4 sec in total
296 ms
3.4 sec
298 ms
Visit willemblaeu.nl now to see the best up-to-date Willem Blaeu content and also check out these interesting facts you probably never knew about willemblaeu.nl
OSG Willem Blaeu is een kleinschalige scholengemeenschap in Alkmaar met ruim 850 leerlingen waar leerlingen de kans krijgt het beste uit zichzelf te halen.
Visit willemblaeu.nlWe analyzed Willemblaeu.nl page load time and found that the first response time was 296 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
willemblaeu.nl performance score
name
value
score
weighting
Value9.9 s
0/100
10%
Value19.8 s
0/100
25%
Value18.3 s
0/100
10%
Value870 ms
33/100
30%
Value0.001
100/100
15%
Value15.4 s
7/100
10%
296 ms
1870 ms
110 ms
292 ms
194 ms
Our browser made a total of 46 requests to load all elements on the main page. We found that 85% of them (39 requests) were addressed to the original Willemblaeu.nl, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.9 sec) belongs to the original domain Willemblaeu.nl.
Page size can be reduced by 481.9 kB (38%)
1.3 MB
798.4 kB
In fact, the total size of Willemblaeu.nl main page is 1.3 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 649.8 kB which makes up the majority of the site volume.
Potential reduce by 35.9 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 35.9 kB or 79% of the original size.
Potential reduce by 20.2 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. Willem Blaeu images are well optimized though.
Potential reduce by 171.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 171.0 kB or 67% of the original size.
Potential reduce by 254.7 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. Willemblaeu.nl needs all CSS files to be minified and compressed as it can save up to 254.7 kB or 77% of the original size.
Number of requests can be reduced by 26 (65%)
40
14
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Willem Blaeu. 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 13 to 1 for CSS and as a result speed up the page load time.
willemblaeu.nl
296 ms
www.willemblaeu.nl
1870 ms
wp-emoji-release.min.js
110 ms
dashicons.min.css
292 ms
public.css
194 ms
base.css
310 ms
style.css
206 ms
widget.css
250 ms
jquery-1.11.2.min.js
329 ms
modernizr.min.js
297 ms
bootstrap.min.js
328 ms
respond.min.js
357 ms
public.js
388 ms
morph-accordion.js
394 ms
formreset.min.css
412 ms
formsmain.min.css
448 ms
readyclass.min.css
449 ms
browsers.min.css
476 ms
fancy-gallery.js
495 ms
morph.js
733 ms
search.js
737 ms
wp-embed.min.js
738 ms
placeholders.jquery.min.js
739 ms
logo.png
347 ms
rekentoets-150x150.jpg
348 ms
IMG_4924-150x150.jpg
348 ms
website-150x150.jpg
348 ms
gtm.js
55 ms
banner-overlay.png
628 ms
willem-blaeu-school.jpg
810 ms
nieuws.jpg
480 ms
agenda.jpg
455 ms
onderwijs-willem-blaeu.jpg
479 ms
opensans-regular-webfont.woff
294 ms
opensans-bold-webfont.woff
358 ms
fontawesome-webfont.woff
771 ms
analytics.js
245 ms
conversion_async.js
245 ms
blueimp-gallery.min.css
464 ms
blueimp-patches.css
489 ms
html5-galleries.css
499 ms
collage.css
558 ms
collect
10 ms
collect
71 ms
54 ms
31 ms
willemblaeu.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
Form elements do not have associated labels
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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
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.
willemblaeu.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
willemblaeu.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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 Willemblaeu.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 Willemblaeu.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.
willemblaeu.nl
Open Graph data is detected on the main page of Willem Blaeu. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: