Tools & Wizards About Us
ziis.de screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 58

    Accessibility

    Visual factors better than
    that of 25% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

ziis.de

ZiiS - Zahnrztliche internet information Services

Page Load Speed

1.6 sec in total

First Response

401 ms

Resources Loaded

1.1 sec

Page Rendered

71 ms

ziis.de screenshot

About Website

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

Darstellung zahnrztlicher Inhalte im Internet, regelmig erscheinender ZahnNewsLetter fr zahnmedizinisch interessierte Laien, zahnmedizinisches Fachpersonal und Studenten der Zahnmedizin

Visit ziis.de

Key Findings

We analyzed Ziis.de page load time and found that the first response time was 401 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

ziis.de performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

98/100

10%

LCP (Largest Contentful Paint)

Value1.4 s

100/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.4 s

100/100

10%

Network Requests Diagram

ziis.de

401 ms

ziis.de

426 ms

kopi1110.css

206 ms

hinweis3.jpg

308 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to Ziis.de and no external sources were called. The less responsive or slowest element that took the longest time to load (426 ms) belongs to the original domain Ziis.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.3 kB (84%)

Content Size

26.6 kB

After Optimization

4.3 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Ziis.de main page is 26.6 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. CSS take 23.0 kB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 2.0 kB

  • Original 3.2 kB
  • After minification 2.7 kB
  • After compression 1.2 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 491 B, which is 15% 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 2.0 kB or 62% of the original size.

Image Optimization

-5%

Potential reduce by 19 B

  • Original 396 B
  • After minification 377 B

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. ZiiS images are well optimized though.

CSS Optimization

-88%

Potential reduce by 20.3 kB

  • Original 23.0 kB
  • After minification 18.2 kB
  • After compression 2.7 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. Ziis.de needs all CSS files to be minified and compressed as it can save up to 20.3 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

2

After Optimization

2

  • Images
  • CSS

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZiiS. According to our analytics all requests are already optimized.

Network Requests Diagram

ziis.de

ziis.de

401 ms

ziis.de

ziis.de

426 ms

kopi1110.css

kopi1110.css

206 ms

hinweis3.jpg

hinweis3.jpg

308 ms

Accessibility Review

ziis.de accessibility score

58

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

ziis.de best practices score

50

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

High

Serves images with low resolution

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

ziis.de SEO score

67

Search Engine Optimization Advices

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

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ziis.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 Ziis.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

ziis.de

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