Tools & Wizards About Us
dunco.de screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

dunco.de

Dunco

Page Load Speed

2.2 sec in total

First Response

381 ms

Resources Loaded

1.7 sec

Page Rendered

201 ms

dunco.de screenshot

About Website

Click here to check amazing Dunco content. Otherwise, check out these important facts you probably never knew about dunco.de

Visit dunco.de

Key Findings

We analyzed Dunco.de page load time and found that the first response time was 381 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

dunco.de performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value5.6 s

54/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

Network Requests Diagram

dunco.de

381 ms

bootstrap.css

623 ms

animate.css

393 ms

bootstrap-responsive.css

303 ms

b-custom.css

207 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 70% of them (14 requests) were addressed to the original Dunco.de, 15% (3 requests) were made to Fonts.gstatic.com and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (627 ms) belongs to the original domain Dunco.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 347.0 kB (47%)

Content Size

732.7 kB

After Optimization

385.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dunco.de main page is 732.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 329.3 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 1.5 kB

  • Original 2.4 kB
  • After minification 2.1 kB
  • After compression 873 B

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 323 B, which is 13% 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 1.5 kB or 64% of the original size.

Image Optimization

-10%

Potential reduce by 33.2 kB

  • Original 329.3 kB
  • After minification 296.1 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. Dunco images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 112.7 kB

  • Original 174.1 kB
  • After minification 174.1 kB
  • After compression 61.3 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 112.7 kB or 65% of the original size.

CSS Optimization

-88%

Potential reduce by 199.6 kB

  • Original 226.9 kB
  • After minification 178.8 kB
  • After compression 27.3 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. Dunco.de needs all CSS files to be minified and compressed as it can save up to 199.6 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (31%)

Requests Now

16

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dunco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dunco.de

dunco.de

381 ms

bootstrap.css

bootstrap.css

623 ms

animate.css

animate.css

393 ms

bootstrap-responsive.css

bootstrap-responsive.css

303 ms

b-custom.css

b-custom.css

207 ms

custom-responsive.css

custom-responsive.css

210 ms

css

css

25 ms

jquery.js

jquery.js

532 ms

bootstrap.min.js

bootstrap.min.js

410 ms

analytics.js

analytics.js

17 ms

noisy-texture-100x100-o5-d10-c-000000-t0.png

noisy-texture-100x100-o5-d10-c-000000-t0.png

107 ms

apperatebau-logo.png

apperatebau-logo.png

130 ms

apperatebau.png

apperatebau.png

627 ms

noisy-texture-100x100-o5-d10-c-ffffff-t0.png

noisy-texture-100x100-o5-d10-c-ffffff-t0.png

104 ms

pruefservice-logo.png

pruefservice-logo.png

101 ms

pruefservice.png

pruefservice.png

422 ms

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf

12 ms

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf

12 ms

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf

12 ms

collect

collect

12 ms

Accessibility Review

dunco.de accessibility score

71

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.

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

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

Image elements do not have [alt] attributes

Best Practices

dunco.de best practices score

50

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

dunco.de SEO score

83

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dunco.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Dunco.de 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

dunco.de

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