Tools & Wizards About Us
zdfsport.de screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

zdfsport.de

sportstudio - Sport im ZDF online streamen und schauen! - ZDFmediathek

Page Load Speed

7.8 sec in total

First Response

239 ms

Resources Loaded

6.5 sec

Page Rendered

1.1 sec

zdfsport.de screenshot

About Website

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

Aktuelle Sport-News, Livestreams, Liveticker, Ergebnisse, Hintergründe und Sportdokus. Sportstudio verpasst? Aktuelle Sendungen einfach online schauen

Visit zdfsport.de

Key Findings

We analyzed Zdfsport.de page load time and found that the first response time was 239 ms and then it took 7.5 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

zdfsport.de performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value610 ms

49/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

www.zdfsport.de

239 ms

jcarousel.css

55 ms

zdfplayer.min.css

336 ms

liquid.css

55 ms

jquery.fancybox-1.3.4.css

56 ms

Our browser made a total of 349 requests to load all elements on the main page. We found that 38% of them (134 requests) were addressed to the original Zdfsport.de, 51% (179 requests) were made to Module.zdf.de and 5% (19 requests) were made to Wwwdyn.zdf.de. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Zdfsport.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.5 MB (45%)

Content Size

3.2 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zdfsport.de main page is 3.2 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. 70% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 559.7 kB

  • Original 608.4 kB
  • After minification 516.9 kB
  • After compression 48.7 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 91.5 kB, 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 559.7 kB or 92% of the original size.

Image Optimization

-13%

Potential reduce by 228.5 kB

  • Original 1.8 MB
  • After minification 1.5 MB

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. Obviously, ZDF Sport needs image optimization as it can save up to 228.5 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-79%

Potential reduce by 638.9 kB

  • Original 809.1 kB
  • After minification 702.4 kB
  • After compression 170.2 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 638.9 kB or 79% of the original size.

CSS Optimization

-82%

Potential reduce by 32.1 kB

  • Original 39.2 kB
  • After minification 31.7 kB
  • After compression 7.1 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. Zdfsport.de needs all CSS files to be minified and compressed as it can save up to 32.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 62 (20%)

Requests Now

316

After Optimization

254

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 316 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZDF Sport. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.zdfsport.de

www.zdfsport.de

239 ms

jcarousel.css

jcarousel.css

55 ms

zdfplayer.min.css

zdfplayer.min.css

336 ms

liquid.css

liquid.css

55 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

56 ms

socialshareprivacy.css

socialshareprivacy.css

58 ms

sp_data.css

sp_data.css

494 ms

style.css

style.css

88 ms

no-js.css

no-js.css

74 ms

base.css

base.css

79 ms

header.css

header.css

97 ms

footer_miniepg.css

footer_miniepg.css

99 ms

grid.css

grid.css

119 ms

color.css

color.css

121 ms

jquery.ui.autocomplete-1.8.13.css

jquery.ui.autocomplete-1.8.13.css

151 ms

layout.css

layout.css

173 ms

jquery.ui.slider.css

jquery.ui.slider.css

395 ms

paginator.css

paginator.css

161 ms

merkliste.css

merkliste.css

148 ms

widget.css

widget.css

176 ms

jquery.zdfsport_bildgalerie.css

jquery.zdfsport_bildgalerie.css

179 ms

notfound.css

notfound.css

185 ms

modernizr-1.6.min.js

modernizr-1.6.min.js

214 ms

ie_fix.js

ie_fix.js

237 ms

jquery-1.6.2.min.js

jquery-1.6.2.min.js

258 ms

head_fix.js

head_fix.js

208 ms

zdf_miniepg.js

zdf_miniepg.js

255 ms

frontend_own.js

frontend_own.js

261 ms

zdfplayer.min.js

zdfplayer.min.js

704 ms

jquery.placeheld.js

jquery.placeheld.js

302 ms

zdfplayerinitializer.js

zdfplayerinitializer.js

286 ms

spcOverlay.js

spcOverlay.js

402 ms

bildgalerie.init.js

bildgalerie.init.js

274 ms

jquery-ui.min.js

jquery-ui.min.js

356 ms

jquery.init.js

jquery.init.js

321 ms

jquery.scrollTo-min.js

jquery.scrollTo-min.js

328 ms

jquery.url.js

jquery.url.js

332 ms

zdf_dummy.js

zdf_dummy.js

425 ms

iam.js

iam.js

195 ms

zdf_epg.js

zdf_epg.js

400 ms

jquery-ui-1.8.13.custom.min.js

jquery-ui-1.8.13.custom.min.js

490 ms

jquery.jcarousel.min.js

jquery.jcarousel.min.js

398 ms

rss.js

rss.js

591 ms

jquery.fancybox-1.3.4.js

jquery.fancybox-1.3.4.js

476 ms

removeFancyBox.js

removeFancyBox.js

456 ms

smarttag.js

smarttag.js

451 ms

jquery.socialshareprivacy.js

jquery.socialshareprivacy.js

452 ms

script.js

script.js

457 ms

merkliste.js

merkliste.js

449 ms

jquery.zdfsport_bildgalerie.js

jquery.zdfsport_bildgalerie.js

463 ms

ajax_link.js

ajax_link.js

458 ms

script_own.js

script_own.js

443 ms

jquery.ba-postmessage.min.js

jquery.ba-postmessage.min.js

455 ms

playercontrol.js

playercontrol.js

487 ms

swfobject.js

swfobject.js

441 ms

common.js

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458 ms

atinternetinitializer.js

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483 ms

bl-ticker.jpg

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169 ms

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734 ms

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jquery-ui-min-1.8.js

785 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

301 ms

jquery.mousewheel.min.js

jquery.mousewheel.min.js

178 ms

base.css

base.css

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full.css

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414 ms

teaser_zdf_sportextra.png

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277 ms

cl_logo.jpg

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144 ms

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378 ms

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Accessibility Review

zdfsport.de accessibility score

94

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

zdfsport.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

zdfsport.de SEO score

99

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

zdfsport.de

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