Tools & Wizards About Us
center7.de screenshot

Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

Page Load Speed

879 ms in total

First Response

374 ms

Resources Loaded

504 ms

Page Rendered

1 ms

center7.de screenshot

About Website

Visit center7.de now to see the best up-to-date Center7 content for Australia and also check out these interesting facts you probably never knew about center7.de

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Key Findings

We analyzed Center7.de page load time and found that the first response time was 374 ms and then it took 505 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

center7.de performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value17.3 s

0/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.46

19/100

15%

TTI (Time to Interactive)

Value29.7 s

0/100

10%

Network Requests Diagram

center7.de

374 ms

index.htm

125 ms

Our browser made a total of 2 requests to load all elements on the main page. We found that all of those requests were addressed to Center7.de and no external sources were called. The less responsive or slowest element that took the longest time to load (374 ms) belongs to the original domain Center7.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 805 B (51%)

Content Size

1.6 kB

After Optimization

784 B

  • HTML

In fact, the total size of Center7.de main page is 1.6 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. HTML takes 1.6 kB which makes up the majority of the site volume.

HTML Optimization

-51%

Potential reduce by 805 B

  • Original 1.6 kB
  • After minification 1.6 kB
  • After compression 784 B

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 805 B or 51% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

1

After Optimization

1

  • AJAX

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Center7. According to our analytics all requests are already optimized.

Network Requests Diagram

center7.de

center7.de

374 ms

index.htm

index.htm

125 ms

Accessibility Review

center7.de accessibility score

86

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

Image elements do not have [alt] attributes

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

center7.de best practices score

67

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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

center7.de SEO score

62

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

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Center7.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 Center7.de main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

center7.de

Open Graph description is not detected on the main page of Center7. 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: