Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

free.luis.de

Kamera-Monitor-Systeme & Fahrerassistenz | LUIS Technology

Page Load Speed

5.1 sec in total

First Response

1.4 sec

Resources Loaded

3.1 sec

Page Rendered

653 ms

free.luis.de screenshot

About Website

Click here to check amazing Free LUIS content for Germany. Otherwise, check out these important facts you probably never knew about free.luis.de

Ihr Partner für Kamera-Monitor-Systeme & Telematik ✓ Direkt von Hersteller ✓ 48 Monate Garantie ✓ Kostenfreie Beratung ✓ Individuelle Lösungen.

Visit free.luis.de

Key Findings

We analyzed Free.luis.de page load time and found that the first response time was 1.4 sec 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

free.luis.de performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value17.0 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value2,840 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.45

20/100

15%

TTI (Time to Interactive)

Value22.3 s

1/100

10%

Network Requests Diagram

free.luis.de

1359 ms

wp-emoji-release.min.js

344 ms

front.css

334 ms

styles.css

343 ms

menu-image.css

345 ms

Our browser made a total of 83 requests to load all elements on the main page. We found that 6% of them (5 requests) were addressed to the original Free.luis.de, 75% (62 requests) were made to Luis.de and 6% (5 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Free.luis.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 714.2 kB (37%)

Content Size

1.9 MB

After Optimization

1.2 MB

In fact, the total size of Free.luis.de 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. 60% of websites need less resources to load. Images take 996.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 40.2 kB

  • Original 51.6 kB
  • After minification 49.3 kB
  • After compression 11.5 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 40.2 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 31.8 kB

  • Original 996.1 kB
  • After minification 964.3 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. Free LUIS images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 338.5 kB

  • Original 521.0 kB
  • After minification 495.7 kB
  • After compression 182.4 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 338.5 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 303.7 kB

  • Original 363.4 kB
  • After minification 334.5 kB
  • After compression 59.8 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. Free.luis.de needs all CSS files to be minified and compressed as it can save up to 303.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (43%)

Requests Now

76

After Optimization

43

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Free LUIS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

free.luis.de accessibility score

61

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

[role]s do not have all required [aria-*] attributes

High

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

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

free.luis.de best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

free.luis.de SEO score

86

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

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Free.luis.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Free.luis.de 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 description is not detected on the main page of Free LUIS. 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: