Access gscn.org. German Stem Cell Network for Basic & Applied Stem Cell Research

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value13.1 s

0/100

25%

SI (Speed Index)

Value7.7 s

24/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.355

31/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

gscn.org

294 ms

gscn.org

747 ms

default.css

293 ms

SearchSkinObjectPreview.css

387 ms

skin.css

392 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 90% of them (102 requests) were addressed to the original Gscn.org, 5% (6 requests) were made to Gscn-conferences.org and 4% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Gscn.org.

Content Size

19.7 MB

After Optimization

18.9 MB

In fact, the total size of Gscn.org main page is 19.7 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. 70% of websites need less resources to load. Images take 19.0 MB which makes up the majority of the site volume.

HTML Optimization

-66%

Potential reduce by 119.9 kB

Original 181.3 kB
After minification 164.5 kB
After compression 61.4 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 119.9 kB or 66% of the original size.

Image Optimization

-2%

Potential reduce by 449.9 kB

Original 19.0 MB
After minification 18.6 MB

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. Gscn images are well optimized though.

JavaScript Optimization

-39%

Potential reduce by 164.0 kB

Original 425.0 kB
After minification 425.0 kB
After compression 261.0 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 164.0 kB or 39% of the original size.

CSS Optimization

-39%

Potential reduce by 34.0 kB

Original 87.6 kB
After minification 87.6 kB
After compression 53.6 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. Gscn.org needs all CSS files to be minified and compressed as it can save up to 34.0 kB or 39% of the original size.

Requests Now

106

After Optimization

The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gscn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Links do not have descriptive text

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

EN
Language Claimed

EN
Encoding

UTF-8

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

gscn.org

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

German Stem Cell Network for Basic & Applied Stem Cell Research

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

gscn.org

gscn.org

default.css

SearchSkinObjectPreview.css

skin.css

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

gscn.org

gscn.org

default.css

SearchSkinObjectPreview.css

skin.css

container.css

portal.css

Style.css

owl.carousel.css

animate.css

Style.css

jquery.js

jquery-migrate.js

jquery-ui.js

WebResource.axd

ScriptResource.axd

ScriptResource.axd

dnn.js

dnn.modalpopup.js

OwlCarousel.js

slick.min.js

dnncore.js

jquery.validationEngine-en.js

jquery.validationEngine.js

SearchSkinObjectPreview.js

dnngo-ThemePlugin.js

dnn.servicesframework.js

script.js

custom.js

bootstrap.css

css

GardarArnason_100x100.jpg

GSCN_Logo.jpg

Yamanaka-Muenster.jpg

Yamanaka-GSCN.jpg

Publikum2022.jpg

Outreach-Muenster.jpg

BjoernvonEyss_200x200.jpg

MelissaBirol_200x200.jpg

AnnualMagazine_GSCN_2023.jpg

GSCN_Download.png

Rezvani_UniStemDay_2024-3.jpg

Spuler-UniStemDay-Berlin-2024.jpg