3.6 sec in total
378 ms
2.9 sec
341 ms
Welcome to zwijsencollege.nl homepage info - get ready to check Zwijsen College best content for Netherlands right away, or after learning these important things about zwijsencollege.nl
Welkom op de website van het Zwijsen College in Veghel, een kleurrijke school voor havo en vwo. In een modern schoolgebouw bieden we eigentijds onderwijs.
Visit zwijsencollege.nlWe analyzed Zwijsencollege.nl page load time and found that the first response time was 378 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster. This domain responded with an error, which can significantly jeopardize Zwijsencollege.nl rating and web reputation
zwijsencollege.nl performance score
name
value
score
weighting
Value2.7 s
59/100
10%
Value7.9 s
3/100
25%
Value7.1 s
31/100
10%
Value200 ms
90/100
30%
Value0.003
100/100
15%
Value10.9 s
22/100
10%
378 ms
1248 ms
280 ms
302 ms
482 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that 89% of them (48 requests) were addressed to the original Zwijsencollege.nl, 4% (2 requests) were made to Ssl.google-analytics.com and 4% (2 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Zwijsencollege.nl.
Page size can be reduced by 473.5 kB (45%)
1.1 MB
580.6 kB
In fact, the total size of Zwijsencollege.nl 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. 40% of websites need less resources to load. Images take 684.3 kB which makes up the majority of the site volume.
Potential reduce by 30.6 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 4.4 kB, which is 11% 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 30.6 kB or 77% of the original size.
Potential reduce by 197.6 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. Obviously, Zwijsen College needs image optimization as it can save up to 197.6 kB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 177.8 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 177.8 kB or 71% of the original size.
Potential reduce by 67.4 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. Zwijsencollege.nl needs all CSS files to be minified and compressed as it can save up to 67.4 kB or 83% of the original size.
Number of requests can be reduced by 20 (41%)
49
29
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zwijsen College. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
zwijsencollege.nl
378 ms
www.zwijsencollege.nl
1248 ms
default.css
280 ms
module.css
302 ms
skin.css
482 ms
jquery.min.js
63 ms
WebResource.axd
300 ms
styles.css
310 ms
Telerik.Web.UI.WebResource.axd
603 ms
dnncore.js
384 ms
WebResource.axd
749 ms
initWidgets.js
320 ms
skin.css
509 ms
css
25 ms
startupscript.js
433 ms
ga.js
57 ms
backgroundeffect.jpg
205 ms
zwijsen_logo.png
121 ms
MakeThumbnail.aspx
117 ms
MakeThumbnail.aspx
169 ms
MakeThumbnail.aspx
179 ms
MakeThumbnail.aspx
194 ms
banner-links-onder.png
236 ms
logo-scholenopdekaart.png
277 ms
Zwijsen-Collegetour-16042016.png
278 ms
icoon_paperclip_schoolgids_.png
386 ms
icoon_paperclip_twitter_.png
327 ms
icoon_paperclip_facebook_.png
520 ms
icoon_paperclip_youtube_.png
362 ms
icoon_paperclip_e-mail.png
373 ms
VC_Banner-GSK-460x60px_2016-fruit.jpg
377 ms
OMO_100jaar_350PX.png
410 ms
__utm.gif
26 ms
contentbackground.png
338 ms
homepagebackground.jpg
370 ms
zwijsen_slogan.png
377 ms
inputbackground.png
374 ms
headerbackground.png
397 ms
leerlingen.png
530 ms
button_leerlingen.png
463 ms
ouders.png
660 ms
button_ouders.png
473 ms
medewerkers.png
501 ms
button_medewerkers.png
505 ms
menubackground.png
566 ms
menuseparator.png
442 ms
dottedline.png
448 ms
button_archief.png
452 ms
topcontentbackground.png
479 ms
agendabackground.jpg
538 ms
agendalink.png
523 ms
button_completeagenda.png
531 ms
eFfAHNfFT0YtF77QmRKRj_esZW2xOQ-xsNqO47m55DA.ttf
16 ms
BkZwJXYnumPMepfEA344yQ.ttf
20 ms
zwijsencollege.nl accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
zwijsencollege.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Issues were logged in the Issues panel in Chrome Devtools
zwijsencollege.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
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
Document uses legible font sizes
Tap targets are not sized appropriately
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zwijsencollege.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 Zwijsencollege.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.
zwijsencollege.nl
Open Graph description is not detected on the main page of Zwijsen College. 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: