Tools & Wizards About Us
nachhilfe-koeln.de screenshot

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

nachhilfe-koeln.de

nachhilfe-koeln.de - nachhilfe koeln Resources and Information.

Page Load Speed

2.1 sec in total

First Response

713 ms

Resources Loaded

1.2 sec

Page Rendered

113 ms

nachhilfe-koeln.de screenshot

About Website

Welcome to nachhilfe-koeln.de homepage info - get ready to check Nachhilfe Koeln best content right away, or after learning these important things about nachhilfe-koeln.de

nachhilfe-koeln.de is your first and best source for all of the information you’re looking for. From general topics to more of what you would expect to find here, nachhilfe-koeln.de has it all. We hop...

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Key Findings

We analyzed Nachhilfe-koeln.de page load time and found that the first response time was 713 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

nachhilfe-koeln.de performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value0.8 s

100/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.151

76/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

nachhilfe-koeln.de

713 ms

mootools-core.js

483 ms

core.js

224 ms

caption.js

201 ms

offline.css

214 ms

Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Nachhilfe-koeln.de and no external sources were called. The less responsive or slowest element that took the longest time to load (713 ms) belongs to the original domain Nachhilfe-koeln.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 74.5 kB (68%)

Content Size

109.0 kB

After Optimization

34.5 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Nachhilfe-koeln.de main page is 109.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 101.9 kB which makes up the majority of the site volume.

HTML Optimization

-58%

Potential reduce by 1.8 kB

  • Original 3.1 kB
  • After minification 3.0 kB
  • After compression 1.3 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 1.8 kB or 58% of the original size.

JavaScript Optimization

-68%

Potential reduce by 69.7 kB

  • Original 101.9 kB
  • After minification 100.6 kB
  • After compression 32.2 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 69.7 kB or 68% of the original size.

CSS Optimization

-75%

Potential reduce by 3.0 kB

  • Original 4.1 kB
  • After minification 2.8 kB
  • After compression 1.0 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. Nachhilfe-koeln.de needs all CSS files to be minified and compressed as it can save up to 3.0 kB or 75% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nachhilfe Koeln. According to our analytics all requests are already optimized.

Network Requests Diagram

nachhilfe-koeln.de

nachhilfe-koeln.de

713 ms

mootools-core.js

mootools-core.js

483 ms

core.js

core.js

224 ms

caption.js

caption.js

201 ms

offline.css

offline.css

214 ms

general.css

general.css

229 ms

Accessibility Review

nachhilfe-koeln.de accessibility score

63

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.

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

<frame> or <iframe> elements do not have a title

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

nachhilfe-koeln.de best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

nachhilfe-koeln.de SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nachhilfe-koeln.de can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed German language. Our system also found out that Nachhilfe-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

nachhilfe-koeln.de

Open Graph description is not detected on the main page of Nachhilfe 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: