Tools & Wizards About Us
voltimum.it screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

voltimum.it

Voltimum Italia – Il primo portale Europeo dell

Page Load Speed

3.6 sec in total

First Response

264 ms

Resources Loaded

3.2 sec

Page Rendered

223 ms

voltimum.it screenshot

About Website

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

Voltimum è da anni uno strumento indipendente e riconosciuto dal mercato come fornitore leader di informazioni indispensabili per la filiera elettrica

Visit voltimum.it

Key Findings

We analyzed Voltimum.it page load time and found that the first response time was 264 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

voltimum.it performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

7/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value1,260 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.074

95/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

Network Requests Diagram

voltimum.it

264 ms

www.voltimum.it

436 ms

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416 ms

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14 ms

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16 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Voltimum.it, 47% (32 requests) were made to D3p5wkccolzpd5.cloudfront.net and 41% (28 requests) were made to D2wmefcb92kfgk.cloudfront.net. The less responsive or slowest element that took the longest time to load (2 sec) relates to the external source D3p5wkccolzpd5.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 851.4 kB (45%)

Content Size

1.9 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Voltimum.it main page is 1.9 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. 45% of websites need less resources to load. Images take 857.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 90.9 kB

  • Original 111.6 kB
  • After minification 99.5 kB
  • After compression 20.8 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 12.1 kB, which is 11% 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 90.9 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 58.4 kB

  • Original 857.0 kB
  • After minification 798.7 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. Voltimum images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 249.4 kB

  • Original 366.8 kB
  • After minification 357.6 kB
  • After compression 117.5 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 249.4 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 452.8 kB

  • Original 558.9 kB
  • After minification 557.9 kB
  • After compression 106.0 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. Voltimum.it needs all CSS files to be minified and compressed as it can save up to 452.8 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (35%)

Requests Now

66

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Voltimum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

voltimum.it

voltimum.it

264 ms

www.voltimum.it

www.voltimum.it

436 ms

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416 ms

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14 ms

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16 ms

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19 ms

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22 ms

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182 ms

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23 ms

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195 ms

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9 ms

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6 ms

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87 ms

dc.js

dc.js

37 ms

kpi.php

kpi.php

98 ms

logo-scroll.png

logo-scroll.png

20 ms

Page-1-66x93.jpg

Page-1-66x93.jpg

212 ms

banner_elettromondo_hp.gif

banner_elettromondo_hp.gif

314 ms

banner-zumtobel_hp_v2.jpg

banner-zumtobel_hp_v2.jpg

240 ms

app_voltimum_banner_608x150_roll.jpg

app_voltimum_banner_608x150_roll.jpg

318 ms

banner_social_roll.jpg

banner_social_roll.jpg

197 ms

igar0.png

igar0.png

315 ms

philips2_1.jpg

philips2_1.jpg

239 ms

abb.png

abb.png

200 ms

img1_0.jpg

img1_0.jpg

258 ms

osram.png

osram.png

323 ms

thorn.gif

thorn.gif

325 ms

lbthorn.jpeg

lbthorn.jpeg

341 ms

f305pt8_p.jpg

f305pt8_p.jpg

402 ms

zumtobel.jpg

zumtobel.jpg

398 ms

prysmian_logo_big.jpg

prysmian_logo_big.jpg

400 ms

prysmian_club_logo_0.jpg

prysmian_club_logo_0.jpg

326 ms

200811186301philips-big.gif

200811186301philips-big.gif

407 ms

reggiani-logo-rgb_0.jpg

reggiani-logo-rgb_0.jpg

409 ms

massimiliano_cassinelli.jpg

massimiliano_cassinelli.jpg

430 ms

voltimum_app-relaunch_banner.jpg

voltimum_app-relaunch_banner.jpg

553 ms

200808062079logo_conergy_blu.gif

200808062079logo_conergy_blu.gif

482 ms

201106272646ilti-big.jpg

201106272646ilti-big.jpg

2045 ms

legrand.gif

legrand.gif

489 ms

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200810203739RADIUM.gif

491 ms

roldgrupposmall.jpg

roldgrupposmall.jpg

548 ms

big-logo.png

big-logo.png

11 ms

sprite.png

sprite.png

198 ms

glyphicons-halflings.png

glyphicons-halflings.png

237 ms

logo.png

logo.png

10 ms

main-nav-sprite.png

main-nav-sprite.png

193 ms

banner_premium_roll.jpg

banner_premium_roll.jpg

313 ms

ilti2.jpg

ilti2.jpg

255 ms

glowdim.jpg

glowdim.jpg

194 ms

bticino.png

bticino.png

339 ms

vivoarcos006.jpg

vivoarcos006.jpg

247 ms

fluke.gif

fluke.gif

262 ms

untitled-1.jpg

untitled-1.jpg

319 ms

philips_lighting_daniela_pavone.jpg

philips_lighting_daniela_pavone.jpg

331 ms

pri3342xl_0.jpg

pri3342xl_0.jpg

337 ms

schneider_electric.jpg

schneider_electric.jpg

266 ms

smartled-cover_0.jpg

smartled-cover_0.jpg

354 ms

BEqc0u9sEOA.jpg

BEqc0u9sEOA.jpg

396 ms

201205043865logo.jpg

201205043865logo.jpg

402 ms

20121109999logo-smal.jpg

20121109999logo-smal.jpg

415 ms

nexans.jpg

nexans.jpg

425 ms

__utm.gif

__utm.gif

17 ms

__utm.gif

__utm.gif

18 ms

icon-comment-18.png

icon-comment-18.png

372 ms

nav.gif

nav.gif

372 ms

widgets.js

widgets.js

136 ms

footer-divider.png

footer-divider.png

382 ms

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85 ms

Accessibility Review

voltimum.it accessibility score

65

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Best Practices

voltimum.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

Page has valid source maps

SEO Factors

voltimum.it SEO score

84

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

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

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 Voltimum.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 Voltimum.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

voltimum.it

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