Tools & Wizards About Us
usb.it screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

usb.it

Unione Sindacale di Base: usb.it

Page Load Speed

4.4 sec in total

First Response

632 ms

Resources Loaded

3.5 sec

Page Rendered

332 ms

usb.it screenshot

About Website

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

Unione Sindacale di Base. Il sindacato che serve ai lavoratori! Connetti le tue lotte.

Visit usb.it

Key Findings

We analyzed Usb.it page load time and found that the first response time was 632 ms and then it took 3.8 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

usb.it performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value11,530 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.313

37/100

15%

TTI (Time to Interactive)

Value38.7 s

0/100

10%

Network Requests Diagram

www.usb.it

632 ms

stylesheet_352187d5d3.css

171 ms

noodle_real.css

171 ms

default.css

174 ms

main.css

258 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 78% of them (69 requests) were addressed to the original Usb.it, 13% (12 requests) were made to I.ytimg.com and 2% (2 requests) were made to Apis.google.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Usb.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 296.1 kB (25%)

Content Size

1.2 MB

After Optimization

883.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Usb.it main page is 1.2 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. 50% of websites need less resources to load. Images take 812.6 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 82.8 kB

  • Original 97.5 kB
  • After minification 70.4 kB
  • After compression 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 27.2 kB, which is 28% 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 82.8 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 19.9 kB

  • Original 812.6 kB
  • After minification 792.7 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. Usb images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 128.5 kB

  • Original 193.2 kB
  • After minification 170.6 kB
  • After compression 64.7 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 128.5 kB or 67% of the original size.

CSS Optimization

-85%

Potential reduce by 64.8 kB

  • Original 76.5 kB
  • After minification 54.9 kB
  • After compression 11.7 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. Usb.it needs all CSS files to be minified and compressed as it can save up to 64.8 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (38%)

Requests Now

88

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Usb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.usb.it

www.usb.it

632 ms

stylesheet_352187d5d3.css

stylesheet_352187d5d3.css

171 ms

noodle_real.css

noodle_real.css

171 ms

default.css

default.css

174 ms

main.css

main.css

258 ms

news.css

news.css

263 ms

jquery.lightbox.css

jquery.lightbox.css

339 ms

main2013.css

main2013.css

341 ms

plusone.js

plusone.js

111 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

526 ms

jquery.color.min.js

jquery.color.min.js

426 ms

jquery.lightbox.min.js

jquery.lightbox.min.js

518 ms

jquery.lightbox.conf.min.js

jquery.lightbox.conf.min.js

439 ms

jquery.cycle.all.js

jquery.cycle.all.js

703 ms

jquery.li-scroller.1.0.js

jquery.li-scroller.1.0.js

519 ms

default.js

default.js

594 ms

swfobject.js

swfobject.js

620 ms

javascript_757c080409.js

javascript_757c080409.js

687 ms

tx_usbgallery_default.css

tx_usbgallery_default.css

688 ms

cookiechoices.js

cookiechoices.js

698 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

18 ms

mqdefault.jpg

mqdefault.jpg

313 ms

bg_body.jpg

bg_body.jpg

288 ms

f954b88b8a.jpg

f954b88b8a.jpg

312 ms

f0b4de1401.jpg

f0b4de1401.jpg

313 ms

86af0a8892.jpg

86af0a8892.jpg

338 ms

5f73d746e4.jpg

5f73d746e4.jpg

313 ms

a72c8c417c.jpg

a72c8c417c.jpg

311 ms

7f49eb0701.jpg

7f49eb0701.jpg

437 ms

6607067320.gif

6607067320.gif

478 ms

6377b1feb0.jpeg

6377b1feb0.jpeg

481 ms

5b927cad32.jpg

5b927cad32.jpg

481 ms

ccfe865251.jpg

ccfe865251.jpg

572 ms

51e5ea94e7.jpg

51e5ea94e7.jpg

583 ms

32080088a3.jpg

32080088a3.jpg

670 ms

5b335573c5.jpg

5b335573c5.jpg

664 ms

2f08142269.gif

2f08142269.gif

668 ms

dipartimento_servizi.jpg

dipartimento_servizi.jpg

920 ms

e51f338e65.jpg

e51f338e65.jpg

828 ms

clear.gif

clear.gif

766 ms

banner_forum_diritti_lavoro.jpg

banner_forum_diritti_lavoro.jpg

904 ms

168619d133.gif

168619d133.gif

820 ms

bd9fa08f01.gif

bd9fa08f01.gif

820 ms

tw_40x40.png

tw_40x40.png

945 ms

yt_40x40.png

yt_40x40.png

994 ms

tv_40x40.png

tv_40x40.png

1002 ms

rss_40x40.png

rss_40x40.png

998 ms

an_40x40.png

an_40x40.png

1079 ms

lens_40x40.png

lens_40x40.png

1082 ms

campagna_2016_banner.jpg

campagna_2016_banner.jpg

1285 ms

rete_iside_290x90.jpg

rete_iside_290x90.jpg

1241 ms

facebook_1.jpg

facebook_1.jpg

1324 ms

confederazione_sociale.jpg

confederazione_sociale.jpg

1254 ms

banner_tui.jpg

banner_tui.jpg

1239 ms

logo_main.gif

logo_main.gif

1264 ms

mqdefault.jpg

mqdefault.jpg

294 ms

mqdefault.jpg

mqdefault.jpg

297 ms

mqdefault.jpg

mqdefault.jpg

314 ms

mqdefault.jpg

mqdefault.jpg

316 ms

mqdefault.jpg

mqdefault.jpg

312 ms

mqdefault.jpg

mqdefault.jpg

318 ms

mqdefault.jpg

mqdefault.jpg

314 ms

mqdefault.jpg

mqdefault.jpg

320 ms

mqdefault.jpg

mqdefault.jpg

359 ms

mqdefault.jpg

mqdefault.jpg

362 ms

mqdefault.jpg

mqdefault.jpg

363 ms

all.js

all.js

356 ms

iconahome.jpg

iconahome.jpg

1392 ms

banner_wftu.jpg

banner_wftu.jpg

1483 ms

divider.gif

divider.gif

1402 ms

ga.js

ga.js

222 ms

yt_play_arrow.png

yt_play_arrow.png

1156 ms

youtube_logo.png

youtube_logo.png

1164 ms

top_arcobaleno_2016.png

top_arcobaleno_2016.png

1200 ms

loading.gif

loading.gif

1286 ms

blank.gif

blank.gif

1302 ms

pause.gif

pause.gif

1296 ms

__utm.gif

__utm.gif

61 ms

play.gif

play.gif

1211 ms

58 ms

xd_arbiter.php

xd_arbiter.php

155 ms

xd_arbiter.php

xd_arbiter.php

265 ms

prev.gif

prev.gif

1205 ms

next.gif

next.gif

1207 ms

close.gif

close.gif

1288 ms

save.gif

save.gif

1215 ms

banner_wftu_03.jpg

banner_wftu_03.jpg

1484 ms

yt_pager_02.png

yt_pager_02.png

1154 ms

yt_pager_01.png

yt_pager_01.png

1188 ms

Accessibility Review

usb.it accessibility score

78

Accessibility Issues

ARIA

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.

Impact

Issue

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

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

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

usb.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

usb.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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    IT

  • Language Claimed

    IT

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Usb.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 Usb.it main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

usb.it

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