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cda-verlag.com screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

cda-verlag.com

Start | Medienhaus für Technologie & Nachhaltigkeit CDA Verlag GmbH

Page Load Speed

2.3 sec in total

First Response

74 ms

Resources Loaded

2.1 sec

Page Rendered

58 ms

cda-verlag.com screenshot

About Website

Welcome to cda-verlag.com homepage info - get ready to check CDA Verlag best content for Germany right away, or after learning these important things about cda-verlag.com

Die CDA Verlag GmbH ist ein im gesamten DACH-Raum seit mehr als 25 Jahren renommiertes Medienhaus mit Fokus auf Technologie und Nachhaltigkeit. Die Testsiegel des Verlages schaffen Vertrauen im Markt ...

Visit cda-verlag.com

Key Findings

We analyzed Cda-verlag.com page load time and found that the first response time was 74 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

cda-verlag.com performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

62/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value1,230 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

www.cda-verlag.com

74 ms

minified.js

52 ms

focus-within-polyfill.js

51 ms

polyfill.min.js

1080 ms

thunderbolt-commons.7998af0e.bundle.min.js

80 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Cda-verlag.com, 35% (17 requests) were made to Static.wixstatic.com and 33% (16 requests) were made to Static.parastorage.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Polyfill-fastly.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 569.6 kB (55%)

Content Size

1.0 MB

After Optimization

472.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cda-verlag.com main page is 1.0 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. 45% of websites need less resources to load. HTML takes 684.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 545.3 kB

  • Original 684.5 kB
  • After minification 682.8 kB
  • After compression 139.2 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 545.3 kB or 80% of the original size.

Image Optimization

-19%

Potential reduce by 20.7 kB

  • Original 106.5 kB
  • After minification 85.7 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, CDA Verlag needs image optimization as it can save up to 20.7 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

-1%

Potential reduce by 3.6 kB

  • Original 250.8 kB
  • After minification 250.8 kB
  • After compression 247.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 11 (33%)

Requests Now

33

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CDA Verlag. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.cda-verlag.com

www.cda-verlag.com

74 ms

minified.js

minified.js

52 ms

focus-within-polyfill.js

focus-within-polyfill.js

51 ms

polyfill.min.js

polyfill.min.js

1080 ms

thunderbolt-commons.7998af0e.bundle.min.js

thunderbolt-commons.7998af0e.bundle.min.js

80 ms

main.4646567a.bundle.min.js

main.4646567a.bundle.min.js

82 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

78 ms

lodash.min.js

lodash.min.js

81 ms

react.production.min.js

react.production.min.js

79 ms

react-dom.production.min.js

react-dom.production.min.js

81 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

81 ms

wix-perf-measure.umd.min.js

wix-perf-measure.umd.min.js

81 ms

cdaverlag_white.png

cdaverlag_white.png

195 ms

9aa6d4_76ae3ba9cd6c45f89d8e7beedcba18cd~mv2.png

9aa6d4_76ae3ba9cd6c45f89d8e7beedcba18cd~mv2.png

316 ms

cdaverlag_white.png

cdaverlag_white.png

316 ms

9aa6d4_3ab25cc61f504fcb91b23889d20fcd84~mv2.png

9aa6d4_3ab25cc61f504fcb91b23889d20fcd84~mv2.png

194 ms

9aa6d4_c950224323a54a9091701e5bf1eab531~mv2.jpg

9aa6d4_c950224323a54a9091701e5bf1eab531~mv2.jpg

196 ms

9aa6d4_6a8de834d9a54c88bda9d9738a6d6a71~mv2.jpg

9aa6d4_6a8de834d9a54c88bda9d9738a6d6a71~mv2.jpg

386 ms

9aa6d4_769e9e083cad4a62873a0e6893bcb671~mv2.jpg

9aa6d4_769e9e083cad4a62873a0e6893bcb671~mv2.jpg

382 ms

ideestart.png

ideestart.png

194 ms

Redakteur.png

Redakteur.png

306 ms

zielgruppe.png

zielgruppe.png

314 ms

pokal.png

pokal.png

323 ms

doro_sandra.jpg

doro_sandra.jpg

520 ms

Doro%20-%20Logo%20Kopie.png

Doro%20-%20Logo%20Kopie.png

334 ms

head_Dietmar.jpg

head_Dietmar.jpg

327 ms

NRGkick_Logo_ohne_Schatten_mit_DiniTech_Horizontal_Dunkel_01_1200px.png

NRGkick_Logo_ohne_Schatten_mit_DiniTech_Horizontal_Dunkel_01_1200px.png

453 ms

head_A1.png

head_A1.png

586 ms

A1%20rechteckig.jpg

A1%20rechteckig.jpg

509 ms

bundle.min.js

bundle.min.js

79 ms

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

908c4810-64db-4b46-bb8e-823eb41f68c0.woff

72 ms

AvenirLTW05-35Light.woff

AvenirLTW05-35Light.woff

71 ms

61bd362e-7162-46bd-b67e-28f366c4afbe.woff

61bd362e-7162-46bd-b67e-28f366c4afbe.woff

71 ms

145 ms

148 ms

145 ms

136 ms

134 ms

137 ms

170 ms

170 ms

169 ms

162 ms

158 ms

158 ms

deprecation-de.v5.html

deprecation-de.v5.html

4 ms

bolt-performance

bolt-performance

20 ms

deprecation-style.v5.css

deprecation-style.v5.css

6 ms

right-arrow.svg

right-arrow.svg

7 ms

Accessibility Review

cda-verlag.com accessibility score

94

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

cda-verlag.com best practices score

92

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

Page has valid source maps

SEO Factors

cda-verlag.com SEO score

98

Search Engine Optimization Advices

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

cda-verlag.com

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