Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 55% of websites

  • 0

    Best Practices

  • 90

    SEO

    Google-friendlier than
    68% of websites

kliniken-koeln.de

Kliniken Köln - Merheim, Holweide, Kinderkrankenhaus

Page Load Speed

15.3 sec in total

First Response

344 ms

Resources Loaded

14.7 sec

Page Rendered

212 ms

kliniken-koeln.de screenshot

About Website

Welcome to kliniken-koeln.de homepage info - get ready to check Kliniken Koeln best content for Germany right away, or after learning these important things about kliniken-koeln.de

Herzlich willkommen bei den Kliniken der Stadt Köln (Kinderkrankenhaus Amsterdamer Straße, Krankenhaus Holweide, Krankenhaus Merheim).

Visit kliniken-koeln.de

Key Findings

We analyzed Kliniken-koeln.de page load time and found that the first response time was 344 ms and then it took 14.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

kliniken-koeln.de performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.2 s

0/100

10%

LCP (Largest Contentful Paint)

Value39.8 s

0/100

25%

SI (Speed Index)

Value15.8 s

0/100

10%

TBT (Total Blocking Time)

Value5,520 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value43.6 s

0/100

10%

Network Requests Diagram

kliniken-koeln.de

344 ms

www.kliniken-koeln.de

959 ms

jquery-ui.css

569 ms

jquery.ui.autocomplete.css

238 ms

style.css

573 ms

Our browser made a total of 50 requests to load all elements on the main page. We found that all of those requests were addressed to Kliniken-koeln.de and no external sources were called. The less responsive or slowest element that took the longest time to load (10.1 sec) belongs to the original domain Kliniken-koeln.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 436.1 kB (12%)

Content Size

3.6 MB

After Optimization

3.2 MB

In fact, the total size of Kliniken-koeln.de main page is 3.6 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. Only 10% of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 48.6 kB

  • Original 63.9 kB
  • After minification 56.6 kB
  • After compression 15.3 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. This page needs HTML code to be minified as it can gain 7.3 kB, which is 11% 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 48.6 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 60.9 kB

  • Original 3.1 MB
  • After minification 3.1 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. Kliniken Koeln images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 276.6 kB

  • Original 374.5 kB
  • After minification 340.1 kB
  • After compression 97.9 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 276.6 kB or 74% of the original size.

CSS Optimization

-86%

Potential reduce by 49.9 kB

  • Original 58.4 kB
  • After minification 43.4 kB
  • After compression 8.4 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. Kliniken-koeln.de needs all CSS files to be minified and compressed as it can save up to 49.9 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (17%)

Requests Now

48

After Optimization

40

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kliniken Koeln. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

kliniken-koeln.de accessibility score

83

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

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

High

Links do not have a discernible name

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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.

SEO Factors

kliniken-koeln.de SEO score

90

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kliniken-koeln.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Kliniken-koeln.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 Kliniken Koeln. 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: