Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

decs.nl

JDE Professional | Altijd de lekkerste koffie én thee op het werk

Page Load Speed

3.6 sec in total

First Response

803 ms

Resources Loaded

2.6 sec

Page Rendered

214 ms

decs.nl screenshot

About Website

Visit decs.nl now to see the best up-to-date De Cs content and also check out these interesting facts you probably never knew about decs.nl

In de JDE Professional webshop vind je de lekkerste koffie en thee en beste koffiemachines voor op het werk of in de horeca. Direct uit voorraad leverbaar.

Visit decs.nl

Key Findings

We analyzed Decs.nl page load time and found that the first response time was 803 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

decs.nl performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value2,930 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

www.jacobsdouweegbertsprofessional.nl

803 ms

styles.redesign.css

282 ms

vendor.js

755 ms

main.js

515 ms

OtAutoBlock.js

84 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Decs.nl, 9% (3 requests) were made to Cdn.cookielaw.org and 3% (1 request) were made to Cloudstatic.obi4wan.com. The less responsive or slowest element that took the longest time to load (803 ms) relates to the external source Jacobsdouweegbertsprofessional.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 218.7 kB (24%)

Content Size

904.5 kB

After Optimization

685.8 kB

In fact, the total size of Decs.nl main page is 904.5 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. Javascripts take 729.4 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 97.9 kB

  • Original 123.7 kB
  • After minification 107.3 kB
  • After compression 25.8 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 16.4 kB, which is 13% 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 97.9 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 2.3 kB

  • Original 51.4 kB
  • After minification 49.1 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. De Cs images are well optimized though.

JavaScript Optimization

-16%

Potential reduce by 118.4 kB

  • Original 729.4 kB
  • After minification 729.4 kB
  • After compression 611.0 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 118.4 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (30%)

Requests Now

23

After Optimization

16

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Cs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

decs.nl accessibility score

68

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

Heading elements are not in a sequentially-descending order

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

decs.nl 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

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

decs.nl SEO score

71

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 doesn't use legible font sizes

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 Decs.nl 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 Decs.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

Open Graph data is detected on the main page of De Cs. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: