Tools & Wizards About Us
tennislife.at screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

tennislife.at

Online Tennisshop mit Tennisschläger, Tennissaiten, Tennisbälle und Tennistaschen.

Page Load Speed

2.8 sec in total

First Response

429 ms

Resources Loaded

2.1 sec

Page Rendered

348 ms

tennislife.at screenshot

About Website

Click here to check amazing Tennislife content. Otherwise, check out these important facts you probably never knew about tennislife.at

Günstige Tennisausrüstung mit Experten-Beratung - für Tennisschläger, Tennistaschen, Tennisbälle und Tennissaiten, Tennisschuhe und weitere Tennisartikeln, Günstige Tennisausrüstung mit Experten-Bera...

Visit tennislife.at

Key Findings

We analyzed Tennislife.at page load time and found that the first response time was 429 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

tennislife.at performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

2/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value1,400 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.38

27/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

tennislife.at

429 ms

css.css

101 ms

js.js

197 ms

prototype.js

299 ms

scriptaculous.js

198 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 64% of them (44 requests) were addressed to the original Tennislife.at, 33% (23 requests) were made to Tenislife.cz and 3% (2 requests) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Tenislife.cz.

Page Optimization Overview & Recommendations

Page size can be reduced by 293.3 kB (51%)

Content Size

576.0 kB

After Optimization

282.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tennislife.at main page is 576.0 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. 30% of websites need less resources to load. Images take 280.7 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 49.4 kB

  • Original 57.4 kB
  • After minification 53.5 kB
  • After compression 7.9 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 49.4 kB or 86% of the original size.

Image Optimization

-23%

Potential reduce by 64.4 kB

  • Original 280.7 kB
  • After minification 216.3 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. Obviously, Tennislife needs image optimization as it can save up to 64.4 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 148.3 kB

  • Original 200.9 kB
  • After minification 155.4 kB
  • After compression 52.6 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 148.3 kB or 74% of the original size.

CSS Optimization

-84%

Potential reduce by 31.2 kB

  • Original 37.1 kB
  • After minification 27.0 kB
  • After compression 5.9 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. Tennislife.at needs all CSS files to be minified and compressed as it can save up to 31.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (39%)

Requests Now

67

After Optimization

41

  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tennislife. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tennislife.at

tennislife.at

429 ms

css.css

css.css

101 ms

js.js

js.js

197 ms

prototype.js

prototype.js

299 ms

scriptaculous.js

scriptaculous.js

198 ms

md5.js

md5.js

199 ms

effects.js

effects.js

102 ms

t_pic2733-1.jpg

t_pic2733-1.jpg

303 ms

body-bg.gif

body-bg.gif

112 ms

cross.png

cross.png

116 ms

cb.gif

cb.gif

112 ms

ball-transp.png

ball-transp.png

385 ms

ASICS.jpg

ASICS.jpg

111 ms

t_pic2751-1.jpg

t_pic2751-1.jpg

370 ms

t_pic2732-1.jpg

t_pic2732-1.jpg

454 ms

t_pic2731-1.jpg

t_pic2731-1.jpg

649 ms

t_pic2797-1.jpg

t_pic2797-1.jpg

789 ms

t_pic1978-1.jpg

t_pic1978-1.jpg

1208 ms

t_pic2723-1.jpg

t_pic2723-1.jpg

394 ms

t_pic2714-1.jpg

t_pic2714-1.jpg

464 ms

t_pic1757-1.jpg

t_pic1757-1.jpg

490 ms

t_pic2761-1.jpg

t_pic2761-1.jpg

547 ms

t_pic2721-1.jpg

t_pic2721-1.jpg

559 ms

t_pic2746-1.jpg

t_pic2746-1.jpg

585 ms

t_pic1964-1.jpg

t_pic1964-1.jpg

643 ms

t_pic2781-1.jpg

t_pic2781-1.jpg

654 ms

t_pic2792-1.jpg

t_pic2792-1.jpg

680 ms

t_pic2717-1.jpg

t_pic2717-1.jpg

738 ms

t_pic2347-1.jpg

t_pic2347-1.jpg

743 ms

t_pic2400-1.jpg

t_pic2400-1.jpg

751 ms

t_pic2747-1.jpg

t_pic2747-1.jpg

777 ms

t_pic2741-1.jpg

t_pic2741-1.jpg

833 ms

t_pic2748-1.jpg

t_pic2748-1.jpg

839 ms

t_pic2588-1.jpg

t_pic2588-1.jpg

845 ms

t_pic2737-1.jpg

t_pic2737-1.jpg

872 ms

header-bg.gif

header-bg.gif

176 ms

head-bg.png

head-bg.png

176 ms

menu-bg.gif

menu-bg.gif

174 ms

en.gif

en.gif

190 ms

de.gif

de.gif

192 ms

cz.gif

cz.gif

269 ms

menu-a.gif

menu-a.gif

270 ms

menu-left-bg.gif

menu-left-bg.gif

271 ms

menu-left-nadpis.gif

menu-left-nadpis.gif

288 ms

menu-left-sipka.gif

menu-left-sipka.gif

288 ms

menu-left-sipka-vyprodej.gif

menu-left-sipka-vyprodej.gif

365 ms

newsletter.gif

newsletter.gif

368 ms

input-bg.gif

input-bg.gif

369 ms

potvrdit_btn.gif

potvrdit_btn.gif

384 ms

akce.png

akce.png

382 ms

new.png

new.png

456 ms

sale25.png

sale25.png

555 ms

zoom.gif

zoom.gif

464 ms

podrobnosti-sipka.gif

podrobnosti-sipka.gif

465 ms

dokosiku.gif

dokosiku.gif

477 ms

najit-nadpis.gif

najit-nadpis.gif

480 ms

najit_btn.gif

najit_btn.gif

550 ms

login-nadpis.gif

login-nadpis.gif

561 ms

login_btn.gif

login_btn.gif

564 ms

nastip-nadpis.gif

nastip-nadpis.gif

573 ms

hotline.gif

hotline.gif

578 ms

nejprodej.gif

nejprodej.gif

648 ms

news.gif

news.gif

650 ms

navody-bg.gif

navody-bg.gif

658 ms

menu-left-sipka-orange.gif

menu-left-sipka-orange.gif

660 ms

grafique.gif

grafique.gif

666 ms

dc.js

dc.js

39 ms

__utm.gif

__utm.gif

12 ms

print.css

print.css

99 ms

Accessibility Review

tennislife.at accessibility score

69

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

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

[id] attributes on active, focusable elements are not unique

High

Heading elements are not in a sequentially-descending order

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

tennislife.at best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

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

Page has valid source maps

SEO Factors

tennislife.at SEO score

83

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

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 Tennislife.at 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 Tennislife.at 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

tennislife.at

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