Tools & Wizards About Us
staatsbibliothek-berlin.de screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

staatsbibliothek-berlin.de

Startseite | Staatsbibliothek zu Berlin

Page Load Speed

4.4 sec in total

First Response

391 ms

Resources Loaded

3 sec

Page Rendered

1 sec

staatsbibliothek-berlin.de screenshot

About Website

Click here to check amazing Staatsbibliothek Berlin content for Germany. Otherwise, check out these important facts you probably never knew about staatsbibliothek-berlin.de

Homepage der Staatsbibliothek zu Berlin

Visit staatsbibliothek-berlin.de

Key Findings

We analyzed Staatsbibliothek-berlin.de page load time and found that the first response time was 391 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

staatsbibliothek-berlin.de performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

68/100

10%

LCP (Largest Contentful Paint)

Value18.0 s

0/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

staatsbibliothek-berlin.de

391 ms

staatsbibliothek-berlin.de

955 ms

bootstrap-3feecece378df98459e09e58824e5dd71dc33d593825f4e3ab5299c032975b1e.css

115 ms

all.min.css

350 ms

sbb_main.css

423 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 73% of them (30 requests) were addressed to the original Staatsbibliothek-berlin.de, 22% (9 requests) were made to Blog.sbb.berlin and 5% (2 requests) were made to Webstats.sbb.berlin. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Blog.sbb.berlin.

Page Optimization Overview & Recommendations

Page size can be reduced by 292.9 kB (9%)

Content Size

3.4 MB

After Optimization

3.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Staatsbibliothek-berlin.de main page is 3.4 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. 35% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 56.2 kB

  • Original 68.5 kB
  • After minification 52.5 kB
  • After compression 12.3 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 16.0 kB, which is 23% 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 56.2 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 191.2 kB

  • Original 3.3 MB
  • After minification 3.1 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. Staatsbibliothek Berlin images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 45.6 kB

  • Original 67.5 kB
  • After minification 67.5 kB
  • After compression 21.9 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 45.6 kB or 68% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (38%)

Requests Now

34

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 34 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Staatsbibliothek Berlin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

staatsbibliothek-berlin.de

staatsbibliothek-berlin.de

391 ms

staatsbibliothek-berlin.de

staatsbibliothek-berlin.de

955 ms

bootstrap-3feecece378df98459e09e58824e5dd71dc33d593825f4e3ab5299c032975b1e.css

bootstrap-3feecece378df98459e09e58824e5dd71dc33d593825f4e3ab5299c032975b1e.css

115 ms

all.min.css

all.min.css

350 ms

sbb_main.css

sbb_main.css

423 ms

_photoswipe-129af27450c2a36f601bafc6fd1b7055f2ed4eff6265306f0631f04e97915832.css

_photoswipe-129af27450c2a36f601bafc6fd1b7055f2ed4eff6265306f0631f04e97915832.css

320 ms

style.css

style.css

325 ms

logoSBB-white.svg

logoSBB-white.svg

327 ms

Beethoven_9-Sinfonie_vollstaendig-495x278.jpg

Beethoven_9-Sinfonie_vollstaendig-495x278.jpg

936 ms

jquery.min.js

jquery.min.js

491 ms

popper.min.js

popper.min.js

491 ms

bootstrap.min.js

bootstrap.min.js

537 ms

main.js

main.js

515 ms

hammer.min.js

hammer.min.js

515 ms

photoswipe.min.js

photoswipe.min.js

526 ms

photoswipe-ui-default.min.js

photoswipe-ui-default.min.js

533 ms

bootstrap.lightbox.min.js

bootstrap.lightbox.min.js

551 ms

willkommen.jpg

willkommen.jpg

729 ms

faqImage.svg

faqImage.svg

629 ms

beratungsImage.svg

beratungsImage.svg

635 ms

logoSPK-white.svg

logoSPK-white.svg

643 ms

Oeffnungszeiten-clean-3-1-495x278.png

Oeffnungszeiten-clean-3-1-495x278.png

1137 ms

foerstelOAI-495x278.png

foerstelOAI-495x278.png

930 ms

24-05-06-Beethoven_Blog-DSO-495x278.png

24-05-06-Beethoven_Blog-DSO-495x278.png

832 ms

220524-IndieStabi-Blog-495x278.png

220524-IndieStabi-Blog-495x278.png

824 ms

Blogbild-8-495x278.jpg

Blogbild-8-495x278.jpg

1027 ms

WiWer-Blog--495x278.png

WiWer-Blog--495x278.png

1031 ms

Quer-durch-die-Stadt_Blog-1-495x278.png

Quer-durch-die-Stadt_Blog-1-495x278.png

1149 ms

WiWer-Zeitungen-Fund-495x278.jpg

WiWer-Zeitungen-Fund-495x278.jpg

1250 ms

slide_Katalog_durchsuchen.jpg

slide_Katalog_durchsuchen.jpg

726 ms

slide_Vor_Ort_arbeiten.jpg

slide_Vor_Ort_arbeiten.jpg

633 ms

slide_Veranstaltungen_besuchen.jpg

slide_Veranstaltungen_besuchen.jpg

714 ms

kultuwerk.jpeg

kultuwerk.jpeg

603 ms

fa-brands-400.ttf

fa-brands-400.ttf

556 ms

fa-regular-400.ttf

fa-regular-400.ttf

441 ms

fa-light-300.ttf

fa-light-300.ttf

577 ms

fa-thin-100.ttf

fa-thin-100.ttf

970 ms

fa-solid-900.ttf

fa-solid-900.ttf

874 ms

matomo.js

matomo.js

685 ms

matomo.php

matomo.php

125 ms

sbb_main_print.css

sbb_main_print.css

112 ms

Accessibility Review

staatsbibliothek-berlin.de accessibility score

89

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

staatsbibliothek-berlin.de best practices score

83

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

Browser errors were logged to the console

SEO Factors

staatsbibliothek-berlin.de SEO score

89

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

High

Tap targets are not sized appropriately

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 Staatsbibliothek-berlin.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 Staatsbibliothek-berlin.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

staatsbibliothek-berlin.de

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