Report Summary

  • 62

    Performance

    Renders faster than
    76% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

trisomie13.de

LEONA e.V. - Familienselbsthilfe bei seltenen Chromosomenveränderungen: Start

Page Load Speed

5.1 sec in total

First Response

357 ms

Resources Loaded

4.1 sec

Page Rendered

597 ms

trisomie13.de screenshot

About Website

Welcome to trisomie13.de homepage info - get ready to check Trisomie 13 best content right away, or after learning these important things about trisomie13.de

Selbsthilfe, Eltern, Kinder, Behinderung, Chromosomen, Trisomie, Monosomie, Translokation, Deletion, Syndrom, Entwicklungsverzögerung, Schwangerschaftsabbruch, Totgeburt, vorgeburtlich, pränatal, Diag...

Visit trisomie13.de

Key Findings

We analyzed Trisomie13.de page load time and found that the first response time was 357 ms and then it took 4.7 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

trisomie13.de performance score

62

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value34.1 s

0/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value4.5 s

82/100

10%

Network Requests Diagram

trisomie13.de

357 ms

456 ms

merged-47b4995540cb420bb48aa3eada272a09-c5696707864ad502402d8b1eb639597c.css

120 ms

news-basic.css

240 ms

merged-41fc297d06704867632e67c806ee0b8b-fd5aa56be1d7a5981a7447b32c81282e.css

459 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Trisomie13.de, 84% (37 requests) were made to Leona-ev.de and 5% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Leona-ev.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 209.7 kB (2%)

Content Size

12.3 MB

After Optimization

12.1 MB

In fact, the total size of Trisomie13.de main page is 12.3 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. 40% of websites need less resources to load. Images take 12.2 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 55.8 kB

  • Original 67.6 kB
  • After minification 63.2 kB
  • After compression 11.8 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 55.8 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 153.9 kB

  • Original 12.2 MB
  • After minification 12.0 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. Trisomie 13 images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 30.3 kB
  • After minification 30.3 kB
  • After compression 30.3 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.

Requests Breakdown

Number of requests can be reduced by 19 (48%)

Requests Now

40

After Optimization

21

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Trisomie 13. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

trisomie13.de accessibility score

71

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

trisomie13.de 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

High

Page has valid source maps

SEO Factors

trisomie13.de SEO score

89

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

High

Tap targets are not sized appropriately

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 Trisomie13.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 Trisomie13.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

Open Graph description is not detected on the main page of Trisomie 13. 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: