Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

dtu.dk

Danmarks Tekniske Universitet - DTU

Page Load Speed

6.4 sec in total

First Response

465 ms

Resources Loaded

5.7 sec

Page Rendered

217 ms

dtu.dk screenshot

About Website

Welcome to dtu.dk homepage info - get ready to check DTU best content for Denmark right away, or after learning these important things about dtu.dk

DTU er et teknisk eliteuniversitet med international rækkevidde og standard. Vores mission er at udvikle og nyttiggøre naturvidenskab og teknisk videnskab til gavn for samfundet.

Visit dtu.dk

Key Findings

We analyzed Dtu.dk page load time and found that the first response time was 465 ms and then it took 5.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

dtu.dk performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value14.1 s

1/100

10%

TBT (Total Blocking Time)

Value440 ms

64/100

30%

CLS (Cumulative Layout Shift)

Value0.144

78/100

15%

TTI (Time to Interactive)

Value13.9 s

10/100

10%

Network Requests Diagram

dtu.dk

465 ms

www.dtu.dk

1295 ms

init_alldevices.min.css

324 ms

adapt.config.js

329 ms

adapt.min.js

330 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 74% of them (67 requests) were addressed to the original Dtu.dk, 17% (15 requests) were made to I.ytimg.com and 2% (2 requests) were made to Track.adform.net. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Dtu.dk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (59%)

Content Size

2.1 MB

After Optimization

868.0 kB

In fact, the total size of Dtu.dk main page is 2.1 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. 50% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 152.4 kB

  • Original 183.8 kB
  • After minification 164.4 kB
  • After compression 31.5 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 19.4 kB, which is 11% 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 152.4 kB or 83% of the original size.

Image Optimization

-20%

Potential reduce by 120.1 kB

  • Original 605.1 kB
  • After minification 485.0 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. Obviously, DTU needs image optimization as it can save up to 120.1 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 753.0 kB

  • Original 1.0 MB
  • After minification 952.3 kB
  • After compression 280.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 753.0 kB or 73% of the original size.

CSS Optimization

-75%

Potential reduce by 218.8 kB

  • Original 289.8 kB
  • After minification 289.8 kB
  • After compression 71.0 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. Dtu.dk needs all CSS files to be minified and compressed as it can save up to 218.8 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (44%)

Requests Now

87

After Optimization

49

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of DTU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

dtu.dk accessibility score

96

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

dtu.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

dtu.dk SEO score

71

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    DA

  • Language Claimed

    DA

  • Encoding

    UTF-8

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

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