Access vierfarben.de. Computer und Office | Bücher & E-Books

Report Summary

About Website

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

Fachbücher und Ratgeber zu Windows, macOS, Microsoft Office sowie smarte Geräte. Die ganze Computerwelt für Einsteiger ohne Vorwissen. Mit vielen Beispielen.

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name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value8.2 s

2/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value210 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.187

65/100

15%

TTI (Time to Interactive)

Value9.3 s

32/100

10%

www.vierfarben.de

458 ms

style.css

326 ms

jquery.fancybox-1.3.1.css

323 ms

nivo-slider.css

326 ms

default.css

327 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Vierfarben.de, 58% (39 requests) were made to Static.vierfarben.de and 28% (19 requests) were made to Media.vierfarben.de. The less responsive or slowest element that took the longest time to load (790 ms) relates to the external source Media.vierfarben.de.

Content Size

913.1 kB

After Optimization

681.1 kB

In fact, the total size of Vierfarben.de main page is 913.1 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. 40% of websites need less resources to load. Images take 664.9 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 33.2 kB

Original 41.5 kB
After minification 33.4 kB
After compression 8.3 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. This page needs HTML code to be minified as it can gain 8.1 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 33.2 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 44.7 kB

Original 664.9 kB
After minification 620.2 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. Vierfarben images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 84.2 kB

Original 123.4 kB
After minification 111.5 kB
After compression 39.2 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 84.2 kB or 68% of the original size.

CSS Optimization

-84%

Potential reduce by 69.9 kB

Original 83.3 kB
After minification 54.3 kB
After compression 13.4 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. Vierfarben.de needs all CSS files to be minified and compressed as it can save up to 69.9 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vierfarben. 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 from 8 to 1 for CSS and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

DE
Language Claimed

EN
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vierfarben.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Vierfarben.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

vierfarben.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Computer und Office | Bücher & E-Books | Rheinwerk Verlag

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)