Access jdsports.nl. Sneakers, Sportkleding & Accessoires Heren, Dames & Kids

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value44.7 s

0/100

25%

SI (Speed Index)

Value10.5 s

7/100

10%

TBT (Total Blocking Time)

Value1,070 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.279

43/100

15%

TTI (Time to Interactive)

Value15.5 s

7/100

10%

www.jdsports.nl

982 ms

fonts.css

114 ms

Bootstrap.js

49 ms

deployment.js

50 ms

template.css

175 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 35% of them (37 requests) were addressed to the original Jdsports.nl, 18% (19 requests) were made to Jdsports-client-resources.s3.amazonaws.com and 15% (16 requests) were made to . The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source Jdsports-client-resources.s3-eu-west-1.amazonaws.com.

Content Size

2.8 MB

After Optimization

1.5 MB

In fact, the total size of Jdsports.nl main page is 2.8 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. 55% of websites need less resources to load. CSS take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 97.7 kB

Original 113.0 kB
After minification 75.9 kB
After compression 15.3 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 37.2 kB, which is 33% 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 97.7 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 28.0 kB

Original 756.7 kB
After minification 728.8 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. JD Sports images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 547.3 kB

Original 831.4 kB
After minification 781.1 kB
After compression 284.1 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 547.3 kB or 66% of the original size.

CSS Optimization

-56%

Potential reduce by 607.4 kB

Original 1.1 MB
After minification 1.1 MB
After compression 484.4 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. Jdsports.nl needs all CSS files to be minified and compressed as it can save up to 607.4 kB or 56% of the original size.

Requests Now

After Optimization

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JD 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 34 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

NL
Language Claimed

N/A
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jdsports.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Jdsports.nl 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

jdsports.nl

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Sneakers, Sportkleding & Accessoires Heren, Dames & Kids - JD Sports Nederland

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.jdsports.nl

fonts.css

Bootstrap.js

deployment.js

template.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.jdsports.nl

fonts.css

Bootstrap.js

deployment.js

template.css

bespoke.css

dropdown.css

colorbox.css

tabs.css

popup.css

buttons.css

mini-basket.css

quicklook.css

home.css

jquery.min.js

jquery-ui.min.js

jquery.carouFredSel-6.2.0.js

jquery.livequery.js

jquery.colorbox-min.js

config.js

smart-2.9.min.js

jquery.aurora.jsmart.js

generic.js

custom.js

725B3C4740B8ADBD9.css

jquery.easing.1.2.js

jquery.JDSlider.js

entry.js

serverComponent.php

e49c743e274eec35901d9b521ccade40.js

custom.js

ga.js

delivery-banner-dividers.png

wrap%20up%20bar.jpg

questionCircle.png

template_printed_header.png

logo.png

search.png

minibasket.png

jd-master-sprite-sheet.png

logo-set-de-nl.png

norton-logo.png

Wrap_Up_Bar-2_WOMENS.jpg