Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

vitamin.de

Centrum - Ihr Partner für einen gesunden Lebensstil

Page Load Speed

1.2 sec in total

First Response

86 ms

Resources Loaded

944 ms

Page Rendered

206 ms

About Website

Welcome to vitamin.de homepage info - get ready to check Vitamin best content for Germany right away, or after learning these important things about vitamin.de

Centrum verwendet hochqualitative Mikronährstoffe. Komplettversorgung von A bis Zink bis hin zu gezielten Formulierungen für bestimmte Bedürfnisse.

Visit vitamin.de

Key Findings

We analyzed Vitamin.de page load time and found that the first response time was 86 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

vitamin.de performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value1,580 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.377

28/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

www.centrum-online.de

86 ms

www.centrum-online.de

75 ms

design.default.bootstrap.v0-0-1.ts202405201747.css

35 ms

head.v0-0-1.ts202405201827.js

128 ms

buynow-button.js

400 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Vitamin.de, 15% (4 requests) were made to Centrum-online.de and 15% (4 requests) were made to A-cf65.ch-static.com. The less responsive or slowest element that took the longest time to load (400 ms) relates to the external source Webcomponent.buynowsw.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 133.1 kB (17%)

Content Size

779.2 kB

After Optimization

646.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vitamin.de main page is 779.2 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. 55% of websites need less resources to load. Images take 335.4 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 122.9 kB

  • Original 137.0 kB
  • After minification 108.9 kB
  • After compression 14.0 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 28.1 kB, which is 21% 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 122.9 kB or 90% of the original size.

Image Optimization

-0%

Potential reduce by 506 B

  • Original 335.4 kB
  • After minification 334.9 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. Vitamin images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 760 B

  • Original 170.8 kB
  • After minification 170.8 kB
  • After compression 170.0 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

-7%

Potential reduce by 8.9 kB

  • Original 136.0 kB
  • After minification 136.0 kB
  • After compression 127.1 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. Vitamin.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (16%)

Requests Now

25

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vitamin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

vitamin.de accessibility score

89

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

vitamin.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

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vitamin.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 Vitamin.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 Vitamin.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 Vitamin. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: