doforyou-boost-energy.png

doforyou-boost-energy.png

70 ms

doforyou-improve-performance.png

doforyou-improve-performance.png

69 ms

doforyou-drug-free.png

doforyou-drug-free.png

68 ms

Niteweit.woff

Niteweit.woff

69 ms

FontAwesome.woff

FontAwesome.woff

92 ms

iframe

iframe

82 ms

player.js

player.js

171 ms

player.css

player.css

139 ms

ga.js

ga.js

85 ms

vuid.min.js

vuid.min.js

135 ms

h

h

159 ms

1233565733-idpiframe.js

1233565733-idpiframe.js

91 ms

__utm.gif

__utm.gif

68 ms

__utm.gif

__utm.gif

38 ms

__utm.gif

__utm.gif

13 ms

iframerpc

iframerpc

97 ms

proxy.html

proxy.html

42 ms

492947177.jpg

492947177.jpg

78 ms

342498782.jpg

342498782.jpg

56 ms

Accessibility Review

sleepio.com accessibility score

95

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Best Practices

sleepio.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

sleepio.com SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Page is blocked from indexing

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sleepio.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Sleepio.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

sleepio.com

Open Graph data is detected on the main page of Sleepio. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: