Access books.aspitalia.com. Libri su ASP, ASP.NET, Silverlight, Entity Framework, Visual Basic, C#, .NET Framework, Windows Phon...

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value5.9 s

49/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.252

49/100

15%

TTI (Time to Interactive)

Value5.0 s

76/100

10%

books.aspitalia.com

433 ms

books.aspitalia.com

654 ms

aspitalia.css

1066 ms

jquery.js

822 ms

responsive-nav.min.js

593 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 50% of them (30 requests) were addressed to the original Books.aspitalia.com, 17% (10 requests) were made to Fonts.gstatic.com and 12% (7 requests) were made to B.aspit.co. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Gui.aspitalia.com.

Content Size

638.3 kB

After Optimization

499.0 kB

In fact, the total size of Books.aspitalia.com main page is 638.3 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. 40% of websites need less resources to load. Images take 492.9 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 37.6 kB

Original 44.2 kB
After minification 44.2 kB
After compression 6.6 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 37.6 kB or 85% of the original size.

Image Optimization

-8%

Potential reduce by 40.5 kB

Original 492.9 kB
After minification 452.4 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. Books ASPItalia images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 61.1 kB

Original 94.2 kB
After minification 94.1 kB
After compression 33.1 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 61.1 kB or 65% of the original size.

CSS Optimization

-1%

Potential reduce by 63 B

Original 7.0 kB
After minification 7.0 kB
After compression 6.9 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. Books.aspitalia.com has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Books ASPItalia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-hidden="true"] elements contain focusable descendents

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.

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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

High

Links are not crawlable

High

robots.txt is not valid

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Books.aspitalia.com 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 Books.aspitalia.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

books.aspitalia.com

Open Graph description is not detected on the main page of Books ASPItalia. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Libri su ASP, ASP.NET, Silverlight, Entity Framework, Visual Basic, C#, .NET Framework, Windows Phone, HTML5 a cura dei nostri autori | ASPItalia.com

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

books.aspitalia.com

books.aspitalia.com

aspitalia.css

jquery.js

responsive-nav.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

books.aspitalia.com

books.aspitalia.com

aspitalia.css

jquery.js

responsive-nav.min.js

ads.js

css

css

4e40f35069.css

print.css

font-awesome-css.min.css

cover.jpg

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aspitalia.png

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