Tools & Wizards About Us
koeln-informativ.de screenshot

Report Summary

  • 28

    Performance

    Renders faster than
    48% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

koeln-informativ.de

Köln - DAS Stadtportal mit Firmenverzeichnis, News aus Köln

Page Load Speed

3.9 sec in total

First Response

720 ms

Resources Loaded

2.9 sec

Page Rendered

240 ms

koeln-informativ.de screenshot

About Website

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

Stadtportal für Köln im Bundesland Nordrhein-Westfalen, Firmenbuch für Köln, Sehenswürdigkeiten, Informationen und Neuigkeiten

Visit koeln-informativ.de

Key Findings

We analyzed Koeln-informativ.de page load time and found that the first response time was 720 ms and then it took 3.2 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

koeln-informativ.de performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value7.6 s

26/100

10%

TBT (Total Blocking Time)

Value1,370 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.063

97/100

15%

TTI (Time to Interactive)

Value12.2 s

15/100

10%

Network Requests Diagram

koeln-informativ.de

720 ms

koeln-informativ.de

457 ms

www.koeln-informativ.de

339 ms

www.koeln-informativ.de

491 ms

js

51 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 66% of them (23 requests) were addressed to the original Koeln-informativ.de, 9% (3 requests) were made to Pagead2.googlesyndication.com and 9% (3 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (879 ms) belongs to the original domain Koeln-informativ.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 68.2 kB (7%)

Content Size

963.8 kB

After Optimization

895.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Koeln-informativ.de main page is 963.8 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. 40% of websites need less resources to load. Images take 580.7 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 21.1 kB

  • Original 27.7 kB
  • After minification 27.4 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. 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 21.1 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 14.9 kB

  • Original 580.7 kB
  • After minification 565.9 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. Koeln Informativ images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 32.0 kB

  • Original 353.4 kB
  • After minification 353.4 kB
  • After compression 321.4 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

-14%

Potential reduce by 270 B

  • Original 1.9 kB
  • After minification 1.9 kB
  • After compression 1.6 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. Koeln-informativ.de needs all CSS files to be minified and compressed as it can save up to 270 B or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (17%)

Requests Now

30

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Koeln Informativ. 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.

Network Requests Diagram

koeln-informativ.de

koeln-informativ.de

720 ms

koeln-informativ.de

koeln-informativ.de

457 ms

www.koeln-informativ.de

www.koeln-informativ.de

339 ms

www.koeln-informativ.de

www.koeln-informativ.de

491 ms

js

js

51 ms

adsbygoogle.js

adsbygoogle.js

133 ms

index.css

index.css

185 ms

herzlichwillkommen.jpg

herzlichwillkommen.jpg

588 ms

icon1.jpg

icon1.jpg

475 ms

pfeil.jpg

pfeil.jpg

357 ms

branche2.jpg

branche2.jpg

475 ms

branche3.jpg

branche3.jpg

474 ms

branche4.jpg

branche4.jpg

474 ms

branche5.jpg

branche5.jpg

475 ms

branche6.jpg

branche6.jpg

572 ms

branche7.jpg

branche7.jpg

573 ms

branche8.jpg

branche8.jpg

577 ms

branche11.jpg

branche11.jpg

581 ms

branche9.jpg

branche9.jpg

585 ms

branche1.jpg

branche1.jpg

681 ms

branche12.jpg

branche12.jpg

682 ms

adsbygoogle.js

adsbygoogle.js

99 ms

branche13.jpg

branche13.jpg

655 ms

verkaufsoffene_sonntage.jpg

verkaufsoffene_sonntage.jpg

879 ms

js

js

97 ms

analytics.js

analytics.js

19 ms

collect

collect

54 ms

show_ads_impl.js

show_ads_impl.js

247 ms

css

css

70 ms

background.jpg

background.jpg

690 ms

header.jpg

header.jpg

557 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

24 ms

zrt_lookup.html

zrt_lookup.html

27 ms

ads

ads

360 ms

ads

ads

415 ms

Accessibility Review

koeln-informativ.de accessibility score

83

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

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

Image elements do not have [alt] attributes

Best Practices

koeln-informativ.de 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

High

Page has valid source maps

SEO Factors

koeln-informativ.de SEO score

54

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

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 Koeln-informativ.de 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 Koeln-informativ.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

koeln-informativ.de

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