Report Summary

  • 39

    Performance

    Renders faster than
    59% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

informatik-forum.at

Web Server's Default Page

Page Load Speed

5.3 sec in total

First Response

368 ms

Resources Loaded

4.3 sec

Page Rendered

607 ms

informatik-forum.at screenshot

About Website

Click here to check amazing Informatik Forum content for India. Otherwise, check out these important facts you probably never knew about informatik-forum.at

A Forum for students at the Technical University Vienna, Austria

Visit informatik-forum.at

Key Findings

We analyzed Informatik-forum.at page load time and found that the first response time was 368 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

informatik-forum.at performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value5.7 s

52/100

10%

TBT (Total Blocking Time)

Value810 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

informatik-forum.at

368 ms

www.informatik-forum.at

357 ms

www.informatik-forum.at

870 ms

yuiloader-dom-event.js

511 ms

connection-min.js

309 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 75% of them (40 requests) were addressed to the original Informatik-forum.at, 6% (3 requests) were made to Facebook.com and 4% (2 requests) were made to Cdn.mathjax.org. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Informatik-forum.at.

Page Optimization Overview & Recommendations

Page size can be reduced by 545.7 kB (67%)

Content Size

811.8 kB

After Optimization

266.1 kB

In fact, the total size of Informatik-forum.at main page is 811.8 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 401.7 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 186.0 kB

  • Original 208.4 kB
  • After minification 172.9 kB
  • After compression 22.4 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. This page needs HTML code to be minified as it can gain 35.5 kB, which is 17% 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 186.0 kB or 89% of the original size.

Image Optimization

-4%

Potential reduce by 4.1 kB

  • Original 102.5 kB
  • After minification 98.4 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. Informatik Forum images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 270.2 kB

  • Original 401.7 kB
  • After minification 399.7 kB
  • After compression 131.5 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 270.2 kB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 85.5 kB

  • Original 99.3 kB
  • After minification 77.3 kB
  • After compression 13.8 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. Informatik-forum.at needs all CSS files to be minified and compressed as it can save up to 85.5 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 36 (73%)

Requests Now

49

After Optimization

13

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Informatik Forum. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

informatik-forum.at accessibility score

95

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

Links do not have a discernible name

Best Practices

informatik-forum.at best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

informatik-forum.at SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Informatik-forum.at can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Informatik-forum.at 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 Informatik Forum. 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: