Report Summary

  • 9

    Performance

    Renders faster than
    23% 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

  • 75

    SEO

    Google-friendlier than
    32% of websites

tazzari-zero.com

Tazzari Zero – Zero Emission Mobility

Page Load Speed

19.4 sec in total

First Response

2.1 sec

Resources Loaded

17.1 sec

Page Rendered

222 ms

tazzari-zero.com screenshot

About Website

Click here to check amazing Tazzari Zero content for Italy. Otherwise, check out these important facts you probably never knew about tazzari-zero.com

TAZZARI EV progetta e produce veicoli elettrici a emissioni zero. ZERO EM1 è l’auto elettrica italiana, la prima citycar elettrica al mondo con telaio in fusioni di alluminio misto profilati, tecnolog...

Visit tazzari-zero.com

Key Findings

We analyzed Tazzari-zero.com page load time and found that the first response time was 2.1 sec and then it took 17.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

tazzari-zero.com performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value15.6 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value12,210 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.221

56/100

15%

TTI (Time to Interactive)

Value24.5 s

0/100

10%

Network Requests Diagram

index.html

2121 ms

tazzari.css

1570 ms

jquery-1.8.2.min.js

5 ms

colorpicker.css

1150 ms

colorpicker.js

1618 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 78% of them (36 requests) were addressed to the original Tazzari-zero.com, 4% (2 requests) were made to Modernizr.com and 4% (2 requests) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (10.3 sec) belongs to the original domain Tazzari-zero.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 288.4 kB (51%)

Content Size

566.5 kB

After Optimization

278.0 kB

In fact, the total size of Tazzari-zero.com main page is 566.5 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. 15% of websites need less resources to load. Images take 240.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 48.3 kB

  • Original 54.8 kB
  • After minification 22.1 kB
  • After compression 6.5 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 32.7 kB, which is 60% 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 48.3 kB or 88% of the original size.

Image Optimization

-16%

Potential reduce by 37.9 kB

  • Original 240.2 kB
  • After minification 202.3 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. Obviously, Tazzari Zero needs image optimization as it can save up to 37.9 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-72%

Potential reduce by 151.2 kB

  • Original 211.3 kB
  • After minification 123.2 kB
  • After compression 60.1 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 151.2 kB or 72% of the original size.

CSS Optimization

-85%

Potential reduce by 51.0 kB

  • Original 60.1 kB
  • After minification 39.5 kB
  • After compression 9.1 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. Tazzari-zero.com needs all CSS files to be minified and compressed as it can save up to 51.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (44%)

Requests Now

41

After Optimization

23

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tazzari Zero. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

tazzari-zero.com 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.

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

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

tazzari-zero.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

tazzari-zero.com SEO score

75

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tazzari-zero.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 Tazzari-zero.com 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

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