Access cobosystems.be. Cobosystems - De Belgische Bouwdocumentatie

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

22/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value7.5 s

27/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

cobosystems.be

390 ms

www.cobosystems.be

687 ms

docunet_stats.js

122 ms

swfobject.js

243 ms

utilities.js

245 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 85% of them (71 requests) were addressed to the original Cobosystems.be, 5% (4 requests) were made to S7.addthis.com and 5% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Cobosystems.be.

Content Size

1.4 MB

After Optimization

836.4 kB

In fact, the total size of Cobosystems.be main page is 1.4 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. 45% of websites need less resources to load. Images take 600.4 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 99.1 kB

Original 138.3 kB
After minification 136.1 kB
After compression 39.2 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 99.1 kB or 72% of the original size.

Image Optimization

-7%

Potential reduce by 40.8 kB

Original 600.4 kB
After minification 559.6 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. Cobosystems images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 349.7 kB

Original 578.3 kB
After minification 562.3 kB
After compression 228.6 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 349.7 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 49.5 kB

Original 58.6 kB
After minification 43.8 kB
After compression 9.1 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. Cobosystems.be needs all CSS files to be minified and compressed as it can save up to 49.5 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cobosystems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 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

Form elements do not have associated labels

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

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 doesn't use 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 Cobosystems.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 Cobosystems.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

cobosystems.be

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

Cobosystems - De Belgische Bouwdocumentatie

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

cobosystems.be

www.cobosystems.be

docunet_stats.js

swfobject.js

utilities.js

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

cobosystems.be

www.cobosystems.be

docunet_stats.js

swfobject.js

utilities.js

jquery-ui.css

autocomplete.css

jquery.min.js

jquery.cookie.js

jquery-ui.min.js

jquery.jcarousel.min.js

jcarousel.connected-carousels.js

stepcarousel.js

styles10.css

css

adpage.js

addthis_widget.js

ga.js

lg-share-en.gif

cobo220x100.png

white_pixel.gif

link1-2.jpg

middle90-1.jpg

link3-1.jpg

link2-1.jpg

middle90-2.jpg

link4-1.jpg

lookup_cd251c.jpg

print.gif

empty.gif

favorites.gif

email.gif

Combibeeld1.jpg

duschprofis-in-aktion-tester-header-nl.jpg

techcomlight-skyvault-advertentie%20(800%20x%20533).jpg

noraplan_valua_18x13_08.jpg

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