Tools & Wizards About Us
libreriauniverso.it screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

libreriauniverso.it

Libreria Universo - Libri di medicina, scientifici e professionali

Page Load Speed

3.7 sec in total

First Response

223 ms

Resources Loaded

3.1 sec

Page Rendered

330 ms

libreriauniverso.it screenshot

About Website

Welcome to libreriauniverso.it homepage info - get ready to check Libreria Universo best content for Italy right away, or after learning these important things about libreriauniverso.it

Libreria Universo, vendita di libri di medicina, scientifici e professionali dal 1948, ora anche on-line.

Visit libreriauniverso.it

Key Findings

We analyzed Libreriauniverso.it page load time and found that the first response time was 223 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

libreriauniverso.it performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value11.6 s

0/100

25%

SI (Speed Index)

Value8.8 s

15/100

10%

TBT (Total Blocking Time)

Value1,380 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.103

89/100

15%

TTI (Time to Interactive)

Value12.9 s

13/100

10%

Network Requests Diagram

libreriauniverso.it

223 ms

libreriauniverso.it

375 ms

www.libreriauniverso.it

506 ms

js

64 ms

gtm.js

108 ms

Our browser made a total of 103 requests to load all elements on the main page. We found that 85% of them (88 requests) were addressed to the original Libreriauniverso.it, 3% (3 requests) were made to Googletagmanager.com and 3% (3 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (899 ms) belongs to the original domain Libreriauniverso.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 129.3 kB (6%)

Content Size

2.1 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Libreriauniverso.it main page is 2.1 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. 70% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 83.3 kB

  • Original 97.1 kB
  • After minification 59.0 kB
  • After compression 13.8 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 38.0 kB, which is 39% 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 83.3 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 12.6 kB

  • Original 1.8 MB
  • After minification 1.8 MB

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. Libreria Universo images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 33.3 kB

  • Original 167.4 kB
  • After minification 167.4 kB
  • After compression 134.1 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 33.3 kB or 20% of the original size.

CSS Optimization

-0%

Potential reduce by 127 B

  • Original 45.9 kB
  • After minification 45.9 kB
  • After compression 45.8 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. Libreriauniverso.it has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 39 (40%)

Requests Now

98

After Optimization

59

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 98 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Libreria Universo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

libreriauniverso.it

libreriauniverso.it

223 ms

libreriauniverso.it

libreriauniverso.it

375 ms

www.libreriauniverso.it

www.libreriauniverso.it

506 ms

js

js

64 ms

gtm.js

gtm.js

108 ms

main.css

main.css

279 ms

jquery.cookiebar.css

jquery.cookiebar.css

363 ms

core20180706.min.css

core20180706.min.css

373 ms

header20191208_02.min.css

header20191208_02.min.css

371 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

550 ms

bootstrap.min.js

bootstrap.min.js

375 ms

jquery.validate.min.js

jquery.validate.min.js

371 ms

additional-methods.min.js

additional-methods.min.js

547 ms

jquery.ui.core.min.js

jquery.ui.core.min.js

548 ms

jquery.ui.widget.min.js

jquery.ui.widget.min.js

547 ms

jquery.ui.menu.min.js

jquery.ui.menu.min.js

548 ms

jquery.ui.position.min.js

jquery.ui.position.min.js

548 ms

jquery.mobile.custom.min.js

jquery.mobile.custom.min.js

567 ms

jquery.ui.autocomplete.min.js

jquery.ui.autocomplete.min.js

575 ms

jquery.dotdotdot.min.js

jquery.dotdotdot.min.js

578 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

579 ms

multiple_jcarousel_20180323_02.min.js

multiple_jcarousel_20180323_02.min.js

579 ms

select2.min.js

select2.min.js

581 ms

select2_locale_it.min.js

select2_locale_it.min.js

633 ms

jquery.cookiebar.js

jquery.cookiebar.js

644 ms

conversion.js

conversion.js

98 ms

slider-bar0005.min.js

slider-bar0005.min.js

677 ms

roboto-call.css

roboto-call.css

813 ms

analytics.js

analytics.js

37 ms

collect

collect

12 ms

collect

collect

14 ms

js

js

49 ms

ga-audiences

ga-audiences

35 ms

fbevents.js

fbevents.js

176 ms

logo_blu_v0001.jpg

logo_blu_v0001.jpg

178 ms

logo_LU_trasp_2x_v0001.png

logo_LU_trasp_2x_v0001.png

177 ms

bh010_gift.png

bh010_gift.png

176 ms

lista_categorie.png

lista_categorie.png

178 ms

707387789619.jpg

707387789619.jpg

178 ms

536.00025.jpg

536.00025.jpg

176 ms

MEDISTETONR.jpg

MEDISTETONR.jpg

261 ms

8007529440418.jpg

8007529440418.jpg

266 ms

RIGIDANERA.jpg

RIGIDANERA.jpg

265 ms

MORBIDARANCIO.jpg

MORBIDARANCIO.jpg

262 ms

MEDIECG.jpg

MEDIECG.jpg

263 ms

8023279350906.jpg

8023279350906.jpg

353 ms

assistenza_header.png

assistenza_header.png

354 ms

attiva_buono.png

attiva_buono.png

357 ms

user.png

user.png

355 ms

listadesideri.png

listadesideri.png

357 ms

carrello.png

carrello.png

358 ms

logo_trasp2x.png

logo_trasp2x.png

442 ms

143_littmann.jpg

143_littmann.jpg

533 ms

087_kids.jpg

087_kids.jpg

804 ms

139_rate.png

139_rate.png

899 ms

096_mediverso.jpg

096_mediverso.jpg

720 ms

bsbig001_cultura.jpg

bsbig001_cultura.jpg

535 ms

bsbig001_gruppi.jpg

bsbig001_gruppi.jpg

624 ms

9791280331205.jpg

9791280331205.jpg

625 ms

9788829934317.jpg

9788829934317.jpg

630 ms

BART24.jpg

BART24.jpg

716 ms

9788829934454.jpg

9788829934454.jpg

718 ms

9788821457272.jpg

9788821457272.jpg

721 ms

9788821459153.jpg

9788821459153.jpg

810 ms

9788829934782.jpg

9788829934782.jpg

810 ms

9791281372085.jpg

9791281372085.jpg

812 ms

9788821457777.jpg

9788821457777.jpg

814 ms

sdk.js

sdk.js

203 ms

9788849007701.jpg

9788849007701.jpg

873 ms

175 ms

9791280331182.jpg

9791280331182.jpg

846 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

832 ms

events.js

events.js

67 ms

9788865152201.jpg

9788865152201.jpg

735 ms

q3_1_borse.jpg

q3_1_borse.jpg

833 ms

q3_2_otoscopio.jpg

q3_2_otoscopio.jpg

832 ms

q3_3_littmann.jpg

q3_3_littmann.jpg

821 ms

home.png

home.png

831 ms

user_footer.png

user_footer.png

802 ms

sdk.js

sdk.js

4 ms

16 ms

main.MWNkMWZjOGNjNA.js

main.MWNkMWZjOGNjNA.js

112 ms

carrello_footer.png

carrello_footer.png

828 ms

servizi.png

servizi.png

828 ms

assistenza.png

assistenza.png

829 ms

visa.png

visa.png

826 ms

postepay.png

postepay.png

832 ms

contrassegno.png

contrassegno.png

743 ms

paypal_pay.png

paypal_pay.png

827 ms

bartolini.png

bartolini.png

825 ms

gls.png

gls.png

826 ms

edra.png

edra.png

826 ms

littmann.png

littmann.png

831 ms

erka.png

erka.png

749 ms

mcgrawhill.png

mcgrawhill.png

738 ms

pastelli.png

pastelli.png

737 ms

piccin.png

piccin.png

650 ms

edises.png

edises.png

649 ms

zanichelli.png

zanichelli.png

649 ms

heine.png

heine.png

563 ms

mediverso.png

mediverso.png

644 ms

lente_ricerca.png

lente_ricerca.png

645 ms

ui-bg_glass_75_ffffff_1x400.png

ui-bg_glass_75_ffffff_1x400.png

642 ms

Accessibility Review

libreriauniverso.it accessibility score

91

Accessibility Issues

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Buttons do not have an accessible name

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

libreriauniverso.it best practices score

58

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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

libreriauniverso.it SEO score

88

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    IT

  • Language Claimed

    IT

  • Encoding

    UTF-8

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

libreriauniverso.it

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