Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

contra.de

CONTRA – Der große Onlineshop für gute Tischtennisartikel

Page Load Speed

3.1 sec in total

First Response

448 ms

Resources Loaded

2.4 sec

Page Rendered

246 ms

About Website

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

Qualitätsmarken und Expressversand: Beläge, Hölzer, Bälle und viel mehr, entdecke Tischtennisprodukte bei CONTRA.

Visit contra.de

Key Findings

We analyzed Contra.de page load time and found that the first response time was 448 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

contra.de performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value13.9 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value770 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.268

46/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

contra.de

448 ms

stylesheet.css

346 ms

mootools.css

343 ms

mootools.txt

544 ms

jquery-1.7.2.min.js

445 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 93% of them (53 requests) were addressed to the original Contra.de, 4% (2 requests) were made to Google-analytics.com and 4% (2 requests) were made to Api.ehi-siegel.de. The less responsive or slowest element that took the longest time to load (781 ms) belongs to the original domain Contra.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 257.5 kB (34%)

Content Size

749.2 kB

After Optimization

491.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Contra.de main page is 749.2 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. 40% of websites need less resources to load. Images take 395.2 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 63.6 kB

  • Original 73.7 kB
  • After minification 51.4 kB
  • After compression 10.1 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. This page needs HTML code to be minified as it can gain 22.3 kB, which is 30% 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 63.6 kB or 86% of the original size.

Image Optimization

-3%

Potential reduce by 13.3 kB

  • Original 395.2 kB
  • After minification 381.8 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. CONTRA images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 136.3 kB

  • Original 228.6 kB
  • After minification 224.4 kB
  • After compression 92.3 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 136.3 kB or 60% of the original size.

CSS Optimization

-86%

Potential reduce by 44.3 kB

  • Original 51.8 kB
  • After minification 37.3 kB
  • After compression 7.5 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. Contra.de needs all CSS files to be minified and compressed as it can save up to 44.3 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (41%)

Requests Now

56

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 56 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CONTRA. 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 as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

contra.de accessibility score

73

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

contra.de best practices score

58

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

Displays images with incorrect aspect ratio

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

contra.de SEO score

75

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Contra.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 Contra.de main page’s claimed encoding is iso-8859-1. 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

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