Tools & Wizards About Us
zellerag.com screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    60% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

zellerag.com

Zeller International | zeller

Page Load Speed

3.4 sec in total

First Response

388 ms

Resources Loaded

2.8 sec

Page Rendered

274 ms

zellerag.com screenshot

About Website

Click here to check amazing Zeller Ag content. Otherwise, check out these important facts you probably never knew about zellerag.com

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Key Findings

We analyzed Zellerag.com page load time and found that the first response time was 388 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

zellerag.com performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

21/100

25%

SI (Speed Index)

Value5.4 s

57/100

10%

TBT (Total Blocking Time)

Value610 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.322

36/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

zellerag.com

388 ms

521 ms

zeller.css

524 ms

vfb-style.min.css

553 ms

zeller-members.css

280 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 84% of them (32 requests) were addressed to the original Zellerag.com, 5% (2 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (736 ms) belongs to the original domain Zellerag.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 754.0 kB (43%)

Content Size

1.7 MB

After Optimization

982.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zellerag.com main page is 1.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 825.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 26.5 kB

  • Original 32.6 kB
  • After minification 30.3 kB
  • After compression 6.1 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 26.5 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 3.2 kB

  • Original 825.0 kB
  • After minification 821.8 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. Zeller Ag images are well optimized though.

JavaScript Optimization

-72%

Potential reduce by 255.8 kB

  • Original 355.5 kB
  • After minification 342.4 kB
  • After compression 99.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 255.8 kB or 72% of the original size.

CSS Optimization

-90%

Potential reduce by 468.4 kB

  • Original 523.0 kB
  • After minification 390.8 kB
  • After compression 54.6 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. Zellerag.com needs all CSS files to be minified and compressed as it can save up to 468.4 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (53%)

Requests Now

32

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zeller Ag. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

zellerag.com

zellerag.com

388 ms

521 ms

zeller.css

zeller.css

524 ms

vfb-style.min.css

vfb-style.min.css

553 ms

zeller-members.css

zeller-members.css

280 ms

zeller.css

zeller.css

654 ms

custom.css

custom.css

281 ms

font-awesome.min.css

font-awesome.min.css

370 ms

masterslider.main.css

masterslider.main.css

645 ms

custom.css

custom.css

372 ms

generic-no-float.css

generic-no-float.css

296 ms

jquery.js

jquery.js

660 ms

jquery-migrate.min.js

jquery-migrate.min.js

463 ms

helpTextPopUp.js

helpTextPopUp.js

404 ms

zeller.js

zeller.js

462 ms

zeller-members.js

zeller-members.js

490 ms

jquery.easing.min.js

jquery.easing.min.js

523 ms

masterslider.min.js

masterslider.min.js

654 ms

css

css

57 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

148 ms

zeller_logo.png

zeller_logo.png

94 ms

blank.gif

blank.gif

95 ms

otc_apotheke_beratung_3_300.jpg

otc_apotheke_beratung_3_300.jpg

736 ms

headline_medical.jpg

headline_medical.jpg

281 ms

headline_vision.jpg

headline_vision.jpg

519 ms

vitaplant_versuchsfeld_messen_1_300.jpg

vitaplant_versuchsfeld_messen_1_300.jpg

650 ms

footer_zeller.jpg

footer_zeller.jpg

267 ms

AdvhXhYgA3dmujksHe6oKALUuEpTyoUstqEm5AMlJo4.ttf

AdvhXhYgA3dmujksHe6oKALUuEpTyoUstqEm5AMlJo4.ttf

37 ms

NBeaBKmA1yw4KFklLc4VJMDdSZkkecOE1hvV7ZHvhyU.ttf

NBeaBKmA1yw4KFklLc4VJMDdSZkkecOE1hvV7ZHvhyU.ttf

52 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

214 ms

analytics.js

analytics.js

42 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

299 ms

collect

collect

16 ms

loading-2.gif

loading-2.gif

181 ms

light-skin-3.png

light-skin-3.png

199 ms

zeller-hauptgebaeude.jpg

zeller-hauptgebaeude.jpg

229 ms

zeller-garten.jpg

zeller-garten.jpg

188 ms

zeller-prospan_de.jpg

zeller-prospan_de.jpg

100 ms

Accessibility Review

zellerag.com accessibility score

88

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

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

zellerag.com best practices score

92

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

Page has valid source maps

SEO Factors

zellerag.com SEO score

91

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zellerag.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Zellerag.com 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

zellerag.com

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