Tools & Wizards About Us

Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

cityinfo-koeln.de

Köln: Sights - Hotels - Restaurants - Tipps zur Städtereise Köln

Page Load Speed

3.5 sec in total

First Response

415 ms

Resources Loaded

2.9 sec

Page Rendered

191 ms

About Website

Visit cityinfo-koeln.de now to see the best up-to-date Cityinfo Koeln content for Germany and also check out these interesting facts you probably never knew about cityinfo-koeln.de

Das große Stadtportal für Köln (Cologne). Finden Sie die besten Infos für Ihre Städtereise mit allen Highlights, vielen Insidertipps sowie Top-Hotels und Restaurants – inkl. Koeln-News.

Visit cityinfo-koeln.de

Key Findings

We analyzed Cityinfo-koeln.de page load time and found that the first response time was 415 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

cityinfo-koeln.de performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

52/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.146

77/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

Network Requests Diagram

www.cityinfo-koeln.de

415 ms

jquery-1.7.2.min.js

200 ms

funktionen2.js

375 ms

style3.css

281 ms

sidebar2.js

282 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that all of those requests were addressed to Cityinfo-koeln.de and no external sources were called. The less responsive or slowest element that took the longest time to load (696 ms) belongs to the original domain Cityinfo-koeln.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.7 kB (5%)

Content Size

455.7 kB

After Optimization

431.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cityinfo-koeln.de main page is 455.7 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. 25% of websites need less resources to load. Images take 372.2 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 20.7 kB

  • Original 29.0 kB
  • After minification 28.5 kB
  • After compression 8.3 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 20.7 kB or 71% of the original size.

Image Optimization

-1%

Potential reduce by 3.3 kB

  • Original 372.2 kB
  • After minification 368.8 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. Cityinfo Koeln images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 151 B

  • Original 51.0 kB
  • After minification 51.0 kB
  • After compression 50.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-15%

Potential reduce by 514 B

  • Original 3.5 kB
  • After minification 3.5 kB
  • After compression 3.0 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. Cityinfo-koeln.de needs all CSS files to be minified and compressed as it can save up to 514 B or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (23%)

Requests Now

44

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cityinfo Koeln. 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.

Network Requests Diagram

Accessibility Review

cityinfo-koeln.de accessibility score

66

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

cityinfo-koeln.de best practices score

67

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

cityinfo-koeln.de SEO score

100

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

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cityinfo-koeln.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is German. Our system also found out that Cityinfo-koeln.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 Cityinfo Koeln. 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: