Tools & Wizards About Us
web-z.net screenshot

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

web-z.net

Nachhilfe und Wissen ۞ web-z.net

Page Load Speed

2.8 sec in total

First Response

275 ms

Resources Loaded

2.4 sec

Page Rendered

122 ms

web-z.net screenshot

About Website

Click here to check amazing Web Z content. Otherwise, check out these important facts you probably never knew about web-z.net

Nachhilfe-Netzwerk, das von vielen ehrenamtlichen Helfern einer riesigen Gemeinschaft gestaltet wird.

Visit web-z.net

Key Findings

We analyzed Web-z.net page load time and found that the first response time was 275 ms and then it took 2.5 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

web-z.net performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

90/100

25%

SI (Speed Index)

Value3.0 s

94/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value2.3 s

99/100

10%

Network Requests Diagram

web-z.net

275 ms

www.web-z.net

311 ms

stil.css

230 ms

index.css

253 ms

urchin.js

17 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 91% of them (40 requests) were addressed to the original Web-z.net, 5% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Forum.web-z.net. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Web-z.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 19.4 kB (20%)

Content Size

99.0 kB

After Optimization

79.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Web-z.net main page is 99.0 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. 15% of websites need less resources to load. Images take 69.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 18.2 kB

  • Original 22.3 kB
  • After minification 22.3 kB
  • After compression 4.1 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 18.2 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 161 B

  • Original 69.4 kB
  • After minification 69.3 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. Web Z images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 971 B

  • Original 6.8 kB
  • After minification 6.8 kB
  • After compression 5.9 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 971 B or 14% of the original size.

CSS Optimization

-19%

Potential reduce by 78 B

  • Original 411 B
  • After minification 411 B
  • After compression 333 B

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. Web-z.net needs all CSS files to be minified and compressed as it can save up to 78 B or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (64%)

Requests Now

42

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Web Z. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

web-z.net

web-z.net

275 ms

www.web-z.net

www.web-z.net

311 ms

stil.css

stil.css

230 ms

index.css

index.css

253 ms

urchin.js

urchin.js

17 ms

erstaunt3.gif

erstaunt3.gif

258 ms

universitaet.gif

universitaet.gif

235 ms

grau.gif

grau.gif

260 ms

navigation.gif

navigation.gif

243 ms

n-g2.gif

n-g2.gif

245 ms

n-g.gif

n-g.gif

268 ms

forum.gif

forum.gif

249 ms

n-o2.gif

n-o2.gif

469 ms

n-o.gif

n-o.gif

477 ms

biologie.gif

biologie.gif

470 ms

avatar2.jpg

avatar2.jpg

484 ms

mathe.gif

mathe.gif

496 ms

icons.jpg

icons.jpg

494 ms

bio.gif

bio.gif

700 ms

deutsch.gif

deutsch.gif

698 ms

geschichte.gif

geschichte.gif

703 ms

pferdehof.gif

pferdehof.gif

720 ms

chemie.gif

chemie.gif

724 ms

englisch.gif

englisch.gif

723 ms

informatik.gif

informatik.gif

918 ms

hellsehen.gif

hellsehen.gif

922 ms

physik.gif

physik.gif

923 ms

franz.gif

franz.gif

951 ms

medizin.gif

medizin.gif

948 ms

mathe.gif

mathe.gif

952 ms

latein.gif

latein.gif

1146 ms

philosophie.gif

philosophie.gif

1150 ms

mathetools.gif

mathetools.gif

1052 ms

erdkunde.jpg

erdkunde.jpg

1175 ms

raetsel.gif

raetsel.gif

1184 ms

dunkel.gif

dunkel.gif

1085 ms

pixel.php

pixel.php

266 ms

bg.jpg

bg.jpg

1263 ms

muster.gif

muster.gif

1298 ms

seite.gif

seite.gif

1376 ms

fruehling.jpg

fruehling.jpg

1575 ms

fruehling-l.jpg

fruehling-l.jpg

1488 ms

__utm.gif

__utm.gif

6 ms

icons_bg2.jpg

icons_bg2.jpg

1259 ms

Accessibility Review

web-z.net accessibility score

54

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.

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

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

Best Practices

web-z.net best practices score

75

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

SEO Factors

web-z.net SEO score

69

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

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 Web-z.net 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 Web-z.net 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

web-z.net

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