Tools & Wizards About Us
differdange.lu screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

differdange.lu

Site officiel de la Ville de Differdange

Page Load Speed

4.2 sec in total

First Response

303 ms

Resources Loaded

3.3 sec

Page Rendered

595 ms

differdange.lu screenshot

About Website

Visit differdange.lu now to see the best up-to-date Differdange content for Luxembourg and also check out these interesting facts you probably never knew about differdange.lu

Retrouvez toutes les informations pratiques, les services et démarches, les actualités et événements de la Ville de Differdange.

Visit differdange.lu

Key Findings

We analyzed Differdange.lu page load time and found that the first response time was 303 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

differdange.lu performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

Network Requests Diagram

differdange.lu

303 ms

differdange.lu

1070 ms

css

32 ms

main.css

195 ms

responsive.css

286 ms

Our browser made a total of 109 requests to load all elements on the main page. We found that 83% of them (91 requests) were addressed to the original Differdange.lu, 5% (5 requests) were made to Fonts.gstatic.com and 2% (2 requests) were made to Static.elfsight.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Differdange.lu.

Page Optimization Overview & Recommendations

Page size can be reduced by 146.8 kB (4%)

Content Size

3.3 MB

After Optimization

3.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Differdange.lu main page is 3.3 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 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 116.7 kB

  • Original 141.0 kB
  • After minification 135.6 kB
  • After compression 24.3 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 116.7 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 17.7 kB

  • Original 2.5 MB
  • After minification 2.5 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. Differdange images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 10.1 kB

  • Original 617.1 kB
  • After minification 617.1 kB
  • After compression 606.9 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

-2%

Potential reduce by 2.3 kB

  • Original 106.0 kB
  • After minification 106.0 kB
  • After compression 103.7 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. Differdange.lu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 59 (58%)

Requests Now

101

After Optimization

42

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Differdange. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 46 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

differdange.lu

differdange.lu

303 ms

differdange.lu

differdange.lu

1070 ms

css

css

32 ms

main.css

main.css

195 ms

responsive.css

responsive.css

286 ms

style.min.css

style.min.css

381 ms

styles.css

styles.css

290 ms

events-manager.min.css

events-manager.min.css

481 ms

events-manager-pro.css

events-manager-pro.css

294 ms

style.css

style.css

385 ms

jquery-ui.css

jquery-ui.css

18 ms

jquery.min.js

jquery.min.js

479 ms

jquery-migrate.min.js

jquery-migrate.min.js

385 ms

functions.js

functions.js

389 ms

nfpluginsettings.js

nfpluginsettings.js

476 ms

nfpluginsettings.js

nfpluginsettings.js

477 ms

core.min.js

core.min.js

479 ms

mouse.min.js

mouse.min.js

507 ms

sortable.min.js

sortable.min.js

573 ms

datepicker.min.js

datepicker.min.js

576 ms

resizable.min.js

resizable.min.js

575 ms

draggable.min.js

draggable.min.js

580 ms

controlgroup.min.js

controlgroup.min.js

579 ms

checkboxradio.min.js

checkboxradio.min.js

582 ms

button.min.js

button.min.js

670 ms

dialog.min.js

dialog.min.js

670 ms

events-manager.min.js

events-manager.min.js

863 ms

fr.min.js

fr.min.js

672 ms

events-manager-pro.js

events-manager-pro.js

674 ms

platform.js

platform.js

31 ms

index.js

index.js

594 ms

index.js

index.js

680 ms

control.js

control.js

680 ms

jquery.auto-complete.min.js

jquery.auto-complete.min.js

25 ms

validate.js

validate.js

684 ms

api.js

api.js

41 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

685 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

689 ms

wp-polyfill.min.js

wp-polyfill.min.js

879 ms

index.js

index.js

803 ms

ml-widget.js

ml-widget.js

460 ms

tweenmax.js

tweenmax.js

805 ms

magnific.js

magnific.js

803 ms

platform.js

platform.js

34 ms

fracs.js

fracs.js

698 ms

swiper.js

swiper.js

712 ms

gtm.js

gtm.js

44 ms

isotope.js

isotope.js

706 ms

hoverIntent.js

hoverIntent.js

716 ms

sorTable.min.js

sorTable.min.js

714 ms

main.js

main.js

628 ms

languagecourses.js

languagecourses.js

698 ms

attentionbanner.js

attentionbanner.js

705 ms

changefontsize.js

changefontsize.js

704 ms

patchNinjaForm.js

patchNinjaForm.js

617 ms

appstore.svg

appstore.svg

270 ms

gplay.svg

gplay.svg

268 ms

binsfeld.svg

binsfeld.svg

287 ms

logo.svg

logo.svg

269 ms

bgtop.jpg

bgtop.jpg

465 ms

search.svg

search.svg

276 ms

icon-bike.svg

icon-bike.svg

316 ms

icon-bus.svg

icon-bus.svg

315 ms

icon-interview.svg

icon-interview.svg

363 ms

icon-student.svg

icon-student.svg

365 ms

icon-family.svg

icon-family.svg

372 ms

icon-livingroom.svg

icon-livingroom.svg

412 ms

BluesExpress2023-min-1024x683.jpg

BluesExpress2023-min-1024x683.jpg

600 ms

fb-cafe-des-langues-1024x576.jpg

fb-cafe-des-langues-1024x576.jpg

552 ms

inondations-1024x678.webp

inondations-1024x678.webp

462 ms

20240611_cours-des-langues-2-683x1024.jpg

20240611_cours-des-langues-2-683x1024.jpg

657 ms

steel-run-1024x683.jpg

steel-run-1024x683.jpg

698 ms

20220215_salle-seance-4-1024x683.jpg

20220215_salle-seance-4-1024x683.jpg

654 ms

arrow-left.svg

arrow-left.svg

560 ms

arrow-right.svg

arrow-right.svg

653 ms

Konscht-am-Minett-2024-528x388.jpg

Konscht-am-Minett-2024-528x388.jpg

656 ms

icon-marker.svg

icon-marker.svg

696 ms

icon-euro.svg

icon-euro.svg

744 ms

33_190707-Sports-plein-air-8-528x388.jpg

33_190707-Sports-plein-air-8-528x388.jpg

748 ms

repair-jeshoots-com-VdOO4_HFTWM-unsplash-528x388.jpg

repair-jeshoots-com-VdOO4_HFTWM-unsplash-528x388.jpg

755 ms

bitzen-scaled.jpg

bitzen-scaled.jpg

755 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDFwmdTQ3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDFwmdTQ3ig.ttf

56 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDBImdTQ3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDBImdTQ3ig.ttf

71 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDGUmdTQ3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDGUmdTQ3ig.ttf

124 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDLshdTQ3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDLshdTQ3ig.ttf

125 ms

XRXI3I6Li01BKofiOc5wtlZ2di8HDDshdTQ3ig.ttf

XRXI3I6Li01BKofiOc5wtlZ2di8HDDshdTQ3ig.ttf

125 ms

container_w2WgryRg.js

container_w2WgryRg.js

567 ms

recaptcha__en.js

recaptcha__en.js

66 ms

Michel_Jonasz-scaled.jpg

Michel_Jonasz-scaled.jpg

789 ms

Summer-Austellung-Photoclub-528x388.png

Summer-Austellung-Photoclub-528x388.png

695 ms

MTB-Train-1900-528x388.jpg

MTB-Train-1900-528x388.jpg

833 ms

diffmag-1024x683.jpg

diffmag-1024x683.jpg

922 ms

icon-association.svg

icon-association.svg

740 ms

icon-house.svg

icon-house.svg

738 ms

icon-commerce.svg

icon-commerce.svg

695 ms

icon-pro.svg

icon-pro.svg

753 ms

icon-tourism.svg

icon-tourism.svg

721 ms

119 ms

icon-elder.svg

icon-elder.svg

746 ms

diffapp-copy-1024x797.jpg

diffapp-copy-1024x797.jpg

745 ms

icon-phone.svg

icon-phone.svg

784 ms

icon-facebook.svg

icon-facebook.svg

784 ms

icon-instagram.svg

icon-instagram.svg

783 ms

icon-youtube.svg

icon-youtube.svg

813 ms

icon-tiktok.svg

icon-tiktok.svg

775 ms

icon-linkedin.svg

icon-linkedin.svg

814 ms

instashow.js

instashow.js

16 ms

icon-hoplr.svg

icon-hoplr.svg

771 ms

matomo.php

matomo.php

424 ms

Accessibility Review

differdange.lu accessibility score

88

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

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

differdange.lu 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

Page has valid source maps

SEO Factors

differdange.lu SEO score

90

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

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

    FR

  • Language Claimed

    FR

  • Encoding

    UTF-8

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

differdange.lu

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