Access onlinetutorials.de. Kostenlose Online Tutorials zum Programmieren lernen

Report Summary

About Website

Visit onlinetutorials.de now to see the best up-to-date Online Tutorials content for Germany and also check out these interesting facts you probably never knew about onlinetutorials.de

OnlineTutorials bietet dir von allen wichtigen Programmiersprachen kostenlose Tutorials und Bücher, mit denen das Programmieren Lernen zum Kinderspiel wird

Visit onlinetutorials.de

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

70/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

www.onlinetutorials.de

667 ms

style.css

218 ms

style.min.css

245 ms

theme.min.css

247 ms

blocks.css

247 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 93% of them (27 requests) were addressed to the original Onlinetutorials.de, 7% (2 requests) were made to Bloggerei.de. The less responsive or slowest element that took the longest time to load (667 ms) belongs to the original domain Onlinetutorials.de.

Content Size

285.2 kB

After Optimization

225.1 kB

In fact, the total size of Onlinetutorials.de main page is 285.2 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. 30% of websites need less resources to load. Images take 143.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 56.3 kB

Original 71.7 kB
After minification 68.8 kB
After compression 15.4 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 56.3 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 1.3 kB

Original 143.7 kB
After minification 142.5 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. Online Tutorials images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 424 B

Original 52.9 kB
After minification 52.9 kB
After compression 52.5 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

-13%

Potential reduce by 2.2 kB

Original 16.9 kB
After minification 16.9 kB
After compression 14.7 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. Onlinetutorials.de needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 13% of the original size.

Requests Now

After Optimization

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Tutorials. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

Form elements do not have associated labels

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

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

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 Onlinetutorials.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 Onlinetutorials.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

onlinetutorials.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Kostenlose Online Tutorials zum Programmieren lernen

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)