Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

bibliotheksverband.de

dbv Deutscher Bibliotheksverband

Page Load Speed

4.2 sec in total

First Response

932 ms

Resources Loaded

2.4 sec

Page Rendered

834 ms

bibliotheksverband.de screenshot

About Website

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

Der Deutsche Bibliotheksverband e.V. vertritt mit seinen fast 2.100 Mitgliedern über 9.000 Bibliotheken mit 25.000 Beschäftigten und elf Mio. Nutzer*innen. Sein zentrales Anliegen: die Stärkung der Bi...

Visit bibliotheksverband.de

Key Findings

We analyzed Bibliotheksverband.de page load time and found that the first response time was 932 ms and then it took 3.3 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

bibliotheksverband.de performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value11.7 s

4/100

10%

TBT (Total Blocking Time)

Value1,860 ms

9/100

30%

CLS (Cumulative Layout Shift)

Value0.311

38/100

15%

TTI (Time to Interactive)

Value19.3 s

2/100

10%

Network Requests Diagram

www.bibliotheksverband.de

932 ms

style.css

315 ms

chunks.ffbbc8ec8ec043bc2125.cdfd09a746b5183c1201.bundle.js

557 ms

app.ffbbc8ec8ec043bc2125.050eff83570d9557d689.bundle.js

482 ms

matomo.js

426 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 95% of them (42 requests) were addressed to the original Bibliotheksverband.de, 5% (2 requests) were made to Matomo.e-fork.net. The less responsive or slowest element that took the longest time to load (932 ms) belongs to the original domain Bibliotheksverband.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 247.8 kB (10%)

Content Size

2.5 MB

After Optimization

2.3 MB

In fact, the total size of Bibliotheksverband.de main page is 2.5 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 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 101.1 kB

  • Original 123.2 kB
  • After minification 123.0 kB
  • After compression 22.1 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. 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 101.1 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 146.6 kB

  • Original 2.4 MB
  • After minification 2.2 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. Bibliotheksverband images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 66 B

  • Original 21.8 kB
  • After minification 21.8 kB
  • After compression 21.7 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 10 (28%)

Requests Now

36

After Optimization

26

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bibliotheksverband. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

bibliotheksverband.de accessibility score

98

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

[aria-hidden="true"] elements contain focusable descendents

Best Practices

bibliotheksverband.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

High

Missing source maps for large first-party JavaScript

SEO Factors

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