Tools & Wizards About Us
elektronik-kompendium.de screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

elektronik-kompendium.de

Elektronik-Kompendium.de - Elektronik einfach und leicht verständlich

Page Load Speed

2.5 sec in total

First Response

248 ms

Resources Loaded

1.8 sec

Page Rendered

469 ms

elektronik-kompendium.de screenshot

About Website

Welcome to elektronik-kompendium.de homepage info - get ready to check Elektronik Kompendium best content for Germany right away, or after learning these important things about elektronik-kompendium.de

Elektronik, Computertechnik, Kommunikationstechnik und Netzwerktechnik einfach und leicht verständlich erklärt.

Visit elektronik-kompendium.de

Key Findings

We analyzed Elektronik-kompendium.de page load time and found that the first response time was 248 ms and then it took 2.3 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

elektronik-kompendium.de performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

elektronik-kompendium.de

248 ms

www.elektronik-kompendium.de

492 ms

style.css

212 ms

jquery.min.js

455 ms

bootstrap.min.js

317 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that all of those requests were addressed to Elektronik-kompendium.de and no external sources were called. The less responsive or slowest element that took the longest time to load (743 ms) belongs to the original domain Elektronik-kompendium.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 45.7 kB (12%)

Content Size

391.0 kB

After Optimization

345.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Elektronik-kompendium.de main page is 391.0 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 273.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.1 kB

  • Original 31.4 kB
  • After minification 31.0 kB
  • After compression 7.2 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 24.1 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 5.9 kB

  • Original 273.9 kB
  • After minification 268.0 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. Elektronik Kompendium images are well optimized though.

JavaScript Optimization

-15%

Potential reduce by 7.6 kB

  • Original 51.1 kB
  • After minification 51.1 kB
  • After compression 43.5 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 7.6 kB or 15% of the original size.

CSS Optimization

-23%

Potential reduce by 7.9 kB

  • Original 34.6 kB
  • After minification 34.6 kB
  • After compression 26.6 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. Elektronik-kompendium.de needs all CSS files to be minified and compressed as it can save up to 7.9 kB or 23% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

20

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 20 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elektronik Kompendium. According to our analytics all requests are already optimized.

Network Requests Diagram

elektronik-kompendium.de

elektronik-kompendium.de

248 ms

www.elektronik-kompendium.de

www.elektronik-kompendium.de

492 ms

style.css

style.css

212 ms

jquery.min.js

jquery.min.js

455 ms

bootstrap.min.js

bootstrap.min.js

317 ms

logo.png

logo.png

105 ms

buch-efibel-300.jpg

buch-efibel-300.jpg

250 ms

buch-cfibel-300.jpg

buch-cfibel-300.jpg

244 ms

buch-nfibel-300.jpg

buch-nfibel-300.jpg

303 ms

buch-kfibel-300.jpg

buch-kfibel-300.jpg

446 ms

collection-crashkurs-it-150.jpg

collection-crashkurs-it-150.jpg

316 ms

collection-trends-it-150.jpg

collection-trends-it-150.jpg

325 ms

collection-iot-150.jpg

collection-iot-150.jpg

351 ms

collection-mobil-150.jpg

collection-mobil-150.jpg

362 ms

set-starter-edition-300.jpg

set-starter-edition-300.jpg

446 ms

set-advanced-edition-300.jpg

set-advanced-edition-300.jpg

532 ms

set-basic-edition-300.jpg

set-basic-edition-300.jpg

470 ms

set-mein-projekt-300.jpg

set-mein-projekt-300.jpg

475 ms

set-pico-edition-150.jpg

set-pico-edition-150.jpg

489 ms

set-pico-wlan-edition-150.jpg

set-pico-wlan-edition-150.jpg

566 ms

event-picobello-150.jpg

event-picobello-150.jpg

576 ms

event-picotalk-150.png

event-picotalk-150.png

671 ms

arial.ttf

arial.ttf

700 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

597 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

743 ms

Accessibility Review

elektronik-kompendium.de accessibility score

84

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

elektronik-kompendium.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

elektronik-kompendium.de SEO score

92

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    DE

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Elektronik-kompendium.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), while the claimed language is German. Our system also found out that Elektronik-kompendium.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

elektronik-kompendium.de

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