Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

videnskab.dk

Nyheder om forskning og videnskab

Page Load Speed

9.9 sec in total

First Response

2.9 sec

Resources Loaded

6 sec

Page Rendered

1.1 sec

videnskab.dk screenshot

About Website

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

Videnskab.dk er Danmarks største videnskabsmedie. Vi underholder, overrasker og gør dig klogere med nyheder, podcast og video.

Visit videnskab.dk

Key Findings

We analyzed Videnskab.dk page load time and found that the first response time was 2.9 sec and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

videnskab.dk performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value15.1 s

0/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.178

68/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

Network Requests Diagram

videnskab.dk

2861 ms

css_bfad4e7eff4c4b8e97debd3e97b81270.css

764 ms

js_1850c5ca539f5ebe91bc3b79eb735883.js

942 ms

recent_comments_widget.js

56 ms

plusone.js

88 ms

Our browser made a total of 236 requests to load all elements on the main page. We found that 40% of them (95 requests) were addressed to the original Videnskab.dk, 8% (19 requests) were made to Pbs.twimg.com and 7% (17 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Videnskab.dk.

Page Optimization Overview & Recommendations

Page size can be reduced by 619.7 kB (29%)

Content Size

2.2 MB

After Optimization

1.6 MB

In fact, the total size of Videnskab.dk main page is 2.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 130.7 kB

  • Original 153.1 kB
  • After minification 138.2 kB
  • After compression 22.4 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 130.7 kB or 85% of the original size.

Image Optimization

-5%

Potential reduce by 69.1 kB

  • Original 1.4 MB
  • After minification 1.3 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. Videnskab images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 339.1 kB

  • Original 561.9 kB
  • After minification 517.1 kB
  • After compression 222.8 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 339.1 kB or 60% of the original size.

CSS Optimization

-82%

Potential reduce by 80.8 kB

  • Original 98.4 kB
  • After minification 94.0 kB
  • After compression 17.6 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. Videnskab.dk needs all CSS files to be minified and compressed as it can save up to 80.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 90 (39%)

Requests Now

231

After Optimization

141

The browser has sent 231 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Videnskab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 54 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

videnskab.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

Buttons do not have an accessible name

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

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

Best Practices

videnskab.dk 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

videnskab.dk SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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

    DA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Videnskab.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 Videnskab.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 Videnskab. 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: