Tools & Wizards About Us
denox.at screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

denox.at

MAL DeNox Systems GmbH - Specialist for SNCR and SCR Technologies (DENOx)

Page Load Speed

3.1 sec in total

First Response

308 ms

Resources Loaded

2.5 sec

Page Rendered

208 ms

denox.at screenshot

About Website

Welcome to denox.at homepage info - get ready to check De Nox best content right away, or after learning these important things about denox.at

We provide modern Technologies for NOx emission reduction (SNCR & SCR) the field of industrial flue gas cleaning - modern DeNOx technology for a reduction of up to -90% of NOx emissions.

Visit denox.at

Key Findings

We analyzed Denox.at page load time and found that the first response time was 308 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

denox.at performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value16.7 s

0/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value31.6 s

0/100

10%

Network Requests Diagram

www.denox.at

308 ms

home

457 ms

magnific-popup.css

214 ms

font-awesome.min.css

328 ms

video-js.css

22 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 62% of them (21 requests) were addressed to the original Denox.at, 9% (3 requests) were made to Vjs.zencdn.net and 9% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (994 ms) belongs to the original domain Denox.at.

Page Optimization Overview & Recommendations

Page size can be reduced by 370.4 kB (3%)

Content Size

12.4 MB

After Optimization

12.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Denox.at main page is 12.4 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. 55% of websites need less resources to load. Images take 12.1 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 37.8 kB

  • Original 47.1 kB
  • After minification 43.0 kB
  • After compression 9.3 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 37.8 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 159.8 kB

  • Original 12.1 MB
  • After minification 11.9 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. De Nox images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 131.4 kB

  • Original 226.3 kB
  • After minification 177.3 kB
  • After compression 94.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 131.4 kB or 58% of the original size.

CSS Optimization

-78%

Potential reduce by 41.5 kB

  • Original 53.0 kB
  • After minification 46.2 kB
  • After compression 11.6 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. Denox.at needs all CSS files to be minified and compressed as it can save up to 41.5 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (60%)

Requests Now

30

After Optimization

12

  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Nox. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.denox.at

www.denox.at

308 ms

home

home

457 ms

magnific-popup.css

magnific-popup.css

214 ms

font-awesome.min.css

font-awesome.min.css

328 ms

video-js.css

video-js.css

22 ms

slick.css

slick.css

233 ms

components.css

components.css

231 ms

components-mobile.css

components-mobile.css

223 ms

css

css

40 ms

css

css

57 ms

css

css

67 ms

bootstrap.min.css

bootstrap.min.css

42 ms

jquery.min.js

jquery.min.js

31 ms

bootstrap.min.js

bootstrap.min.js

53 ms

feather.min.js

feather.min.js

52 ms

slick.js

slick.js

442 ms

videojs-ie8.min.js

videojs-ie8.min.js

22 ms

ScriptResource.axd

ScriptResource.axd

416 ms

jquery.magnific-popup.js

jquery.magnific-popup.js

365 ms

core.js

core.js

251 ms

video.js

video.js

10 ms

js

js

57 ms

logo2new.png

logo2new.png

210 ms

blank.png

blank.png

118 ms

sky.jpg

sky.jpg

474 ms

Kraftwerk.jpg

Kraftwerk.jpg

766 ms

bio-mass-biolers.jpg

bio-mass-biolers.jpg

567 ms

Zement_02.jpg

Zement_02.jpg

981 ms

3.1.jpg

3.1.jpg

818 ms

steel-mill-616536.jpg

steel-mill-616536.jpg

705 ms

gass-turbine.jpg

gass-turbine.jpg

994 ms

Muell.jpg

Muell.jpg

781 ms

I_uuMpWdvgLdNxVLXbNalg.ttf

I_uuMpWdvgLdNxVLXbNalg.ttf

86 ms

I_urMpWdvgLdNxVLVRh4hi-Oqw.ttf

I_urMpWdvgLdNxVLVRh4hi-Oqw.ttf

114 ms

Accessibility Review

denox.at accessibility score

76

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

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

Best Practices

denox.at best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

denox.at SEO score

85

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

denox.at

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