Tools & Wizards About Us
a4u.pt screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

a4u.pt

A4U – SOLUÇÕES LED

Page Load Speed

2.7 sec in total

First Response

564 ms

Resources Loaded

1.7 sec

Page Rendered

429 ms

a4u.pt screenshot

About Website

Welcome to a4u.pt homepage info - get ready to check A4U best content right away, or after learning these important things about a4u.pt

A4U - A4U – SOLUÇÕES LED

Visit a4u.pt

Key Findings

We analyzed A4u.pt page load time and found that the first response time was 564 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

a4u.pt performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

79/100

10%

LCP (Largest Contentful Paint)

Value7.3 s

4/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value5,870 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.219

57/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

a4u.pt

564 ms

css

18 ms

css

29 ms

geral.css

118 ms

jquery-latest.min.js

16 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 63% of them (17 requests) were addressed to the original A4u.pt, 7% (2 requests) were made to Fonts.googleapis.com and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (726 ms) belongs to the original domain A4u.pt.

Page Optimization Overview & Recommendations

Page size can be reduced by 26.6 kB (7%)

Content Size

373.0 kB

After Optimization

346.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of A4u.pt main page is 373.0 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. Images take 318.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 5.1 kB

  • Original 7.6 kB
  • After minification 6.7 kB
  • After compression 2.5 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 896 B, which is 12% 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 5.1 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 318.0 kB
  • After minification 318.0 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. A4U images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 6.1 kB

  • Original 28.9 kB
  • After minification 25.4 kB
  • After compression 22.7 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 6.1 kB or 21% of the original size.

CSS Optimization

-83%

Potential reduce by 15.4 kB

  • Original 18.6 kB
  • After minification 12.0 kB
  • After compression 3.2 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. A4u.pt needs all CSS files to be minified and compressed as it can save up to 15.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (35%)

Requests Now

23

After Optimization

15

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of A4U. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

a4u.pt

a4u.pt

564 ms

css

css

18 ms

css

css

29 ms

geral.css

geral.css

118 ms

jquery-latest.min.js

jquery-latest.min.js

16 ms

unslider.js

unslider.js

198 ms

geral.js

geral.js

190 ms

addthis_widget.js

addthis_widget.js

51 ms

analytics.js

analytics.js

217 ms

logo-a4u-header.jpg

logo-a4u-header.jpg

136 ms

icon-flagPT-color-s.png

icon-flagPT-color-s.png

120 ms

icon-flagPT-bw-s.png

icon-flagPT-bw-s.png

105 ms

icon-flagEN-color-s.png

icon-flagEN-color-s.png

193 ms

icon-flagEN-bw-s.png

icon-flagEN-bw-s.png

192 ms

slider-luzquaidade.jpg

slider-luzquaidade.jpg

518 ms

slider-futurosustentavel.jpg

slider-futurosustentavel.jpg

726 ms

slider-valorilumnacao.jpg

slider-valorilumnacao.jpg

447 ms

xtrainfo-como_vemos_iluminacao.jpg

xtrainfo-como_vemos_iluminacao.jpg

248 ms

icon-arrow-to-right-xxl-slim.jpg

icon-arrow-to-right-xxl-slim.jpg

286 ms

xtrainfo-poupanca.jpg

xtrainfo-poupanca.jpg

293 ms

xtrainfo-catalogo.jpg

xtrainfo-catalogo.jpg

364 ms

logo-a4u-footer.jpg

logo-a4u-footer.jpg

380 ms

mem5YaGs126MiZpBA-UNirkOUuhv.woff

mem5YaGs126MiZpBA-UNirkOUuhv.woff

35 ms

mem8YaGs126MiZpBA-UFVZ0d.woff

mem8YaGs126MiZpBA-UFVZ0d.woff

35 ms

collect

collect

54 ms

collect

collect

49 ms

ga-audiences

ga-audiences

31 ms

Accessibility Review

a4u.pt accessibility score

93

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

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

Best Practices

a4u.pt 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

SEO Factors

a4u.pt SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    PT

  • Language Claimed

    PT

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise A4u.pt can be misinterpreted by Google and other search engines. Our service has detected that Portuguese is used on the page, and it matches the claimed language. Our system also found out that A4u.pt 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

a4u.pt

Open Graph data is detected on the main page of A4U. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: