Tools & Wizards About Us
bielefeld.de screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

bielefeld.de

Willkommen in Bielefeld | Bielefeld

Page Load Speed

4.6 sec in total

First Response

281 ms

Resources Loaded

2.8 sec

Page Rendered

1.6 sec

bielefeld.de screenshot

About Website

Click here to check amazing Bielefeld content for Germany. Otherwise, check out these important facts you probably never knew about bielefeld.de

Visit bielefeld.de

Key Findings

We analyzed Bielefeld.de page load time and found that the first response time was 281 ms and then it took 4.4 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

bielefeld.de performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

33/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value9.2 s

13/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value12.6 s

14/100

10%

Network Requests Diagram

bielefeld.de

281 ms

www.bielefeld.de

510 ms

jquery-1.11.1.min.js

432 ms

jquery-ui-1.11.4.custom.min.js

349 ms

jquery-ui.min.css

183 ms

Our browser made a total of 53 requests to load all elements on the main page. We found that 98% of them (52 requests) were addressed to the original Bielefeld.de, 2% (1 request) were made to Statistik.rz-betrieb.de. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Bielefeld.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 265.5 kB (59%)

Content Size

447.5 kB

After Optimization

182.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bielefeld.de main page is 447.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Javascripts take 273.9 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 21.5 kB

  • Original 28.0 kB
  • After minification 24.4 kB
  • After compression 6.6 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 3.6 kB, which is 13% 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 21.5 kB or 77% of the original size.

Image Optimization

-1%

Potential reduce by 904 B

  • Original 77.0 kB
  • After minification 76.1 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. Bielefeld images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 187.3 kB

  • Original 273.9 kB
  • After minification 255.1 kB
  • After compression 86.6 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 187.3 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 55.8 kB

  • Original 68.5 kB
  • After minification 53.5 kB
  • After compression 12.7 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. Bielefeld.de needs all CSS files to be minified and compressed as it can save up to 55.8 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (69%)

Requests Now

51

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bielefeld. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bielefeld.de

bielefeld.de

281 ms

www.bielefeld.de

www.bielefeld.de

510 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

432 ms

jquery-ui-1.11.4.custom.min.js

jquery-ui-1.11.4.custom.min.js

349 ms

jquery-ui.min.css

jquery-ui.min.css

183 ms

jquery.readmore.min.js

jquery.readmore.min.js

184 ms

jquery.fontResizer-2.0.js

jquery.fontResizer-2.0.js

183 ms

scripts.js

scripts.js

271 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

353 ms

colorbox.css

colorbox.css

354 ms

style.css

style.css

511 ms

scripts.js

scripts.js

528 ms

common.css

common.css

173 ms

bg_rotelinie.gif

bg_rotelinie.gif

134 ms

logo.gif

logo.gif

173 ms

de_index.gif

de_index.gif

172 ms

bielefeld-integriert.jpg

bielefeld-integriert.jpg

265 ms

middot.gif

middot.gif

174 ms

btn_schrift_min.gif

btn_schrift_min.gif

173 ms

btn_schrift_plus.gif

btn_schrift_plus.gif

259 ms

icon_flagge_en.gif

icon_flagge_en.gif

337 ms

btn-app.png

btn-app.png

339 ms

btn-instagram.png

btn-instagram.png

340 ms

icon_youtube.gif

icon_youtube.gif

345 ms

icon_facebook.gif

icon_facebook.gif

429 ms

icon_twitter.gif

icon_twitter.gif

429 ms

icon_rss.gif

icon_rss.gif

506 ms

tanzfestival2016-210-100.gif

tanzfestival2016-210-100.gif

591 ms

d115_210.gif

d115_210.gif

510 ms

ico_extlink.gif

ico_extlink.gif

517 ms

ubb_abfallkalender_2014_156.gif

ubb_abfallkalender_2014_156.gif

680 ms

btn_doppelpfeil_runter_rot.gif

btn_doppelpfeil_runter_rot.gif

600 ms

btn_doppelpfeil_rauf_rot.gif

btn_doppelpfeil_rauf_rot.gif

674 ms

wetsymkl_3.gif

wetsymkl_3.gif

677 ms

wetsym_3.gif

wetsym_3.gif

686 ms

wetsymkl_n1.gif

wetsymkl_n1.gif

761 ms

wetsymkl_1.gif

wetsymkl_1.gif

768 ms

lutter-2016.png

lutter-2016.png

945 ms

logo-dkab_grau_156.gif

logo-dkab_grau_156.gif

945 ms

head_motiv_02.jpg

head_motiv_02.jpg

1005 ms

head_schatten.png

head_schatten.png

822 ms

btn_doppelpfeil_rechts.gif

btn_doppelpfeil_rechts.gif

822 ms

btn_doppelpfeil_links.gif

btn_doppelpfeil_links.gif

822 ms

app_schatten_bottom.png

app_schatten_bottom.png

926 ms

fade_news_fahne_lang.jpg

fade_news_fahne_lang.jpg

977 ms

fade_news_fahne.jpg

fade_news_fahne.jpg

979 ms

fade_news_fahne_kurz.jpg

fade_news_fahne_kurz.jpg

983 ms

btn_doppelpfeil_rechts_hellblau.gif

btn_doppelpfeil_rechts_hellblau.gif

982 ms

bkg_footer.jpg

bkg_footer.jpg

1095 ms

piwik.js

piwik.js

644 ms

btn_kalender.png

btn_kalender.png

331 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

335 ms

overlay.png

overlay.png

335 ms

Accessibility Review

bielefeld.de accessibility score

87

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-*] attributes do not match their roles

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

Links do not have a discernible name

Best Practices

bielefeld.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

Low

Detected JavaScript libraries

SEO Factors

bielefeld.de SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bielefeld.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 Bielefeld.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

bielefeld.de

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