Tools & Wizards About Us

Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

sosy-lab.org

Software and Computational Systems Lab

Page Load Speed

2.1 sec in total

First Response

244 ms

Resources Loaded

1.7 sec

Page Rendered

119 ms

About Website

Visit sosy-lab.org now to see the best up-to-date Sosy Lab content for Germany and also check out these interesting facts you probably never knew about sosy-lab.org

The Chair for Software and Computational Systems at LMU Munich represents the area of development, verification, and maintenance of software systems. Our research focuses on models, methods, and algor...

Visit sosy-lab.org

Key Findings

We analyzed Sosy-lab.org page load time and found that the first response time was 244 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

sosy-lab.org performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

96/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.5 s

100/100

10%

Network Requests Diagram

sosy-lab.org

244 ms

www.sosy-lab.org

511 ms

layout.css

119 ms

design.css

235 ms

sosylogo.png

341 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 88% of them (7 requests) were addressed to the original Sosy-lab.org, 13% (1 request) were made to Matomo.sosy-lab.org. The less responsive or slowest element that took the longest time to load (721 ms) relates to the external source Matomo.sosy-lab.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 7.1 kB (4%)

Content Size

158.8 kB

After Optimization

151.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sosy-lab.org main page is 158.8 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. Only 10% of websites need less resources to load. Images take 126.4 kB which makes up the majority of the site volume.

HTML Optimization

-60%

Potential reduce by 3.4 kB

  • Original 5.7 kB
  • After minification 5.5 kB
  • After compression 2.3 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. 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 3.4 kB or 60% of the original size.

Image Optimization

-2%

Potential reduce by 2.5 kB

  • Original 126.4 kB
  • After minification 124.0 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. Sosy Lab images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 66 B

  • Original 21.8 kB
  • After minification 21.8 kB
  • After compression 21.7 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

-25%

Potential reduce by 1.2 kB

  • Original 4.8 kB
  • After minification 4.8 kB
  • After compression 3.6 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. Sosy-lab.org needs all CSS files to be minified and compressed as it can save up to 1.2 kB or 25% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

6

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 6 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sosy Lab. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

sosy-lab.org accessibility score

90

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

sosy-lab.org best practices score

83

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

sosy-lab.org SEO score

98

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sosy-lab.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sosy-lab.org 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

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