Tools & Wizards About Us
dibizentral.ch screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

dibizentral.ch

die Digitale Bibliothek Zentralschweiz. Startseite

Page Load Speed

5.3 sec in total

First Response

423 ms

Resources Loaded

4.1 sec

Page Rendered

829 ms

dibizentral.ch screenshot

About Website

Welcome to dibizentral.ch homepage info - get ready to check Dibizentral best content for Switzerland right away, or after learning these important things about dibizentral.ch

Digitale Bibliothek Zentralschweiz. Digitale Medien wie E-Books, E-Paper, E-Music, E-Audios und E-Videos ausleihen und herunterladen.

Visit dibizentral.ch

Key Findings

We analyzed Dibizentral.ch page load time and found that the first response time was 423 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

dibizentral.ch performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.3 s

0/100

25%

SI (Speed Index)

Value11.4 s

5/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.9 s

4/100

10%

Network Requests Diagram

dibizentral.ch

423 ms

dibizentral.ch

404 ms

welcome,51-0-0-100-0-0-1-0-0-0-0.html

361 ms

bootstrap.bundle.min.js

501 ms

jquery-3.3.1.min.js

498 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Dibizentral.ch, 56% (35 requests) were made to Static.onleihe.de and 29% (18 requests) were made to Dibizentral.onleihe.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Static.onleihe.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 364.5 kB (12%)

Content Size

3.0 MB

After Optimization

2.7 MB

  • HTML
  • Images

In fact, the total size of Dibizentral.ch main page is 3.0 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. 55% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 93.5 kB

  • Original 106.2 kB
  • After minification 72.8 kB
  • After compression 12.7 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 33.4 kB, which is 31% 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 93.5 kB or 88% of the original size.

Image Optimization

-9%

Potential reduce by 271.0 kB

  • Original 2.9 MB
  • After minification 2.6 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. Dibizentral images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 9 (15%)

Requests Now

60

After Optimization

51

  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dibizentral. 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 as a result speed up the page load time.

Network Requests Diagram

dibizentral.ch

dibizentral.ch

423 ms

dibizentral.ch

dibizentral.ch

404 ms

welcome,51-0-0-100-0-0-1-0-0-0-0.html

welcome,51-0-0-100-0-0-1-0-0-0-0.html

361 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

501 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

498 ms

foundation.min.js

foundation.min.js

599 ms

what-input.js

what-input.js

303 ms

selectize.js

selectize.js

609 ms

globals-09ec2bd.js

globals-09ec2bd.js

319 ms

hcaptcha-api-modified-be732977.js

hcaptcha-api-modified-be732977.js

1007 ms

facetFilter-be732977.js

facetFilter-be732977.js

419 ms

onleiheApp-be732977.js

onleiheApp-be732977.js

519 ms

onleiheForm-be732977.js

onleiheForm-be732977.js

595 ms

dvb_xa_ch_zg_zs_09ec2bd.css

dvb_xa_ch_zg_zs_09ec2bd.css

797 ms

foundation.min.css

foundation.min.css

104 ms

selectize.bootstrap5.css

selectize.bootstrap5.css

101 ms

defaultLogo.svg

defaultLogo.svg

142 ms

user-forum-icon-large.png

user-forum-icon-large.png

522 ms

im9783492605403s.jpg

im9783492605403s.jpg

681 ms

flag-de.svg

flag-de.svg

104 ms

flag-en.svg

flag-en.svg

101 ms

footer-logo.png

footer-logo.png

102 ms

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662 ms

im100s.jpg

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668 ms

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667 ms

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674 ms

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766 ms

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837 ms

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771 ms

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760 ms

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772 ms

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771 ms

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958 ms

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1131 ms

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1043 ms

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1055 ms

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1048 ms

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im65c36c01673f3d10bda07feas.jpg

1019 ms

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1145 ms

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1205 ms

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1138 ms

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1325 ms

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1336 ms

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1320 ms

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1322 ms

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1429 ms

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1392 ms

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1416 ms

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1418 ms

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1513 ms

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1432 ms

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1484 ms

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1511 ms

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1513 ms

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1522 ms

im9783832182779s.jpg

im9783832182779s.jpg

1527 ms

faq-icon-large.png

faq-icon-large.png

448 ms

mob-app-icon-large.png

mob-app-icon-large.png

453 ms

mob-app-icon.png

mob-app-icon.png

454 ms

googlePlay.png

googlePlay.png

454 ms

appStore.png

appStore.png

456 ms

amazon-appstore-de-black.png

amazon-appstore-de-black.png

544 ms

user-forum-icon.png

user-forum-icon.png

550 ms

Accessibility Review

dibizentral.ch accessibility score

95

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

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

<object> elements do not have alternate text

Best Practices

dibizentral.ch 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

Page has valid source maps

SEO Factors

dibizentral.ch 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 Dibizentral.ch 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 Dibizentral.ch 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

dibizentral.ch

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