Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 46% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

vivigas.it

VIVI energia - Fornitura di energia elettrica e gas | VIVI energia

Page Load Speed

16.8 sec in total

First Response

4.4 sec

Resources Loaded

11.8 sec

Page Rendered

565 ms

vivigas.it screenshot

About Website

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

VIVI energia è un'azienda nata nel 2003 e specializzata nella vendita di energia elettrica e gas metano a privati e aziende.

Visit vivigas.it

Key Findings

We analyzed Vivigas.it page load time and found that the first response time was 4.4 sec and then it took 12.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

vivigas.it performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

24/100

10%

LCP (Largest Contentful Paint)

Value31.2 s

0/100

25%

SI (Speed Index)

Value24.6 s

0/100

10%

TBT (Total Blocking Time)

Value3,840 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.406

24/100

15%

TTI (Time to Interactive)

Value30.9 s

0/100

10%

Network Requests Diagram

www.vivigas.it

4367 ms

wp-emoji-release.min.js

108 ms

font-awesome.min.css

256 ms

css

67 ms

jquery-ui.css

12 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 77% of them (82 requests) were addressed to the original Vivigas.it, 15% (16 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Vivigas.it.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (26%)

Content Size

6.5 MB

After Optimization

4.8 MB

In fact, the total size of Vivigas.it main page is 6.5 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. 65% of websites need less resources to load. Images take 5.0 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 49.7 kB

  • Original 63.1 kB
  • After minification 56.3 kB
  • After compression 13.4 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 6.8 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 49.7 kB or 79% of the original size.

Image Optimization

-11%

Potential reduce by 560.5 kB

  • Original 5.0 MB
  • After minification 4.4 MB

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. Obviously, VIVI Gas needs image optimization as it can save up to 560.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-75%

Potential reduce by 860.0 kB

  • Original 1.1 MB
  • After minification 940.1 kB
  • After compression 279.3 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 860.0 kB or 75% of the original size.

CSS Optimization

-78%

Potential reduce by 255.8 kB

  • Original 329.5 kB
  • After minification 299.7 kB
  • After compression 73.7 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. Vivigas.it needs all CSS files to be minified and compressed as it can save up to 255.8 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 51 (58%)

Requests Now

88

After Optimization

37

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VIVI Gas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 35 to 1 for JavaScripts and from 18 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

vivigas.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-hidden="true"] elements contain focusable descendents

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

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

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

vivigas.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

Missing source maps for large first-party JavaScript

SEO Factors

vivigas.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 Vivigas.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 Vivigas.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 data is detected on the main page of VIVI Gas. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: