Report Summary

  • 43

    Performance

    Renders faster than
    62% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

koelnsky.com

Eventlocation KölnSKY überragend am Rhein - Ihre Location in Köln

Page Load Speed

2.8 sec in total

First Response

477 ms

Resources Loaded

2 sec

Page Rendered

343 ms

koelnsky.com screenshot

About Website

Click here to check amazing Koelnsky content for Germany. Otherwise, check out these important facts you probably never knew about koelnsky.com

Eventlocation Köln - Traumhafte Aussichten für Ihre Veranstaltungen über den Dächern der Stadt erwarten Sie im KölnSKY am Rhein.

Visit koelnsky.com

Key Findings

We analyzed Koelnsky.com page load time and found that the first response time was 477 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

koelnsky.com performance score

43

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value8.3 s

19/100

10%

TBT (Total Blocking Time)

Value1,330 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

koelnsky.com

477 ms

jquery.min.js

7 ms

koelnsky_css.css

200 ms

all.js

74 ms

panorama_40.jpg

315 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 43% of them (12 requests) were addressed to the original Koelnsky.com, 11% (3 requests) were made to Facebook.com and 7% (2 requests) were made to Staticxx.facebook.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Koelnsky.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 400.4 kB (28%)

Content Size

1.4 MB

After Optimization

1.0 MB

In fact, the total size of Koelnsky.com main page is 1.4 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 961.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.6 kB

  • Original 22.4 kB
  • After minification 18.7 kB
  • After compression 5.7 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 3.7 kB, which is 16% 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 16.6 kB or 74% of the original size.

Image Optimization

-4%

Potential reduce by 42.1 kB

  • Original 961.9 kB
  • After minification 919.8 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. Koelnsky images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 134.6 kB

  • Original 205.6 kB
  • After minification 205.5 kB
  • After compression 71.0 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 134.6 kB or 65% of the original size.

CSS Optimization

-83%

Potential reduce by 207.0 kB

  • Original 249.7 kB
  • After minification 248.5 kB
  • After compression 42.6 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. Koelnsky.com needs all CSS files to be minified and compressed as it can save up to 207.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (20%)

Requests Now

25

After Optimization

20

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koelnsky. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

koelnsky.com accessibility score

92

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-hidden="true"] elements contain focusable descendents

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

koelnsky.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

koelnsky.com SEO score

98

Search Engine Optimization Advices

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Koelnsky.com can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Koelnsky.com 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 Koelnsky. 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: