Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

keller-sports.be

KELLER SPORTS [BE] - Bestel de beste sportproducten.

Page Load Speed

3.1 sec in total

First Response

215 ms

Resources Loaded

1.7 sec

Page Rendered

1.2 sec

keller-sports.be screenshot

About Website

Welcome to keller-sports.be homepage info - get ready to check KELLER SPORTS best content for Belgium right away, or after learning these important things about keller-sports.be

Kleding, schoenen, uitrusting ➤⭐ meer dan 150 topmerken voor uw sport ➤10% KELLER Premium korting*✨ ➤Gratis verzending vanaf 75€ ✅

Visit keller-sports.be

Key Findings

We analyzed Keller-sports.be page load time and found that the first response time was 215 ms and then it took 2.9 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

keller-sports.be performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value13.8 s

0/100

25%

SI (Speed Index)

Value12.3 s

3/100

10%

TBT (Total Blocking Time)

Value30,880 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.097

90/100

15%

TTI (Time to Interactive)

Value38.7 s

0/100

10%

Network Requests Diagram

keller-sports.be

215 ms

www.keller-sports.be

453 ms

icons.min.css

233 ms

typography.min.css

32 ms

home.min.css

410 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 58% of them (21 requests) were addressed to the original Keller-sports.be, 28% (10 requests) were made to Image.keller-sports.com and 8% (3 requests) were made to App.usercentrics.eu. The less responsive or slowest element that took the longest time to load (531 ms) belongs to the original domain Keller-sports.be.

Page Optimization Overview & Recommendations

Page size can be reduced by 364.9 kB (32%)

Content Size

1.2 MB

After Optimization

792.3 kB

In fact, the total size of Keller-sports.be main page is 1.2 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. 65% of websites need less resources to load. Images take 675.2 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 354.8 kB

  • Original 430.1 kB
  • After minification 399.5 kB
  • After compression 75.4 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 354.8 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 35 B

  • Original 675.2 kB
  • After minification 675.1 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. KELLER SPORTS images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 24 B

  • Original 979 B
  • After minification 979 B
  • After compression 955 B

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

-20%

Potential reduce by 10.1 kB

  • Original 50.9 kB
  • After minification 50.9 kB
  • After compression 40.9 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. Keller-sports.be needs all CSS files to be minified and compressed as it can save up to 10.1 kB or 20% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (41%)

Requests Now

27

After Optimization

16

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KELLER SPORTS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

keller-sports.be accessibility score

61

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

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

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

keller-sports.be 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

keller-sports.be SEO score

85

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

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Keller-sports.be can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Keller-sports.be 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 KELLER SPORTS. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: