3.7 sec in total
559 ms
2.9 sec
212 ms
Welcome to booktab.it homepage info - get ready to check Booktab best content for Italy right away, or after learning these important things about booktab.it
Con Booktab i tuoi libri di testo con contenuti multimediali, esercizi interattivi e materiali aggiuntivi sono sul tuo tablet e sul tuo computer.
Visit booktab.itWe analyzed Booktab.it page load time and found that the first response time was 559 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
booktab.it performance score
name
value
score
weighting
Value5.1 s
9/100
10%
Value12.7 s
0/100
25%
Value8.8 s
16/100
10%
Value60 ms
100/100
30%
Value0.026
100/100
15%
Value9.6 s
29/100
10%
559 ms
119 ms
246 ms
349 ms
477 ms
Our browser made a total of 30 requests to load all elements on the main page. We found that 90% of them (27 requests) were addressed to the original Booktab.it, 7% (2 requests) were made to Ssl.google-analytics.com and 3% (1 request) were made to Rum-static.pingdom.net. The less responsive or slowest element that took the longest time to load (958 ms) belongs to the original domain Booktab.it.
Page size can be reduced by 303.8 kB (41%)
742.8 kB
439.0 kB
In fact, the total size of Booktab.it main page is 742.8 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. 25% of websites need less resources to load. Javascripts take 311.4 kB which makes up the majority of the site volume.
Potential reduce by 14.7 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 3.2 kB, which is 16% 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 14.7 kB or 74% of the original size.
Potential reduce by 8.7 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. Booktab images are well optimized though.
Potential reduce by 196.6 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 196.6 kB or 63% of the original size.
Potential reduce by 83.8 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. Booktab.it needs all CSS files to be minified and compressed as it can save up to 83.8 kB or 82% of the original size.
Number of requests can be reduced by 16 (57%)
28
12
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Booktab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
booktab.it
559 ms
style.css
119 ms
sequence.css
246 ms
login.css
349 ms
font-awesome.min.css
477 ms
magnific-popup.css
362 ms
jquery-1.7.2.min.js
813 ms
sequence.jquery-min.js
468 ms
jquery.magnific-popup.min.js
591 ms
jquery.fancybox-1.3.4.css
478 ms
jquery.fancybox-1.3.4.js
479 ms
comment-reply.min.js
586 ms
jquery.js
833 ms
jquery.form.min.js
592 ms
scripts.js
595 ms
retina.js
699 ms
style-beta.css
590 ms
booktabicon@2x.png
118 ms
user.png
121 ms
booktab1_5.png
958 ms
booktab-tredue.png
119 ms
icona-apple-store.png
120 ms
and-app.png
121 ms
kindle-app.png
235 ms
v3-news.png
348 ms
v3-help.png
350 ms
prum.min.js
35 ms
ga.js
56 ms
fontawesome-webfont.woff
576 ms
__utm.gif
25 ms
booktab.it accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
Image elements do not have [alt] attributes
booktab.it best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
booktab.it SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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
Document uses legible font sizes
Tap targets are not sized appropriately
IT
IT
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Booktab.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 Booktab.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.
booktab.it
Open Graph description is not detected on the main page of Booktab. 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: