Report Summary

  • 37

    Performance

    Renders faster than
    58% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 50% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

stabi-hb.de

Stadtbibliothek Bremen

Page Load Speed

5.9 sec in total

First Response

460 ms

Resources Loaded

4.8 sec

Page Rendered

692 ms

stabi-hb.de screenshot

About Website

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

Die Stadtbibliothek Bremen erfüllt mit ihrem Medien- und Dienstleistungsangebot einen Bildungs-, Kultur- und Informationsauftrag. An ihren zentralen und dezentralen Standorten hält sie über 500.000 Me...

Visit stabi-hb.de

Key Findings

We analyzed Stabi-hb.de page load time and found that the first response time was 460 ms and then it took 5.5 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

stabi-hb.de performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value460 ms

62/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value21.7 s

1/100

10%

Network Requests Diagram

stabi-hb.de

460 ms

www.stabi-hb.de

479 ms

styles2015.css

141 ms

contentslider.css

282 ms

sonofsuckerfish.css

281 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 54% of them (59 requests) were addressed to the original Stabi-hb.de, 38% (42 requests) were made to Images-eu.amazon.com and 2% (2 requests) were made to Cover.ekz.de. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Stabi-hb.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 361.7 kB (28%)

Content Size

1.3 MB

After Optimization

951.9 kB

In fact, the total size of Stabi-hb.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 927.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 56.4 kB

  • Original 68.4 kB
  • After minification 64.5 kB
  • After compression 12.0 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 56.4 kB or 82% of the original size.

Image Optimization

-8%

Potential reduce by 78.2 kB

  • Original 927.7 kB
  • After minification 849.5 kB

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. Stabi Hb images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 165.8 kB

  • Original 243.1 kB
  • After minification 222.7 kB
  • After compression 77.3 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 165.8 kB or 68% of the original size.

CSS Optimization

-82%

Potential reduce by 61.3 kB

  • Original 74.3 kB
  • After minification 54.7 kB
  • After compression 13.0 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Stabi-hb.de needs all CSS files to be minified and compressed as it can save up to 61.3 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (41%)

Requests Now

108

After Optimization

64

The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Stabi Hb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

stabi-hb.de accessibility score

80

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

stabi-hb.de best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

stabi-hb.de SEO score

82

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 doesn't use 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 Stabi-hb.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 Stabi-hb.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 description is not detected on the main page of Stabi Hb. 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: