Tools & Wizards About Us

Report Summary

  • 92

    Performance

    Renders faster than
    92% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

brinkmann-du.de

Mathematik und Physik für Schüler, Lehrer und Eltern

Page Load Speed

3.1 sec in total

First Response

358 ms

Resources Loaded

2.7 sec

Page Rendered

75 ms

About Website

Click here to check amazing Brinkmann Du content for Germany. Otherwise, check out these important facts you probably never knew about brinkmann-du.de

Eine Materialsammlung aus dem Unterricht für den Unterricht und Hilfestellungen für Schüler, Lehrer und Eltern. Mathematik und Physik in der gymnasialen Oberstufe und der FOS. Prüfungstrainer für die ...

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Key Findings

We analyzed Brinkmann-du.de page load time and found that the first response time was 358 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

brinkmann-du.de performance score

92

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

84/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.0 s

77/100

10%

Network Requests Diagram

brinkmann-du.de

358 ms

brinkmann-du.de

456 ms

math_style.css

112 ms

fb_root_1.js

223 ms

such_01.js

335 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 37% of them (10 requests) were addressed to the original Brinkmann-du.de, 22% (6 requests) were made to Apis.google.com and 7% (2 requests) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (778 ms) relates to the external source Webutation.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 28.6 kB (14%)

Content Size

202.4 kB

After Optimization

173.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Brinkmann-du.de main page is 202.4 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. 20% of websites need less resources to load. Javascripts take 156.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 25.7 kB

  • Original 32.3 kB
  • After minification 26.0 kB
  • After compression 6.6 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 6.2 kB, which is 19% 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 25.7 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 584 B

  • Original 9.9 kB
  • After minification 9.4 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. Brinkmann Du images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.3 kB

  • Original 156.9 kB
  • After minification 156.6 kB
  • After compression 155.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-32%

Potential reduce by 1.0 kB

  • Original 3.3 kB
  • After minification 3.3 kB
  • After compression 2.2 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. Brinkmann-du.de needs all CSS files to be minified and compressed as it can save up to 1.0 kB or 32% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (57%)

Requests Now

21

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Brinkmann Du. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

brinkmann-du.de accessibility score

68

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.

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

brinkmann-du.de best practices score

50

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

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

brinkmann-du.de SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Brinkmann-du.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Brinkmann-du.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

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