Tools & Wizards About Us
stueber.de screenshot

Report Summary

  • 62

    Performance

    Renders faster than
    76% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

stueber.de

STÜBER SYSTEMS | Education Management, Digital Signage, Wireless Presentation

Page Load Speed

5.4 sec in total

First Response

361 ms

Resources Loaded

4.9 sec

Page Rendered

160 ms

stueber.de screenshot

About Website

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

STÜBER SYSTEMS entwickelt und vertreibt Software für die Bereiche Education Management und Digital Signage. Komplettiert wird unser Portfolio durch spezialisierte Hardware-Lösungen im Bereich Digital ...

Visit stueber.de

Key Findings

We analyzed Stueber.de page load time and found that the first response time was 361 ms and then it took 5.1 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

stueber.de performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value60 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value5.5 s

71/100

10%

Network Requests Diagram

stueber.de

361 ms

stueber.de

452 ms

545 ms

custom.css

436 ms

jquery.min.js

33 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 83% of them (20 requests) were addressed to the original Stueber.de, 8% (2 requests) were made to Cdnjs.cloudflare.com and 8% (2 requests) were made to Matomo.camediaonline.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Stueber.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 261.2 kB (78%)

Content Size

334.7 kB

After Optimization

73.4 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Stueber.de main page is 334.7 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. CSS take 255.0 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 34.3 kB

  • Original 47.1 kB
  • After minification 41.9 kB
  • After compression 12.8 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 5.2 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 34.3 kB or 73% of the original size.

JavaScript Optimization

-3%

Potential reduce by 1.0 kB

  • Original 32.6 kB
  • After minification 32.2 kB
  • After compression 31.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-89%

Potential reduce by 225.9 kB

  • Original 255.0 kB
  • After minification 199.9 kB
  • After compression 29.1 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. Stueber.de needs all CSS files to be minified and compressed as it can save up to 225.9 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (14%)

Requests Now

21

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stueber. 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 JavaScripts and as a result speed up the page load time.

Network Requests Diagram

stueber.de

stueber.de

361 ms

stueber.de

stueber.de

452 ms

545 ms

custom.css

custom.css

436 ms

jquery.min.js

jquery.min.js

33 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

46 ms

custom.js

custom.js

327 ms

container_ryaZS7Lm.js

container_ryaZS7Lm.js

604 ms

hero-enbrea.klassenbuch.svg

hero-enbrea.klassenbuch.svg

110 ms

hero-ezcastprotest.svg

hero-ezcastprotest.svg

2932 ms

davinci.logo.svg

davinci.logo.svg

220 ms

magellan.logo.svg

magellan.logo.svg

327 ms

enbrea.logo.svg

enbrea.logo.svg

330 ms

ezcastpro.logo.svg

ezcastpro.logo.svg

333 ms

quattropod.logo.svg

quattropod.logo.svg

333 ms

showtime.logo.svg

showtime.logo.svg

336 ms

logo.eckert.neu2.svg

logo.eckert.neu2.svg

434 ms

logo.eduplaces.svg

logo.eduplaces.svg

437 ms

logo.endoo.svg

logo.endoo.svg

438 ms

logo.huawei.svg

logo.huawei.svg

440 ms

logo.infoschool.neu2.svg

logo.infoschool.neu2.svg

444 ms

logo.sdui.neu2.svg

logo.sdui.neu2.svg

541 ms

logo.nec.neu2.svg

logo.nec.neu2.svg

543 ms

matomo.php

matomo.php

136 ms

Accessibility Review

stueber.de accessibility score

89

Accessibility Issues

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

Buttons do not have an accessible name

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

stueber.de 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

stueber.de SEO score

93

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Stueber.de 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 Stueber.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

stueber.de

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