Tools & Wizards About Us
vogella.de screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

vogella.de

Eclipse, Android and Java training and support

Page Load Speed

9.5 sec in total

First Response

446 ms

Resources Loaded

4.9 sec

Page Rendered

4.2 sec

vogella.de screenshot

About Website

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

The vogella GmbH is a German company and provides services ranging from training, consulting and mentoring in the areas of Eclipse, Flutter and Git.

Visit vogella.de

Key Findings

We analyzed Vogella.de page load time and found that the first response time was 446 ms and then it took 9.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

vogella.de performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

62/100

25%

SI (Speed Index)

Value6.4 s

41/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.097

90/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

vogella.de

446 ms

www.vogella.com

850 ms

css

419 ms

css

435 ms

css

434 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Vogella.de, 61% (14 requests) were made to Vogella.com and 13% (3 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Vogella.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 46.6 kB (30%)

Content Size

153.8 kB

After Optimization

107.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vogella.de main page is 153.8 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. 20% of websites need less resources to load. Images take 74.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 13.5 kB

  • Original 17.8 kB
  • After minification 16.0 kB
  • After compression 4.3 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 13.5 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 40 B

  • Original 74.7 kB
  • After minification 74.7 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. Vogella images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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.

CSS Optimization

-75%

Potential reduce by 33.0 kB

  • Original 44.2 kB
  • After minification 44.1 kB
  • After compression 11.2 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. Vogella.de needs all CSS files to be minified and compressed as it can save up to 33.0 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (50%)

Requests Now

18

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vogella. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vogella.de

vogella.de

446 ms

www.vogella.com

www.vogella.com

850 ms

css

css

419 ms

css

css

435 ms

css

css

434 ms

A.navigation.css,,qv==2.0+header.css+companyfooter.css+trainingoffering.css,Mcc.zbcWMeHOV2.css.pagespeed.cf.NhlIuIxLnO.css

A.navigation.css,,qv==2.0+header.css+companyfooter.css+trainingoffering.css,Mcc.zbcWMeHOV2.css.pagespeed.cf.NhlIuIxLnO.css

310 ms

ga.js

ga.js

1096 ms

burger.svg

burger.svg

1095 ms

index_logo.svg

index_logo.svg

1147 ms

xindex_logo.png.pagespeed.ic.MsfY6nLwK9.png

xindex_logo.png.pagespeed.ic.MsfY6nLwK9.png

1120 ms

xsrch.png.pagespeed.ic.BP8TtuQRzJ.png

xsrch.png.pagespeed.ic.BP8TtuQRzJ.png

1067 ms

xlogo_very_rough_darkblue_vogella.png.pagespeed.ic.hRsBqCVF78.png

xlogo_very_rough_darkblue_vogella.png.pagespeed.ic.hRsBqCVF78.png

1292 ms

email_gray.svg

email_gray.svg

1067 ms

call_gray.svg

call_gray.svg

1164 ms

32x32xtwitter_small.png.pagespeed.ic.zUCU7IAJvb.png

32x32xtwitter_small.png.pagespeed.ic.zUCU7IAJvb.png

941 ms

32x32xfacebook_small.png.pagespeed.ic.Nr2jwQhmhQ.png

32x32xfacebook_small.png.pagespeed.ic.Nr2jwQhmhQ.png

940 ms

32x32xlinkedin_small.png.pagespeed.ic.UsWjy4yMQ0.png

32x32xlinkedin_small.png.pagespeed.ic.UsWjy4yMQ0.png

941 ms

32x32xxing_small.png.pagespeed.ic.svLIPwqYUL.png

32x32xxing_small.png.pagespeed.ic.svLIPwqYUL.png

1175 ms

32x32xgithub_small.png.pagespeed.ic.cZ9ygI4rWa.png

32x32xgithub_small.png.pagespeed.ic.cZ9ygI4rWa.png

1022 ms

clhLqOv7MXn459PTh0gXYPCElmnwKDalSnIV02fhbiI.ttf

clhLqOv7MXn459PTh0gXYPCElmnwKDalSnIV02fhbiI.ttf

992 ms

__utm.gif

__utm.gif

307 ms

collect

collect

311 ms

ga-audiences

ga-audiences

168 ms

Accessibility Review

vogella.de accessibility score

98

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.

Best Practices

vogella.de best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vogella.de SEO score

89

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

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 Vogella.de 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 Vogella.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

vogella.de

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