Tools & Wizards About Us
biblio24.de 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

biblio24.de

Onlinebibliothek Sachsen-Anhalt. Startseite

Page Load Speed

5.2 sec in total

First Response

405 ms

Resources Loaded

3.8 sec

Page Rendered

972 ms

biblio24.de screenshot

About Website

Visit biblio24.de now to see the best up-to-date Biblio 24 content for Germany and also check out these interesting facts you probably never knew about biblio24.de

Onlinebibliothek Sachsen-Anhalt. Digitale Medien wie E-Books, E-Paper, E-Music, E-Audios und E-Videos ausleihen und herunterladen.

Visit biblio24.de

Key Findings

We analyzed Biblio24.de page load time and found that the first response time was 405 ms and then it took 4.8 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

biblio24.de performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value18.3 s

3/100

10%

Network Requests Diagram

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

405 ms

bootstrap.bundle.min.js

500 ms

jquery-3.3.1.min.js

500 ms

foundation.min.js

600 ms

what-input.js

302 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Biblio24.de, 24% (16 requests) were made to Biblio24.onleihe.de and 15% (10 requests) were made to Cms.onleihe.de. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Static.onleihe.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 299.6 kB (8%)

Content Size

3.6 MB

After Optimization

3.3 MB

  • HTML
  • Images

In fact, the total size of Biblio24.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. 60% of websites need less resources to load. Images take 3.5 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 97.6 kB

  • Original 109.8 kB
  • After minification 72.1 kB
  • After compression 12.1 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 37.7 kB, which is 34% 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 97.6 kB or 89% of the original size.

Image Optimization

-6%

Potential reduce by 201.9 kB

  • Original 3.5 MB
  • After minification 3.3 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. Biblio 24 images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 9 (14%)

Requests Now

65

After Optimization

56

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Biblio 24. 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

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

405 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

500 ms

jquery-3.3.1.min.js

jquery-3.3.1.min.js

500 ms

foundation.min.js

foundation.min.js

600 ms

what-input.js

what-input.js

302 ms

selectize.js

selectize.js

608 ms

globals-09ec2bd.js

globals-09ec2bd.js

369 ms

hcaptcha-api-modified-be732977.js

hcaptcha-api-modified-be732977.js

907 ms

facetFilter-be732977.js

facetFilter-be732977.js

469 ms

onleiheApp-be732977.js

onleiheApp-be732977.js

570 ms

onleiheForm-be732977.js

onleiheForm-be732977.js

599 ms

dvb_xa_de_sa_sa_09ec2bd.css

dvb_xa_de_sa_sa_09ec2bd.css

897 ms

foundation.min.css

foundation.min.css

103 ms

selectize.bootstrap5.css

selectize.bootstrap5.css

102 ms

defaultLogo.svg

defaultLogo.svg

106 ms

user-forum-icon-large.png

user-forum-icon-large.png

508 ms

im1039671027s.jpg

im1039671027s.jpg

705 ms

footer-logo.png

footer-logo.png

101 ms

faq-icon-large.png

faq-icon-large.png

450 ms

mob-app-icon-large.png

mob-app-icon-large.png

451 ms

sa_logo.jpg

sa_logo.jpg

452 ms

dbv.gif

dbv.gif

457 ms

mob-app-icon.png

mob-app-icon.png

471 ms

googlePlay.png

googlePlay.png

529 ms

appStore.png

appStore.png

547 ms

amazon-appstore-de-black.png

amazon-appstore-de-black.png

548 ms

user-forum-icon.png

user-forum-icon.png

549 ms

im9783986450564s.jpg

im9783986450564s.jpg

558 ms

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554 ms

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738 ms

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471 ms

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653 ms

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568 ms

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1023 ms

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929 ms

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944 ms

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838 ms

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843 ms

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926 ms

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1026 ms

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im15418s.jpg

938 ms

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im9783838767307_1200s.jpg

1113 ms

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1117 ms

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1130 ms

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1134 ms

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1305 ms

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1301 ms

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1388 ms

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1304 ms

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1316 ms

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1318 ms

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1486 ms

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1583 ms

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1490 ms

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1508 ms

im65c36b24673f3d10bda05561s.jpg

im65c36b24673f3d10bda05561s.jpg

1505 ms

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im9783641231248s.jpg

1590 ms

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1582 ms

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1678 ms

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1602 ms

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1607 ms

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1675 ms

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1207 ms

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1129 ms

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im9783832182779s.jpg

1140 ms

im9783423439190s.jpg

im9783423439190s.jpg

1140 ms

Accessibility Review

biblio24.de 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

biblio24.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

Page has valid source maps

SEO Factors

biblio24.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 Biblio24.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 Biblio24.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

biblio24.de

Open Graph description is not detected on the main page of Biblio 24. 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: