Tools & Wizards About Us
rehanova.de screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

rehanova.de

Home: Rehanova

Page Load Speed

2.7 sec in total

First Response

331 ms

Resources Loaded

2.2 sec

Page Rendered

112 ms

rehanova.de screenshot

About Website

Visit rehanova.de now to see the best up-to-date Rehanova content and also check out these interesting facts you probably never knew about rehanova.de

RehaNova Köln ist eine neurologisch/neurochirurgische Rehabilitationsklinik mit 132 Betten und befindet sich in enger räumlicher und funktionaler Anbindung an das Klinikum Köln-Merheim, einem Haus der...

Visit rehanova.de

Key Findings

We analyzed Rehanova.de page load time and found that the first response time was 331 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

rehanova.de performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

3/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value2,890 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.02

100/100

15%

TTI (Time to Interactive)

Value14.9 s

8/100

10%

Network Requests Diagram

331 ms

style.css

282 ms

c3_3_fullpage.css

373 ms

stylesheet_7af61cf396.css

457 ms

SrLanguageMenu.css

460 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that all of those requests were addressed to Rehanova.de and no external sources were called. The less responsive or slowest element that took the longest time to load (733 ms) belongs to the original domain Rehanova.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 194.5 kB (25%)

Content Size

793.5 kB

After Optimization

598.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rehanova.de main page is 793.5 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. 25% of websites need less resources to load. Images take 536.1 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 12.5 kB

  • Original 17.3 kB
  • After minification 16.5 kB
  • After compression 4.8 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 12.5 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 1.4 kB

  • Original 536.1 kB
  • After minification 534.8 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. Rehanova images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 93.9 kB

  • Original 139.3 kB
  • After minification 133.5 kB
  • After compression 45.4 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 93.9 kB or 67% of the original size.

CSS Optimization

-86%

Potential reduce by 86.8 kB

  • Original 100.7 kB
  • After minification 54.0 kB
  • After compression 13.9 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. Rehanova.de needs all CSS files to be minified and compressed as it can save up to 86.8 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (72%)

Requests Now

36

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rehanova. 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 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

331 ms

style.css

style.css

282 ms

c3_3_fullpage.css

c3_3_fullpage.css

373 ms

stylesheet_7af61cf396.css

stylesheet_7af61cf396.css

457 ms

SrLanguageMenu.css

SrLanguageMenu.css

460 ms

jquery-1.10.2.min.js

jquery-1.10.2.min.js

733 ms

jquery.cycle.all-3.0.3.min.js

jquery.cycle.all-3.0.3.min.js

554 ms

jquery.easing-1.3.js

jquery.easing-1.3.js

465 ms

javascript_f188e587dd.js

javascript_f188e587dd.js

465 ms

slimbox.2.0.4.yui.js

slimbox.2.0.4.yui.js

542 ms

jsfunc.menu.js

jsfunc.menu.js

547 ms

base.css

base.css

186 ms

if_yaml_nav_shinybuttons.css

if_yaml_nav_shinybuttons.css

186 ms

if_yaml_nav_vlist.css

if_yaml_nav_vlist.css

258 ms

basemod.css

basemod.css

264 ms

basemod_c3_3.css

basemod_c3_3.css

273 ms

basemod_fullpage.css

basemod_fullpage.css

275 ms

basemod_equal-heights.css

basemod_equal-heights.css

277 ms

forms.css

forms.css

343 ms

content.css

content.css

439 ms

typo3-RTE.css

typo3-RTE.css

362 ms

print_003_draft.css

print_003_draft.css

366 ms

basemod_fullpage.css

basemod_fullpage.css

93 ms

bullet-gelb.png

bullet-gelb.png

95 ms

header_bg.png

header_bg.png

91 ms

logo-rehanova.png

logo-rehanova.png

94 ms

current.png

current.png

96 ms

de.png

de.png

89 ms

en.png

en.png

177 ms

icon_versenden.gif

icon_versenden.gif

180 ms

icon_drucken.gif

icon_drucken.gif

183 ms

rehanova-parkseite.jpg

rehanova-parkseite.jpg

457 ms

rehanova-atrium.jpg

rehanova-atrium.jpg

460 ms

rehanova-koeln.jpg

rehanova-koeln.jpg

460 ms

rehanova-innenhof.jpg

rehanova-innenhof.jpg

610 ms

csm_fortbildung_b3d0163b69.jpg

csm_fortbildung_b3d0163b69.jpg

268 ms

rehanova-zertifiziert.jpg

rehanova-zertifiziert.jpg

273 ms

Accessibility Review

rehanova.de accessibility score

86

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

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

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.

Best Practices

rehanova.de best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

rehanova.de SEO score

100

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

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 Rehanova.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 Rehanova.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

rehanova.de

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