Report Summary

  • 86

    Performance

    Renders faster than
    89% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 79% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

areariservata.centrolibri.it

Libri scolastica varia film dvd ingrosso cartolerie librerie - Centro Libri

Page Load Speed

2.4 sec in total

First Response

397 ms

Resources Loaded

1.8 sec

Page Rendered

179 ms

About Website

Welcome to areariservata.centrolibri.it homepage info - get ready to check Areariservata Centro Libri best content for Italy right away, or after learning these important things about areariservata.centrolibri.it

Grossista da oltre trent�anni, Centro Libri si propone come partner ideale di librerie e cartolibrerie per la fornitura di testi scolastici e libri di varia di tutti gli editori.

Visit areariservata.centrolibri.it

Key Findings

We analyzed Areariservata.centrolibri.it page load time and found that the first response time was 397 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

areariservata.centrolibri.it performance score

86

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

64/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

areariservata.centrolibri.it

397 ms

Login

96 ms

bootstrap.min.css

173 ms

font-awesome.min.css

258 ms

util.css

350 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Areariservata.centrolibri.it, 94% (15 requests) were made to Login.centrolibri.it. The less responsive or slowest element that took the longest time to load (507 ms) relates to the external source Login.centrolibri.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 46.4 kB (20%)

Content Size

229.4 kB

After Optimization

183.0 kB

In fact, the total size of Areariservata.centrolibri.it main page is 229.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 102.0 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 2.3 kB

  • Original 3.4 kB
  • After minification 2.6 kB
  • After compression 1.1 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 759 B, which is 23% 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 2.3 kB or 68% of the original size.

Image Optimization

-10%

Potential reduce by 10.2 kB

  • Original 102.0 kB
  • After minification 91.8 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. Areariservata Centro Libri images are well optimized though.

JavaScript Optimization

-24%

Potential reduce by 14.6 kB

  • Original 60.8 kB
  • After minification 60.8 kB
  • After compression 46.1 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 14.6 kB or 24% of the original size.

CSS Optimization

-30%

Potential reduce by 19.3 kB

  • Original 63.3 kB
  • After minification 63.3 kB
  • After compression 44.0 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. Areariservata.centrolibri.it needs all CSS files to be minified and compressed as it can save up to 19.3 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (33%)

Requests Now

9

After Optimization

6

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Areariservata Centro Libri. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

areariservata.centrolibri.it accessibility score

92

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

areariservata.centrolibri.it 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

High

Page has valid source maps

SEO Factors

areariservata.centrolibri.it SEO score

92

Search Engine Optimization Advices

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

    IT

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Areariservata.centrolibri.it can be misinterpreted by Google and other search engines. Our service has detected that Italian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Areariservata.centrolibri.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

Open Graph description is not detected on the main page of Areariservata Centro Libri. 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: