Tools & Wizards About Us

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

dda-online.com

Page Load Speed

4.7 sec in total

First Response

273 ms

Resources Loaded

4.3 sec

Page Rendered

138 ms

About Website

Visit dda-online.com now to see the best up-to-date Dda Online content for Germany and also check out these interesting facts you probably never knew about dda-online.com

dda, die dialog akademie - berufsbegleitende Weiterbildung in Online Marketing, Social Media und Dialogmarketing.

Visit dda-online.com

Key Findings

We analyzed Dda-online.com page load time and found that the first response time was 273 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

dda-online.com performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value3.4 s

67/100

25%

SI (Speed Index)

Value3.2 s

91/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

dda-online.com

273 ms

www.dda-online.de

532 ms

stylesheet_ac0027c409.css

290 ms

default.css

194 ms

jquery.ui.theme.css

289 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Dda-online.com, 88% (52 requests) were made to Dda-online.de and 3% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Dda-online.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 486.2 kB (64%)

Content Size

756.4 kB

After Optimization

270.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dda-online.com main page is 756.4 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. Javascripts take 458.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 27.3 kB

  • Original 34.3 kB
  • After minification 30.7 kB
  • After compression 7.0 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 3.6 kB, which is 11% 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 27.3 kB or 80% of the original size.

Image Optimization

-4%

Potential reduce by 5.2 kB

  • Original 136.4 kB
  • After minification 131.2 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. Dda Online images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 347.6 kB

  • Original 458.6 kB
  • After minification 327.6 kB
  • After compression 111.0 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 347.6 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 106.1 kB

  • Original 127.2 kB
  • After minification 102.9 kB
  • After compression 21.0 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. Dda-online.com needs all CSS files to be minified and compressed as it can save up to 106.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (56%)

Requests Now

57

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dda Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

dda-online.com accessibility score

93

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

Best Practices

dda-online.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

dda-online.com SEO score

100

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dda-online.com 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), while the claimed language is German. Our system also found out that Dda-online.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

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