Tools & Wizards About Us
4books.it screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

4books.it

4books - The best books, in a nutshell, exclusive podcasts and hot news from around the world

Page Load Speed

4.2 sec in total

First Response

129 ms

Resources Loaded

3.2 sec

Page Rendered

846 ms

4books.it screenshot

About Website

Visit 4books.it now to see the best up-to-date 4 Books content for Italy and also check out these interesting facts you probably never knew about 4books.it

With 4books you can improve yourself and your skills every day, by reading or listening to book write-ups, exclusive podcasts and the top news from around the world

Visit 4books.it

Key Findings

We analyzed 4books.it page load time and found that the first response time was 129 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

4books.it performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

69/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value5.1 s

62/100

10%

TBT (Total Blocking Time)

Value1,700 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.025

100/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

4books.it

129 ms

en

663 ms

css

36 ms

css

52 ms

js.cookie.min.js

17 ms

Our browser made a total of 81 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original 4books.it, 63% (51 requests) were made to D2vkd9mgo8gxzn.cloudfront.net and 25% (20 requests) were made to 4books.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source D2vkd9mgo8gxzn.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 302.1 kB (30%)

Content Size

1.0 MB

After Optimization

699.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of 4books.it main page is 1.0 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. 45% of websites need less resources to load. Images take 552.8 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 201.5 kB

  • Original 225.6 kB
  • After minification 176.5 kB
  • After compression 24.1 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. This page needs HTML code to be minified as it can gain 49.1 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 201.5 kB or 89% of the original size.

Image Optimization

-12%

Potential reduce by 68.1 kB

  • Original 552.8 kB
  • After minification 484.7 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. Obviously, 4 Books needs image optimization as it can save up to 68.1 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-17%

Potential reduce by 32.2 kB

  • Original 192.3 kB
  • After minification 192.3 kB
  • After compression 160.1 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 32.2 kB or 17% of the original size.

CSS Optimization

-1%

Potential reduce by 254 B

  • Original 30.4 kB
  • After minification 30.4 kB
  • After compression 30.2 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. 4books.it has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (8%)

Requests Now

74

After Optimization

68

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 4 Books. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

4books.it

4books.it

129 ms

en

en

663 ms

css

css

36 ms

css

css

52 ms

js.cookie.min.js

js.cookie.min.js

17 ms

analytics.js

analytics.js

18 ms

module_landing.css

module_landing.css

521 ms

email-decode.min.js

email-decode.min.js

27 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

25 ms

bootstrap-notify.min.js

bootstrap-notify.min.js

22 ms

module_landing.js

module_landing.js

26 ms

analytics.js

analytics.js

28 ms

s1707123886533-comunicazione.jpeg

s1707123886533-comunicazione.jpeg

35 ms

4books-logo.svg

4books-logo.svg

13 ms

visitor.jpg

visitor.jpg

18 ms

HP-features-esplora-en@2x.webp

HP-features-esplora-en@2x.webp

409 ms

HP-features-theupdate-en@2x.webp

HP-features-theupdate-en@2x.webp

628 ms

app_download.webp

app_download.webp

619 ms

apple_badge_white_en.svg

apple_badge_white_en.svg

24 ms

google_badge_white_en.svg

google_badge_white_en.svg

36 ms

s1707123904438-creativita.jpeg

s1707123904438-creativita.jpeg

46 ms

s1707124319714-apprendimento-efficace.jpeg

s1707124319714-apprendimento-efficace.jpeg

27 ms

s1707124097792-intelligenza-emotiva.jpeg

s1707124097792-intelligenza-emotiva.jpeg

38 ms

s1707124036400-imprenditorialita.jpeg

s1707124036400-imprenditorialita.jpeg

22 ms

s1707124403542-sostenibilita.jpeg

s1707124403542-sostenibilita.jpeg

342 ms

s1707123941210-cultura-generale.jpeg

s1707123941210-cultura-generale.jpeg

318 ms

s1707124355222-mentalita-di-crescita.jpeg

s1707124355222-mentalita-di-crescita.jpeg

32 ms

s1707124069574-inclusivita.jpeg

s1707124069574-inclusivita.jpeg

34 ms

s1707123708447-capacita-interpersonali.jpeg

s1707123708447-capacita-interpersonali.jpeg

39 ms

s1707124119375-leadership.jpeg

s1707124119375-leadership.jpeg

334 ms

s1707124139220-marketing.jpeg

s1707124139220-marketing.jpeg

349 ms

s1707124391666-mindfulness.jpeg

s1707124391666-mindfulness.jpeg

49 ms

s1707123988301-gestione-del-denaro.jpeg

s1707123988301-gestione-del-denaro.jpeg

50 ms

s1707124424418-negoziazione.jpeg

s1707124424418-negoziazione.jpeg

374 ms

s1707124449556-problem-solving.jpeg

s1707124449556-problem-solving.jpeg

350 ms

s1707124491259-produttivita.jpeg

s1707124491259-produttivita.jpeg

634 ms

s1707124433709-project-management.jpeg

s1707124433709-project-management.jpeg

656 ms

s1707124420661-public-speaking.jpeg

s1707124420661-public-speaking.jpeg

655 ms

s1707124339915-tecniche-di-vendita.jpeg

s1707124339915-tecniche-di-vendita.jpeg

652 ms

s1707123964853-cura-di-se.jpeg

s1707123964853-cura-di-se.jpeg

644 ms

s1707124386235-storytelling.jpeg

s1707124386235-storytelling.jpeg

385 ms

s1707124011828-gestione-dello-stress.jpeg

s1707124011828-gestione-dello-stress.jpeg

682 ms

s1707124375361-team-management.jpeg

s1707124375361-team-management.jpeg

935 ms

s1707123864026-comprensione-del-mondo.jpeg

s1707123864026-comprensione-del-mondo.jpeg

667 ms

s1707123763098-comprensione-del-futuro.jpeg

s1707123763098-comprensione-del-futuro.jpeg

658 ms

s1707124411979-scrittura.jpeg

s1707124411979-scrittura.jpeg

661 ms

the-magic-of-thinking-big.jpeg

the-magic-of-thinking-big.jpeg

966 ms

think-like-da-vinci.jpeg

think-like-da-vinci.jpeg

661 ms

show-your-work.jpeg

show-your-work.jpeg

963 ms

s1672131460658-a-minute-to-think.jpeg

s1672131460658-a-minute-to-think.jpeg

966 ms

how-emotions-are-made.jpeg

how-emotions-are-made.jpeg

676 ms

the-art-of-asking.jpeg

the-art-of-asking.jpeg

986 ms

sei-come-pensi-di-essere.jpeg

sei-come-pensi-di-essere.jpeg

984 ms

deep-work.jpeg

deep-work.jpeg

1237 ms

extinguish-burnout.jpeg

extinguish-burnout.jpeg

1271 ms

s1672130258301-12-notes.jpeg

s1672130258301-12-notes.jpeg

1282 ms

the-art-of-happiness.jpeg

the-art-of-happiness.jpeg

1265 ms

s1690467270175-mistakes-were-made-but-not-by-me.jpeg

s1690467270175-mistakes-were-made-but-not-by-me.jpeg

1282 ms

s1656075820484-the-total-money-makeover.jpeg

s1656075820484-the-total-money-makeover.jpeg

1254 ms

humankind.jpeg

humankind.jpeg

1503 ms

s1651685488292-misbehaving.jpeg

s1651685488292-misbehaving.jpeg

1560 ms

Thinking-fast-and-slow-bestseller.jpeg

Thinking-fast-and-slow-bestseller.jpeg

1547 ms

machine-platform-crowd.jpeg

machine-platform-crowd.jpeg

1543 ms

s1670579400966-mini-habits.jpeg

s1670579400966-mini-habits.jpeg

1554 ms

libera-la-mente.jpeg

libera-la-mente.jpeg

1262 ms

hce-la-scienza-delle-interazioni-umane.jpeg

hce-la-scienza-delle-interazioni-umane.jpeg

1302 ms

the-quick-and-easy-way-to-effective-speaking.jpeg

the-quick-and-easy-way-to-effective-speaking.jpeg

1536 ms

the-psychology-of-money.jpeg

the-psychology-of-money.jpeg

1545 ms

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s1665649738951-letters-from-a-stoic.jpeg

1553 ms

s1675953153509-rethink-creativity.jpeg

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1568 ms

fc2f25836a033e9c9228.svg

fc2f25836a033e9c9228.svg

52 ms

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52 ms

01ca927ed3c4c8dc68c8.svg

01ca927ed3c4c8dc68c8.svg

54 ms

4books-logo_white.svg

4books-logo_white.svg

53 ms

apple_badge_en.svg

apple_badge_en.svg

58 ms

google_badge_en.svg

google_badge_en.svg

55 ms

k3k6o8UDI-1M0wlSV9XAw6lQkqWY8Q82sJaRE-NWIDdgffTTNDNZ9xds.ttf

k3k6o8UDI-1M0wlSV9XAw6lQkqWY8Q82sJaRE-NWIDdgffTTNDNZ9xds.ttf

49 ms

k3k6o8UDI-1M0wlSV9XAw6lQkqWY8Q82sJaRE-NWIDdgffTTBjNZ9xds.ttf

k3k6o8UDI-1M0wlSV9XAw6lQkqWY8Q82sJaRE-NWIDdgffTTBjNZ9xds.ttf

48 ms

k3k6o8UDI-1M0wlSV9XAw6lQkqWY8Q82sJaRE-NWIDdgffTT0zRZ9xds.ttf

k3k6o8UDI-1M0wlSV9XAw6lQkqWY8Q82sJaRE-NWIDdgffTT0zRZ9xds.ttf

69 ms

0QI6MX1D_JOuGQbT0gvTJPa787weuxJBkqg.ttf

0QI6MX1D_JOuGQbT0gvTJPa787weuxJBkqg.ttf

70 ms

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

PAJJhLM6sSoWKfWCAAwDAjgbRAAB42mNgYGBkAIIbCZo5IPrmUn0hGA0AO8EFTQAA

16 ms

Accessibility Review

4books.it accessibility score

89

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

4books.it best practices score

75

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

4books.it SEO score

92

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 4books.it can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that 4books.it 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

4books.it

Open Graph description is not detected on the main page of 4 Books. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: