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referenz.cornelsen.de screenshot

Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

referenz.cornelsen.de

Cornelsen Verlag : Schulbücher Unterrichtsmaterialien Lernhilfen Bildung

Page Load Speed

6.6 sec in total

First Response

650 ms

Resources Loaded

5.6 sec

Page Rendered

384 ms

referenz.cornelsen.de screenshot

About Website

Click here to check amazing Referenz Cornelsen content for Germany. Otherwise, check out these important facts you probably never knew about referenz.cornelsen.de

Der Cornelsen Verlag bietet Bildungsmedien wie Schulbücher, Arbeitshefte, Downloads und Materialien für den Unterricht sowie Software für Lernende...

Visit referenz.cornelsen.de

Key Findings

We analyzed Referenz.cornelsen.de page load time and found that the first response time was 650 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

referenz.cornelsen.de performance score

0

Network Requests Diagram

referenz.cornelsen.de

650 ms

1584 ms

f62e24603b1c4137c428a6305d0f9715.js

538 ms

a268308b333de1657d98874135375c03.js

1089 ms

d1a2d82c9f34719786185ba3c436c767.js

346 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 95% of them (73 requests) were addressed to the original Referenz.cornelsen.de, 1% (1 request) were made to Googleadservices.com and 1% (1 request) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Referenz.cornelsen.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 825.5 kB (47%)

Content Size

1.7 MB

After Optimization

912.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Referenz.cornelsen.de main page is 1.7 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. 25% of websites need less resources to load. Images take 734.7 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 72.8 kB

  • Original 85.8 kB
  • After minification 66.8 kB
  • After compression 13.0 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 19.0 kB, which is 22% 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 72.8 kB or 85% of the original size.

Image Optimization

-8%

Potential reduce by 57.3 kB

  • Original 734.7 kB
  • After minification 677.4 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. Referenz Cornelsen images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 527.4 kB

  • Original 716.1 kB
  • After minification 630.7 kB
  • After compression 188.7 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 527.4 kB or 74% of the original size.

CSS Optimization

-83%

Potential reduce by 168.1 kB

  • Original 201.5 kB
  • After minification 181.5 kB
  • After compression 33.4 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. Referenz.cornelsen.de needs all CSS files to be minified and compressed as it can save up to 168.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (45%)

Requests Now

74

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Referenz Cornelsen. 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

referenz.cornelsen.de

referenz.cornelsen.de

650 ms

1584 ms

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f62e24603b1c4137c428a6305d0f9715.js

538 ms

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a268308b333de1657d98874135375c03.js

1089 ms

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d1a2d82c9f34719786185ba3c436c767.js

346 ms

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3a4bae3b1ec7cbf1e2dc1773a844fae6.js

351 ms

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704 ms

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354 ms

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696 ms

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715 ms

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552 ms

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719 ms

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725 ms

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877 ms

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884 ms

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1178 ms

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907 ms

ECPConnector.js

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1121 ms

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1055 ms

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1243 ms

custom.js

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1344 ms

conversion.js

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17 ms

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172 ms

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345 ms

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178 ms

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173 ms

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180 ms

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178 ms

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342 ms

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342 ms

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349 ms

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347 ms

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345 ms

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685 ms

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523 ms

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686 ms

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525 ms

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532 ms

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530 ms

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698 ms

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857 ms

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881 ms

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1034 ms

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1051 ms

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1059 ms

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1947 ms

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1263 ms

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1237 ms

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1240 ms

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1615 ms

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1121 ms

SEO Factors

referenz.cornelsen.de SEO score

0

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Referenz.cornelsen.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Referenz.cornelsen.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

referenz.cornelsen.de

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