Report Summary

  • 27

    Performance

    Renders faster than
    47% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 81

    SEO

    Google-friendlier than
    43% of websites

nen1010.cobouw.nl

Kennisbank Installatie Journaal | Kennisbank Installatie Journaal

Page Load Speed

4.4 sec in total

First Response

469 ms

Resources Loaded

3.8 sec

Page Rendered

153 ms

nen1010.cobouw.nl screenshot

About Website

Visit nen1010.cobouw.nl now to see the best up-to-date Nen 1010 Cobouw content for Netherlands and also check out these interesting facts you probably never knew about nen1010.cobouw.nl

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Key Findings

We analyzed Nen1010.cobouw.nl page load time and found that the first response time was 469 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

nen1010.cobouw.nl performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value1,600 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

nen1010.cobouw.nl

469 ms

artifactreceiver

494 ms

nen1010.cobouw.nl

566 ms

css_ac6bf290d83a3b72d85a630282e9b22b.css

254 ms

js_f1ef71ea15e1fada30b547aec49bbf97.js

723 ms

Our browser made a total of 42 requests to load all elements on the main page. We found that 64% of them (27 requests) were addressed to the original Nen1010.cobouw.nl, 10% (4 requests) were made to Google-analytics.com and 5% (2 requests) were made to Cookie-info.bimmedia.nl. The less responsive or slowest element that took the longest time to load (723 ms) belongs to the original domain Nen1010.cobouw.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 56.5 kB (60%)

Content Size

94.3 kB

After Optimization

37.8 kB

In fact, the total size of Nen1010.cobouw.nl main page is 94.3 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. 35% of websites need less resources to load. Javascripts take 63.1 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 20.0 kB

  • Original 27.3 kB
  • After minification 24.9 kB
  • After compression 7.4 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 20.0 kB or 73% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 3.2 kB
  • After minification 3.2 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. Nen 1010 Cobouw images are well optimized though.

JavaScript Optimization

-58%

Potential reduce by 36.3 kB

  • Original 63.1 kB
  • After minification 62.1 kB
  • After compression 26.8 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 36.3 kB or 58% of the original size.

CSS Optimization

-30%

Potential reduce by 198 B

  • Original 666 B
  • After minification 646 B
  • After compression 468 B

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. Nen1010.cobouw.nl needs all CSS files to be minified and compressed as it can save up to 198 B or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (42%)

Requests Now

38

After Optimization

22

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nen 1010 Cobouw. 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.

Accessibility Review

nen1010.cobouw.nl accessibility score

87

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

button, link, and menuitem elements do not have accessible names.

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

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

Best Practices

nen1010.cobouw.nl best practices score

83

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

Page has valid source maps

SEO Factors

nen1010.cobouw.nl SEO score

81

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

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 Nen1010.cobouw.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 Nen1010.cobouw.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 description is not detected on the main page of Nen 1010 Cobouw. 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: