Tools & Wizards About Us
aarsleff.dk screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

aarsleff.dk

Per Aarsleff A/S - Infrastruktur og byggeri til moderne samfund

Page Load Speed

4.4 sec in total

First Response

321 ms

Resources Loaded

3.9 sec

Page Rendered

110 ms

aarsleff.dk screenshot

About Website

Visit aarsleff.dk now to see the best up-to-date Aarsleff content for Denmark and also check out these interesting facts you probably never knew about aarsleff.dk

Fokus på udvikling, løsninger og gode idéer. Vi vil finde de bedste løsninger og styrer gerne samarbejdet fra design og projektering til udførelse og aflevering. Vi leverer infrastruktur og byggeri af...

Visit aarsleff.dk

Key Findings

We analyzed Aarsleff.dk page load time and found that the first response time was 321 ms and then it took 4 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

aarsleff.dk performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value440 ms

63/100

30%

CLS (Cumulative Layout Shift)

Value0.462

19/100

15%

TTI (Time to Interactive)

Value11.4 s

19/100

10%

Network Requests Diagram

aarsleff.dk

321 ms

www.aarsleff.dk

865 ms

cssreset-min.css

575 ms

stylesheet-new.css

95 ms

uc.js

114 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 74% of them (25 requests) were addressed to the original Aarsleff.dk, 9% (3 requests) were made to Yui.customizer.cadesignform.dk and 3% (1 request) were made to Policy.app.cookieinformation.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Aarsleff.dk.

Page Optimization Overview & Recommendations

Page size can be reduced by 95.9 kB (2%)

Content Size

6.2 MB

After Optimization

6.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Aarsleff.dk main page is 6.2 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. 35% of websites need less resources to load. Images take 5.9 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 72.0 kB

  • Original 83.7 kB
  • After minification 78.7 kB
  • After compression 11.7 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 72.0 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 9.7 kB

  • Original 5.9 MB
  • After minification 5.9 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. Aarsleff images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 12.5 kB

  • Original 204.1 kB
  • After minification 204.1 kB
  • After compression 191.6 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

-18%

Potential reduce by 1.7 kB

  • Original 9.7 kB
  • After minification 9.7 kB
  • After compression 8.0 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. Aarsleff.dk needs all CSS files to be minified and compressed as it can save up to 1.7 kB or 18% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (33%)

Requests Now

30

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Aarsleff. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

aarsleff.dk

aarsleff.dk

321 ms

www.aarsleff.dk

www.aarsleff.dk

865 ms

cssreset-min.css

cssreset-min.css

575 ms

stylesheet-new.css

stylesheet-new.css

95 ms

uc.js

uc.js

114 ms

yui-min.js

yui-min.js

665 ms

aarsleff-ui.js

aarsleff-ui.js

187 ms

FittingImageSlide.js

FittingImageSlide.js

279 ms

slideImages.js

slideImages.js

372 ms

js

js

50 ms

aarsleff-base.js

aarsleff-base.js

383 ms

stylesheet-print.css

stylesheet-print.css

94 ms

combo

combo

191 ms

combo

combo

288 ms

logo.svg

logo.svg

98 ms

linkedinIcon.png

linkedinIcon.png

97 ms

excavator-bucket.svg

excavator-bucket.svg

95 ms

skagen-havn-1

skagen-havn-1

378 ms

forside-top-kasse-midt

forside-top-kasse-midt

1150 ms

baeredygtigt_byggeri

baeredygtigt_byggeri

268 ms

forside-top-kasse-h%C3%B8jre

forside-top-kasse-h%C3%B8jre

673 ms

forside-lighthouse

forside-lighthouse

1641 ms

logo-inverted.svg

logo-inverted.svg

360 ms

oc-animationer_menuspot

oc-animationer_menuspot

488 ms

961192747

961192747

257 ms

excavator-stick.svg

excavator-stick.svg

390 ms

b_ruston47_1.5_bold-webfont.woff

b_ruston47_1.5_bold-webfont.woff

408 ms

index.js

index.js

97 ms

baeredygtigt_byggeri

baeredygtigt_byggeri

323 ms

api.js

api.js

14 ms

skagen-havn-1

skagen-havn-1

283 ms

forside-top-kasse-h%C3%B8jre

forside-top-kasse-h%C3%B8jre

282 ms

forside-top-kasse-midt

forside-top-kasse-midt

190 ms

forside-lighthouse

forside-lighthouse

379 ms

Accessibility Review

aarsleff.dk accessibility score

72

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

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

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

aarsleff.dk 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

User Experience

Impact

Issue

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

SEO Factors

aarsleff.dk SEO score

92

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

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

    DA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aarsleff.dk can be misinterpreted by Google and other search engines. Our service has detected that Danish 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 Aarsleff.dk 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

aarsleff.dk

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