Tools & Wizards About Us
lucas-nuelle.pl screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    72% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

lucas-nuelle.pl

Lucas Nülle - Lucas-Nuelle Training Systems for vocational training and didactic

Page Load Speed

3.6 sec in total

First Response

219 ms

Resources Loaded

3 sec

Page Rendered

336 ms

lucas-nuelle.pl screenshot

About Website

Visit lucas-nuelle.pl now to see the best up-to-date Lucas Nuelle content and also check out these interesting facts you probably never knew about lucas-nuelle.pl

Lucas-Nülle Training systems

Visit lucas-nuelle.pl

Key Findings

We analyzed Lucas-nuelle.pl page load time and found that the first response time was 219 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 60% of websites can load faster.

Performance Metrics

lucas-nuelle.pl performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value6.1 s

45/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value1.89

0/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

lucas-nuelle.pl

219 ms

www.lucas-nuelle.us

191 ms

www.lucas-nuelle.us

640 ms

cookie.js

183 ms

lucas_nuelle_en-us.svg

205 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Lucas-nuelle.pl, 98% (49 requests) were made to Lucas-nuelle.us. The less responsive or slowest element that took the longest time to load (1 sec) relates to the external source Lucas-nuelle.us.

Page Optimization Overview & Recommendations

Page size can be reduced by 181.9 kB (13%)

Content Size

1.4 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lucas-nuelle.pl main page is 1.4 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 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 158.4 kB

  • Original 183.4 kB
  • After minification 169.7 kB
  • After compression 25.0 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 158.4 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 15.4 kB

  • Original 1.1 MB
  • After minification 1.1 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. Lucas Nuelle images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 1.8 kB

  • Original 41.4 kB
  • After minification 41.4 kB
  • After compression 39.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-11%

Potential reduce by 6.3 kB

  • Original 58.8 kB
  • After minification 58.7 kB
  • After compression 52.5 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. Lucas-nuelle.pl needs all CSS files to be minified and compressed as it can save up to 6.3 kB or 11% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (26%)

Requests Now

42

After Optimization

31

  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lucas Nuelle. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lucas-nuelle.pl

lucas-nuelle.pl

219 ms

www.lucas-nuelle.us

www.lucas-nuelle.us

191 ms

www.lucas-nuelle.us

www.lucas-nuelle.us

640 ms

cookie.js

cookie.js

183 ms

lucas_nuelle_en-us.svg

lucas_nuelle_en-us.svg

205 ms

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-regular.ttf

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-regular.ttf

539 ms

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-700.ttf

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-700.ttf

807 ms

jquery.js

jquery.js

383 ms

plugins.min.php

plugins.min.php

512 ms

web.css

web.css

480 ms

toggleVideoBg.js

toggleVideoBg.js

285 ms

arrow-down.svg

arrow-down.svg

376 ms

ln_icon_unitrain.png

ln_icon_unitrain.png

468 ms

unitrain-h400-ar.jpg

unitrain-h400-ar.jpg

565 ms

ln_icon_automattechnik.png

ln_icon_automattechnik.png

558 ms

automatisierungstechnik-h400-ar.jpg

automatisierungstechnik-h400-ar.jpg

570 ms

ln_icon_nfztechnik.png

ln_icon_nfztechnik.png

602 ms

nfztechnik-h400-ar.jpg

nfztechnik-h400-ar.jpg

613 ms

ln_icon_maschienenundantriebstechnik.png

ln_icon_maschienenundantriebstechnik.png

650 ms

maschinen_antriebstechnik-h400-ar.jpg

maschinen_antriebstechnik-h400-ar.jpg

747 ms

ln_icon_regelungstechnik.png

ln_icon_regelungstechnik.png

661 ms

mess_reglungstechnik-h400-ar.jpg

mess_reglungstechnik-h400-ar.jpg

786 ms

icon_elektr_energietechnik.png

icon_elektr_energietechnik.png

705 ms

elektrische_energietechnik-h400-ar.jpg

elektrische_energietechnik-h400-ar.jpg

922 ms

ln_icon_elektropneu_hydraulik.png

ln_icon_elektropneu_hydraulik.png

753 ms

pneumatik_hydraulik-h400-ar.jpg

pneumatik_hydraulik-h400-ar.jpg

799 ms

ln_icon_regenerativeenergien.png

ln_icon_regenerativeenergien.png

838 ms

regenerative_energien-h400-ar.jpg

regenerative_energien-h400-ar.jpg

844 ms

ln_icon_kfztechnik.png

ln_icon_kfztechnik.png

877 ms

titel_us-page-h400-ar.jpg

titel_us-page-h400-ar.jpg

882 ms

ln_icon_kommtechnik.png

ln_icon_kommtechnik.png

890 ms

kommunikationstechnik-h400-ar.jpg

kommunikationstechnik-h400-ar.jpg

929 ms

ln_icon_microcomputer.png

ln_icon_microcomputer.png

936 ms

mikrocomputer-h400-ar.jpg

mikrocomputer-h400-ar.jpg

970 ms

ln_icon_gebaeudesystemtechnik.png

ln_icon_gebaeudesystemtechnik.png

972 ms

gebaeudesystemtechnik-h400-ar.jpg

gebaeudesystemtechnik-h400-ar.jpg

981 ms

ln_icon_metalltechnik.png

ln_icon_metalltechnik.png

1013 ms

maschinensystemtechnik-h400-ar.jpg

maschinensystemtechnik-h400-ar.jpg

1022 ms

ln_icon_laborsysteme.png

ln_icon_laborsysteme.png

1023 ms

labortechnik_sybalab-h400-ar.jpg

labortechnik_sybalab-h400-ar.jpg

1008 ms

ln.ttf

ln.ttf

877 ms

labsoft-teaser-bg.jpg

labsoft-teaser-bg.jpg

797 ms

lrn.css

lrn.css

628 ms

normalize.min.css

normalize.min.css

637 ms

2023-official-partner-logo.jpg

2023-official-partner-logo.jpg

147 ms

socialmedia.jpeg

socialmedia.jpeg

146 ms

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-regular.woff

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-regular.woff

188 ms

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-700.woff

noto-sans-v9-vietnamese_latin-ext_latin_greek-ext_greek_devanagari_cyrillic-ext_cyrillic-700.woff

205 ms

8grid.svg

8grid.svg

94 ms

print.css

print.css

94 ms

Accessibility Review

lucas-nuelle.pl accessibility score

63

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

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

High

[aria-*] attributes do not have valid values

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

Form elements do not have associated labels

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.

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

lucas-nuelle.pl 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

lucas-nuelle.pl SEO score

89

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

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

lucas-nuelle.pl

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