Tools & Wizards About Us

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

duerr-technik.eu

Oil-free compressors from DÜRR TECHNIK - Oilfree compressors by Dürr Technik

Page Load Speed

4.6 sec in total

First Response

575 ms

Resources Loaded

3.5 sec

Page Rendered

579 ms

About Website

Welcome to duerr-technik.eu homepage info - get ready to check Duerr TECHNIK best content right away, or after learning these important things about duerr-technik.eu

DÜRR TECHNIK offers you a wide range of compressed air compressors for use in laboratories, production or rail transport.

Visit duerr-technik.eu

Key Findings

We analyzed Duerr-technik.eu page load time and found that the first response time was 575 ms and then it took 4.1 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

duerr-technik.eu performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value8.2 s

20/100

10%

TBT (Total Blocking Time)

Value1,120 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.139

79/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

duerr-technik.eu

575 ms

duerr-technik.eu

690 ms

home_en.html

462 ms

modernizr.js

297 ms

jquery.mCustomScrollbar.min.css,responsive-tables.css,all.css,io...-230c0dd0.css

523 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 91% of them (58 requests) were addressed to the original Duerr-technik.eu, 3% (2 requests) were made to Unpkg.com and 2% (1 request) were made to Consent.cookiebot.com. The less responsive or slowest element that took the longest time to load (924 ms) belongs to the original domain Duerr-technik.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (45%)

Content Size

2.8 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Duerr-technik.eu main page is 2.8 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 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 65.9 kB

  • Original 78.5 kB
  • After minification 63.2 kB
  • After compression 12.6 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 15.3 kB, which is 20% 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 65.9 kB or 84% of the original size.

Image Optimization

-19%

Potential reduce by 299.9 kB

  • Original 1.6 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. Obviously, Duerr TECHNIK needs image optimization as it can save up to 299.9 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 483.5 kB

  • Original 636.1 kB
  • After minification 556.6 kB
  • After compression 152.7 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 483.5 kB or 76% of the original size.

CSS Optimization

-88%

Potential reduce by 397.9 kB

  • Original 450.9 kB
  • After minification 360.5 kB
  • After compression 53.0 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. Duerr-technik.eu needs all CSS files to be minified and compressed as it can save up to 397.9 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 29 (53%)

Requests Now

55

After Optimization

26

  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duerr TECHNIK. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

duerr-technik.eu accessibility score

81

Accessibility Issues

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

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

High

Heading elements are not in a sequentially-descending order

Best Practices

duerr-technik.eu 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

duerr-technik.eu SEO score

75

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

High

Document doesn't have a valid hreflang

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duerr-technik.eu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Duerr-technik.eu 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 Duerr TECHNIK. 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: