Access itwissen.info. ITWissen.info - Technologiewissen online

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

62/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value8,620 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value31.6 s

0/100

10%

itwissen.info

281 ms

www.itwissen.info

881 ms

stylesheet_c3ad6dc8fa.css

177 ms

my_layout.css

179 ms

jquery.min.js

32 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 42% of them (33 requests) were addressed to the original Itwissen.info, 9% (7 requests) were made to Ads.itwissen.info and 8% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (937 ms) relates to the external source Googleads.g.doubleclick.net.

Content Size

1.4 MB

After Optimization

974.8 kB

In fact, the total size of Itwissen.info main page is 1.4 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 839.4 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 41.8 kB

Original 54.9 kB
After minification 52.9 kB
After compression 13.1 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 41.8 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 23.9 kB

Original 839.4 kB
After minification 815.6 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. ITWissen images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 244.9 kB

Original 369.8 kB
After minification 346.4 kB
After compression 124.9 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 244.9 kB or 66% of the original size.

CSS Optimization

-80%

Potential reduce by 83.7 kB

Original 104.9 kB
After minification 86.1 kB
After compression 21.2 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. Itwissen.info needs all CSS files to be minified and compressed as it can save up to 83.7 kB or 80% of the original size.

Requests Now

After Optimization

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ITWissen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

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

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

High

Links do not have a discernible name

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

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

Search Engine Optimization Advices

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

DE
Encoding

ISO-8859-1

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

itwissen.info

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

ITWissen.info - Technologiewissen online

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)

Network Requests Diagram

itwissen.info

www.itwissen.info

stylesheet_c3ad6dc8fa.css

my_layout.css

jquery.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

itwissen.info

www.itwissen.info

stylesheet_c3ad6dc8fa.css

my_layout.css

jquery.min.js

gpt.js

tn_dogpt_async.js

prototype-packed.js

scriptaculousEffects-packed.js

lightbox.js

lightbox.css

urchin.js

lightbox.js

slim_base.css

my_basemod.css

my_content.css

my_banner.css

my_navigation.css

sr_feuser_register.css

itw.css

my_print.css

font-awesome.min.css

pubads_impl_81.js

container.html

__utm.gif

main_bg.gif

bg_navi.png

itw_logo.png

arrow_black.gif

fwd.gif

computer_lexikon_suche.gif

sub_navi_bg_mid.png

pfeil_menutop_inact.gif

pfeil_menutop_inact.gif

media-schmid-1.jpg

arrow_black.gif

ajs.php

show_ads.js

ag.php

lg.php

zrt_lookup.html

show_ads_impl.js

ads