Tools & Wizards About Us
duesseldorfer-kultur.de screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

duesseldorfer-kultur.de

Düsseldorf Kultur Termine Veranstaltungen Programm, Düsseldorf Museum, Düsseldorf Theater Aufführungen, Museum, Klassik, Orchester Konzerte, Festival,...

Page Load Speed

8.7 sec in total

First Response

359 ms

Resources Loaded

6.5 sec

Page Rendered

1.9 sec

duesseldorfer-kultur.de screenshot

About Website

Click here to check amazing Duesseldorfer Kultur content. Otherwise, check out these important facts you probably never knew about duesseldorfer-kultur.de

Düsseldorf Kultur Termine Veranstaltungen Programm, Düsseldorf Museum, Düsseldorf Theater Aufführungen, Museum, Klassik, Orchester Konzerte, Festival, Ereignisse, Oper

Visit duesseldorfer-kultur.de

Key Findings

We analyzed Duesseldorfer-kultur.de page load time and found that the first response time was 359 ms and then it took 8.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

duesseldorfer-kultur.de performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value8.6 s

1/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value5,250 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.086

93/100

15%

TTI (Time to Interactive)

Value20.4 s

2/100

10%

Network Requests Diagram

duesseldorfer-kultur.de

359 ms

www.duesseldorfer-kultur.de

1761 ms

lib.css

650 ms

styles.css

620 ms

lib.js

1183 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 7% of them (4 requests) were addressed to the original Duesseldorfer-kultur.de, 93% (55 requests) were made to Culturall.de. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Culturall.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 938.5 kB (53%)

Content Size

1.8 MB

After Optimization

821.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Duesseldorfer-kultur.de main page is 1.8 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. 70% of websites need less resources to load. HTML takes 665.3 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 595.1 kB

  • Original 665.3 kB
  • After minification 618.3 kB
  • After compression 70.2 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 595.1 kB or 89% of the original size.

Image Optimization

-1%

Potential reduce by 3.6 kB

  • Original 621.1 kB
  • After minification 617.5 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. Duesseldorfer Kultur images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 269.1 kB

  • Original 384.0 kB
  • After minification 384.0 kB
  • After compression 114.8 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 269.1 kB or 70% of the original size.

CSS Optimization

-79%

Potential reduce by 70.6 kB

  • Original 89.2 kB
  • After minification 89.2 kB
  • After compression 18.6 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. Duesseldorfer-kultur.de needs all CSS files to be minified and compressed as it can save up to 70.6 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

56

After Optimization

56

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Duesseldorfer Kultur. According to our analytics all requests are already optimized.

Network Requests Diagram

duesseldorfer-kultur.de

duesseldorfer-kultur.de

359 ms

www.duesseldorfer-kultur.de

www.duesseldorfer-kultur.de

1761 ms

lib.css

lib.css

650 ms

styles.css

styles.css

620 ms

lib.js

lib.js

1183 ms

scripts.js

scripts.js

709 ms

get_kategorien.php

get_kategorien.php

223 ms

culturall.jpg

culturall.jpg

158 ms

SEG157230_130_img5de51b47b1534.jpg

SEG157230_130_img5de51b47b1534.jpg

140 ms

SEG178586_130_92895.jpg

SEG178586_130_92895.jpg

128 ms

SEG179087_130_92895.jpg

SEG179087_130_92895.jpg

131 ms

SEG177741_130_54831.jpg

SEG177741_130_54831.jpg

2386 ms

SEG178561_130_97665.jpg

SEG178561_130_97665.jpg

2385 ms

SEG177742_130_54831.jpg

SEG177742_130_54831.jpg

2388 ms

SEG178384_130_97495.jpg

SEG178384_130_97495.jpg

2389 ms

SEG175016_130_96336.jpg

SEG175016_130_96336.jpg

2390 ms

SEG178386_130_97497.jpg

SEG178386_130_97497.jpg

2390 ms

SEG178385_130_97496.jpg

SEG178385_130_97496.jpg

2391 ms

HP402_200x120.jpg

HP402_200x120.jpg

2390 ms

video.jpg

video.jpg

2391 ms

HP1454_200x120.jpg

HP1454_200x120.jpg

2392 ms

HP3553_200x120.jpg

HP3553_200x120.jpg

2394 ms

HP441_200x120.jpg

HP441_200x120.jpg

2393 ms

SP4762_200x120.jpg

SP4762_200x120.jpg

2395 ms

HP3234_200x120.jpg

HP3234_200x120.jpg

2394 ms

HP424_200x120.jpg

HP424_200x120.jpg

2395 ms

BL4859_200x120.jpg

BL4859_200x120.jpg

2395 ms

HP2807_200x120.jpg

HP2807_200x120.jpg

2396 ms

A876_200x120.jpg

A876_200x120.jpg

2396 ms

HP2797_200x120.jpg

HP2797_200x120.jpg

2411 ms

loader.svg

loader.svg

2396 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

2410 ms

get_gebiete.php

get_gebiete.php

1439 ms

ui-icons_444444_256x240.png

ui-icons_444444_256x240.png

283 ms

HP4786_200x120.jpg

HP4786_200x120.jpg

284 ms

SP3047_200x120.jpg

SP3047_200x120.jpg

285 ms

HP2581_200x120.jpg

HP2581_200x120.jpg

284 ms

HP3021_200x120.jpg

HP3021_200x120.jpg

284 ms

HP2207_200x120.jpg

HP2207_200x120.jpg

285 ms

HP2368_200x120.jpg

HP2368_200x120.jpg

285 ms

HP3377_200x120.png

HP3377_200x120.png

287 ms

HP3645_200x120.png

HP3645_200x120.png

287 ms

HP3368_200x120.jpg

HP3368_200x120.jpg

286 ms

SP4226_200x120.jpg

SP4226_200x120.jpg

378 ms

SP4821_200x120.png

SP4821_200x120.png

377 ms

SP4854_200x120.jpg

SP4854_200x120.jpg

383 ms

A1809_200x120.jpg

A1809_200x120.jpg

407 ms

BL4966_200x120.jpg

BL4966_200x120.jpg

414 ms

BL4967_200x120.jpg

BL4967_200x120.jpg

385 ms

BL4792_200x120.jpg

BL4792_200x120.jpg

426 ms

BL4793_200x120.jpg

BL4793_200x120.jpg

411 ms

BL4794_200x120.jpg

BL4794_200x120.jpg

486 ms

HP2808_200x120.jpg

HP2808_200x120.jpg

518 ms

HP4369_200x120.jpg

HP4369_200x120.jpg

510 ms

HP2801_200x120.jpg

HP2801_200x120.jpg

521 ms

A1397_200x120.jpg

A1397_200x120.jpg

551 ms

HP2804_200x120.jpg

HP2804_200x120.jpg

568 ms

HP2798_200x120.jpg

HP2798_200x120.jpg

671 ms

HP2800_200x120.jpg

HP2800_200x120.jpg

673 ms

Accessibility Review

duesseldorfer-kultur.de accessibility score

68

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

Buttons do not have an accessible name

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

duesseldorfer-kultur.de best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

duesseldorfer-kultur.de SEO score

81

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

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

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Duesseldorfer-kultur.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 Duesseldorfer-kultur.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

duesseldorfer-kultur.de

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