Access ziber.eu. Ziber: Oudercommunicatie voor opvang & onderwijs.

Report Summary

About Website

Welcome to ziber.eu homepage info - get ready to check Ziber best content for Netherlands right away, or after learning these important things about ziber.eu

Ziber biedt scholen en kinderopvangorganisaties moderne apps en tools voor heldere communicatie met ouders en teamleden. Ontdek de Kwieb ouderapp, de Team app, digitale infoschermen en API-integraties...

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name

value

score

weighting

FCP (First Contentful Paint)

Value6.7 s

2/100

10%

LCP (Largest Contentful Paint)

Value14.4 s

0/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value790 ms

37/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value15.6 s

6/100

10%

ziber.eu

611 ms

app.c63aa4191c3be2b8fa5e.css

289 ms

vendors.8aee35b88323e2b09476.css

277 ms

runtime.ea60cb3365acddb92204.js

277 ms

vendors.028f58554e9ec247d03e.js

564 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 50% of them (16 requests) were addressed to the original Ziber.eu, 16% (5 requests) were made to Gstatic.com and 13% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (611 ms) belongs to the original domain Ziber.eu.

Content Size

1.1 MB

After Optimization

895.7 kB

In fact, the total size of Ziber.eu main page is 1.1 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. 50% of websites need less resources to load. Images take 534.5 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 78.0 kB

Original 91.6 kB
After minification 77.6 kB
After compression 13.5 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 14.0 kB, which is 15% 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 78.0 kB or 85% of the original size.

Image Optimization

-11%

Potential reduce by 57.5 kB

Original 534.5 kB
After minification 477.0 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. Obviously, Ziber needs image optimization as it can save up to 57.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-5%

Potential reduce by 21.1 kB

Original 391.1 kB
After minification 391.1 kB
After compression 370.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-29%

Potential reduce by 14.2 kB

Original 49.4 kB
After minification 49.4 kB
After compression 35.2 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. Ziber.eu needs all CSS files to be minified and compressed as it can save up to 14.2 kB or 29% of the original size.

Requests Now

After Optimization

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ziber. 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 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 the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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.

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

NL
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ziber.eu 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 Ziber.eu 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 Ziber. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: