Tools & Wizards About Us
zi-mannheim.de screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

zi-mannheim.de

ZI | Zentralinstitut für Seelische Gesundheit in Mannheim: ZI Mannheim

Page Load Speed

3.4 sec in total

First Response

311 ms

Resources Loaded

2.3 sec

Page Rendered

738 ms

zi-mannheim.de screenshot

About Website

Visit zi-mannheim.de now to see the best up-to-date ZI Mannheim content for Germany and also check out these interesting facts you probably never knew about zi-mannheim.de

Das ZI in Mannheim ist ein Krankenhaus für alle Arten psychischer Erkrankungen und eine Forschungseinrichtung im Bereich Psychiatrie und Psychotherapie.

Visit zi-mannheim.de

Key Findings

We analyzed Zi-mannheim.de page load time and found that the first response time was 311 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

zi-mannheim.de performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value4.0 s

50/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value630 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0.219

57/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

zi-mannheim.de

311 ms

www.zi-mannheim.de

698 ms

7015c8c4ac5ff815b57530b221005fc6.css

195 ms

style.css

295 ms

news-basic.css

294 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that all of those requests were addressed to Zi-mannheim.de and no external sources were called. The less responsive or slowest element that took the longest time to load (762 ms) belongs to the original domain Zi-mannheim.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 126.7 kB (10%)

Content Size

1.3 MB

After Optimization

1.1 MB

  • HTML
  • Images

In fact, the total size of Zi-mannheim.de main page is 1.3 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. 45% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 110.8 kB

  • Original 135.8 kB
  • After minification 133.7 kB
  • After compression 25.0 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 110.8 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 15.9 kB

  • Original 1.1 MB
  • After minification 1.1 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. ZI Mannheim images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 28 (58%)

Requests Now

48

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZI Mannheim. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zi-mannheim.de

zi-mannheim.de

311 ms

www.zi-mannheim.de

www.zi-mannheim.de

698 ms

7015c8c4ac5ff815b57530b221005fc6.css

7015c8c4ac5ff815b57530b221005fc6.css

195 ms

style.css

style.css

295 ms

news-basic.css

news-basic.css

294 ms

bootstrap.min.css

bootstrap.min.css

392 ms

SourceSansPro.css

SourceSansPro.css

299 ms

t310-custom.css

t310-custom.css

300 ms

zi.css

zi.css

302 ms

font-awesome.min.css

font-awesome.min.css

405 ms

jquery.mmenu.css

jquery.mmenu.css

408 ms

jquery.mmenu.positioning.css

jquery.mmenu.positioning.css

410 ms

custom.css

custom.css

410 ms

t310.css

t310.css

410 ms

jquery-3.7.1.min.js

jquery-3.7.1.min.js

594 ms

theme-blue.css

theme-blue.css

495 ms

responsive.css

responsive.css

497 ms

ConsentController.js

ConsentController.js

413 ms

klaro.js

klaro.js

609 ms

popper.min.js

popper.min.js

414 ms

bootstrap.min.js

bootstrap.min.js

603 ms

jquery.mmenu.js

jquery.mmenu.js

584 ms

jquery.smartmenus.min.js

jquery.smartmenus.min.js

584 ms

iframeResizer.min.js

iframeResizer.min.js

585 ms

util-230503.js

util-230503.js

606 ms

jcarousellite_1.0.1c4.js

jcarousellite_1.0.1c4.js

672 ms

zentralinstitut-fuer-seelische-gesundheit-blue.svg

zentralinstitut-fuer-seelische-gesundheit-blue.svg

145 ms

sticky_logo_zi.png

sticky_logo_zi.png

146 ms

navbar-toggle-blue-icon.svg

navbar-toggle-blue-icon.svg

186 ms

slider-bg-blue.png

slider-bg-blue.png

187 ms

01_1920x592-istock-Eugenio-Marongiu.jpg

01_1920x592-istock-Eugenio-Marongiu.jpg

375 ms

csm_unterstuetzung-fuer-angehoerige-bei-demenz_49f299e313.jpeg

csm_unterstuetzung-fuer-angehoerige-bei-demenz_49f299e313.jpeg

278 ms

csm_Depression-Treatment-Clinician-and-Patient-Training-Session_2a14209bd0.jpg

csm_Depression-Treatment-Clinician-and-Patient-Training-Session_2a14209bd0.jpg

203 ms

csm_nathalie-holz-zi-professorin-entwicklungsneurowissenschaften_3f14ff28a0.jpg

csm_nathalie-holz-zi-professorin-entwicklungsneurowissenschaften_3f14ff28a0.jpg

204 ms

blue-arrow-next.svg

blue-arrow-next.svg

276 ms

patientin-am-zi.jpg

patientin-am-zi.jpg

282 ms

gefluechtete-querformat.jpg

gefluechtete-querformat.jpg

398 ms

csm_Wiederholungen-vor-dem-Schlaf-Wie-sie-unser-Gedaechtnis-beeinflussen_14017abfb9.png

csm_Wiederholungen-vor-dem-Schlaf-Wie-sie-unser-Gedaechtnis-beeinflussen_14017abfb9.png

592 ms

csm_zusammenhang-von-selbstregulation-und-alkoholkonsum_63e357a099.jpg

csm_zusammenhang-von-selbstregulation-und-alkoholkonsum_63e357a099.jpg

378 ms

csm_Stress-in-der-fruehen-Kindheit_e21a2fc57b.jpg

csm_Stress-in-der-fruehen-Kindheit_e21a2fc57b.jpg

378 ms

recruiting-kampagne.jpg

recruiting-kampagne.jpg

668 ms

white-arrow-next.svg

white-arrow-next.svg

477 ms

gruene-schleife-akzeptanz-startseite-web.jpg

gruene-schleife-akzeptanz-startseite-web.jpg

669 ms

stark-im-sturm-zi.jpg

stark-im-sturm-zi.jpg

762 ms

zi-pflegekampagne-unbedingt-wir-507x340.jpg

zi-pflegekampagne-unbedingt-wir-507x340.jpg

499 ms

testbild-startseite.jpg

testbild-startseite.jpg

578 ms

footer-bg-rounded.svg

footer-bg-rounded.svg

599 ms

SourceSansPro-Regular.woff

SourceSansPro-Regular.woff

628 ms

SourceSansPro-SemiBold.woff

SourceSansPro-SemiBold.woff

649 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

738 ms

icon-pen.svg

icon-pen.svg

601 ms

icon-close.svg

icon-close.svg

604 ms

icon-check-dark.svg

icon-check-dark.svg

617 ms

Accessibility Review

zi-mannheim.de accessibility score

94

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

zi-mannheim.de best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

zi-mannheim.de SEO score

93

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 Zi-mannheim.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 Zi-mannheim.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

zi-mannheim.de

Open Graph data is detected on the main page of ZI Mannheim. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: