3.3 sec in total
301 ms
2.8 sec
134 ms
Click here to check amazing Duesseldorf content for Germany. Otherwise, check out these important facts you probably never knew about duesseldorf.de
Offizielles Stadtportal der Landeshauptstadt Düsseldorf. Mit Angeboten aus den Bereichen Aktuelles, Lebenssituationen, Rathaus Online, Tourismus, Kunst, Kultur, ...
Visit duesseldorf.deWe analyzed Duesseldorf.de page load time and found that the first response time was 301 ms and then it took 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.
duesseldorf.de performance score
name
value
score
weighting
Value5.5 s
6/100
10%
Value10.0 s
0/100
25%
Value11.2 s
5/100
10%
Value340 ms
74/100
30%
Value0.282
43/100
15%
Value18.9 s
3/100
10%
301 ms
483 ms
367 ms
276 ms
384 ms
Our browser made a total of 49 requests to load all elements on the main page. We found that 92% of them (45 requests) were addressed to the original Duesseldorf.de, 4% (2 requests) were made to Piwik.itk-rheinland.de and 2% (1 request) were made to Code.etracker.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Duesseldorf.de.
Page size can be reduced by 227.4 kB (9%)
2.6 MB
2.4 MB
In fact, the total size of Duesseldorf.de main page is 2.6 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. 45% of websites need less resources to load. Images take 2.5 MB which makes up the majority of the site volume.
Potential reduce by 21.0 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. This page needs HTML code to be minified as it can gain 3.9 kB, which is 14% 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 21.0 kB or 77% of the original size.
Potential reduce by 159.7 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. Duesseldorf images are well optimized though.
Potential reduce by 33.3 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 33.3 kB or 65% of the original size.
Potential reduce by 13.4 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. Duesseldorf.de needs all CSS files to be minified and compressed as it can save up to 13.4 kB or 84% of the original size.
Number of requests can be reduced by 7 (16%)
43
36
The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duesseldorf. 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.
duesseldorf.de
301 ms
483 ms
screen.css
367 ms
modernizr_min.js
276 ms
plugins_min.js
384 ms
functions_src.js
224 ms
logo.png
94 ms
teilen.png
94 ms
facebook.png
96 ms
twitter.png
202 ms
mail.png
204 ms
wetter.png
275 ms
suche.png
202 ms
pan04_day.jpg
880 ms
pan05_day.jpg
468 ms
pan15_day.jpg
732 ms
pan03_day.jpg
825 ms
pan19_day.jpg
820 ms
pan22_night.jpg
916 ms
pan07_night.jpg
755 ms
pan13_night.jpg
915 ms
pan10_night.jpg
947 ms
pan17_night.jpg
1093 ms
fluechtlinge.jpg
915 ms
readmore.gif
978 ms
refugees.jpg
1006 ms
tdf2017.jpg
1009 ms
rathaus.jpg
1008 ms
schadowplatz.jpg
1043 ms
3.jpg
1074 ms
4.jpg
1096 ms
sportstadt.jpg
1188 ms
6.jpg
1098 ms
teaserhp_160226.jpg
1233 ms
hp.jpg
1269 ms
teaserhp.jpg
1274 ms
teaserhp.jpg
1278 ms
logo_lhd_klein.jpg
1190 ms
contact.gif
1280 ms
citymap.gif
1267 ms
sitemap.gif
1314 ms
imprint.gif
1278 ms
guestbook.gif
1276 ms
help.gif
1279 ms
t.js
413 ms
print.gif
1176 ms
cnt_js.php
267 ms
piwik.js
572 ms
piwik.js
645 ms
duesseldorf.de accessibility score
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
[aria-hidden="true"] elements contain focusable descendents
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
duesseldorf.de best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
duesseldorf.de SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
DE
DE
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duesseldorf.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 Duesseldorf.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.
duesseldorf.de
Open Graph description is not detected on the main page of Duesseldorf. 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: