Tools & Wizards About Us
driestar-educatief.nl screenshot

Report Summary

  • 56

    Performance

    Renders faster than
    73% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

driestar-educatief.nl

Driestar educatief | het praktijkgerichte kenniscentrum - Driestar educatief

Page Load Speed

3.2 sec in total

First Response

273 ms

Resources Loaded

2.7 sec

Page Rendered

240 ms

driestar-educatief.nl screenshot

About Website

Welcome to driestar-educatief.nl homepage info - get ready to check Driestar Educatief best content for Netherlands right away, or after learning these important things about driestar-educatief.nl

Driestar educatief is een praktijkgericht kenniscentrum dat een inspirerende bijdrage levert aan het christelijk onderwijs in binnen- en buitenland.

Visit driestar-educatief.nl

Key Findings

We analyzed Driestar-educatief.nl page load time and found that the first response time was 273 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

driestar-educatief.nl performance score

56

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value5.7 s

51/100

10%

TBT (Total Blocking Time)

Value220 ms

88/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

driestar-educatief.nl

273 ms

home

765 ms

css

71 ms

style.css

327 ms

editor.css

269 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 59% of them (24 requests) were addressed to the original Driestar-educatief.nl, 12% (5 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (765 ms) belongs to the original domain Driestar-educatief.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 425.8 kB (41%)

Content Size

1.0 MB

After Optimization

613.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Driestar-educatief.nl main page is 1.0 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. Images take 464.9 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 48.7 kB

  • Original 62.4 kB
  • After minification 57.4 kB
  • After compression 13.7 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 48.7 kB or 78% of the original size.

Image Optimization

-6%

Potential reduce by 28.9 kB

  • Original 464.9 kB
  • After minification 436.0 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. Driestar Educatief images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 197.8 kB

  • Original 315.0 kB
  • After minification 295.2 kB
  • After compression 117.3 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 197.8 kB or 63% of the original size.

CSS Optimization

-76%

Potential reduce by 150.5 kB

  • Original 197.2 kB
  • After minification 152.7 kB
  • After compression 46.7 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. Driestar-educatief.nl needs all CSS files to be minified and compressed as it can save up to 150.5 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (42%)

Requests Now

33

After Optimization

19

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Driestar Educatief. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

driestar-educatief.nl

driestar-educatief.nl

273 ms

home

home

765 ms

css

css

71 ms

style.css

style.css

327 ms

editor.css

editor.css

269 ms

medium.css

medium.css

391 ms

WebResource.axd

WebResource.axd

367 ms

ScriptResource.axd

ScriptResource.axd

462 ms

ScriptResource.axd

ScriptResource.axd

369 ms

jquery.min.js

jquery.min.js

42 ms

browser.js

browser.js

354 ms

plugins.js

plugins.js

434 ms

driestar.js

driestar.js

553 ms

bg-dotted-large.png

bg-dotted-large.png

487 ms

logo-driestar-educatief.svg

logo-driestar-educatief.svg

540 ms

carr_peuterdag.jpg

carr_peuterdag.jpg

453 ms

car_roeping-in-je-werk.jpg

car_roeping-in-je-werk.jpg

158 ms

symposium_gedrag_Car.jpg

symposium_gedrag_Car.jpg

377 ms

opendag2015_car.jpg

opendag2015_car.jpg

449 ms

Bronwijzer.jpg

Bronwijzer.jpg

375 ms

vo_godsdienst.jpg

vo_godsdienst.jpg

484 ms

seksuele_vorming_1.jpg

seksuele_vorming_1.jpg

455 ms

Foto-Martijn-Roggeveen-kopie-1.jpg

Foto-Martijn-Roggeveen-kopie-1.jpg

563 ms

the-smile.svg

the-smile.svg

457 ms

bg-curves-slideshow-sprite.svg

bg-curves-slideshow-sprite.svg

455 ms

analytics.js

analytics.js

156 ms

v0SdcGFAl2aezM9Vq_aFTQ.ttf

v0SdcGFAl2aezM9Vq_aFTQ.ttf

218 ms

nj47mAZe0mYUIySgfn0wpQ.ttf

nj47mAZe0mYUIySgfn0wpQ.ttf

250 ms

DvlFBScY1r-FMtZSYIYoYw.ttf

DvlFBScY1r-FMtZSYIYoYw.ttf

299 ms

driestar-icons-webfont.woff

driestar-icons-webfont.woff

416 ms

LqowQDslGv4DmUBAfWa2Vw.ttf

LqowQDslGv4DmUBAfWa2Vw.ttf

298 ms

HkF_qI1x_noxlxhrhMQYEKCWcynf_cDxXwCLxiixG1c.ttf

HkF_qI1x_noxlxhrhMQYEKCWcynf_cDxXwCLxiixG1c.ttf

322 ms

all.js

all.js

295 ms

widgets.js

widgets.js

188 ms

undefined

undefined

214 ms

ga.js

ga.js

167 ms

collect

collect

74 ms

__utm.gif

__utm.gif

40 ms

179 ms

xd_arbiter.php

xd_arbiter.php

133 ms

ping

ping

97 ms

Accessibility Review

driestar-educatief.nl accessibility score

61

Accessibility Issues

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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>).

Best Practices

driestar-educatief.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

SEO Factors

driestar-educatief.nl SEO score

90

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

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Driestar-educatief.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 Driestar-educatief.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

driestar-educatief.nl

Open Graph description is not detected on the main page of Driestar Educatief. 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: