Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

kemian.de

Externer Datenschutzbeauftragter - Datenschutz aus Leipzig | Kemian

Page Load Speed

9.7 sec in total

First Response

334 ms

Resources Loaded

9.2 sec

Page Rendered

204 ms

kemian.de screenshot

About Website

Click here to check amazing Kemian content. Otherwise, check out these important facts you probably never knew about kemian.de

Als zertifizierter (udisZert, DSB-TÜV, DSA-TÜV), externer Datenschutzbeauftragter setzen wir gemeinsam mit Ihnen die Vorgaben der nationalen und internationalen Datenschutzgesetze praktisch und fachku...

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Key Findings

We analyzed Kemian.de page load time and found that the first response time was 334 ms and then it took 9.4 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

kemian.de performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value11.7 s

4/100

10%

TBT (Total Blocking Time)

Value150 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

kemian.de

334 ms

www.kemian.de

1024 ms

fgrbj.css

453 ms

cbglr.css

322 ms

4ie1x.js

434 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that all of those requests were addressed to Kemian.de and no external sources were called. The less responsive or slowest element that took the longest time to load (4.5 sec) belongs to the original domain Kemian.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 69.4 kB (7%)

Content Size

927.9 kB

After Optimization

858.4 kB

In fact, the total size of Kemian.de main page is 927.9 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. 20% of websites need less resources to load. Images take 488.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 66.4 kB

  • Original 83.6 kB
  • After minification 82.8 kB
  • After compression 17.3 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 66.4 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 2.7 kB

  • Original 488.9 kB
  • After minification 486.2 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. Kemian images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 24 B

  • Original 239.7 kB
  • After minification 239.7 kB
  • After compression 239.7 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

-0%

Potential reduce by 345 B

  • Original 115.6 kB
  • After minification 115.6 kB
  • After compression 115.3 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. Kemian.de has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kemian. According to our analytics all requests are already optimized.

Accessibility Review

kemian.de accessibility score

96

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

kemian.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

kemian.de SEO score

91

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Kemian.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 Kemian.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 data is detected on the main page of Kemian. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: