4.4 sec in total
395 ms
3.3 sec
726 ms
Click here to check amazing HZ content for Netherlands. Otherwise, check out these important facts you probably never knew about hz.nl
Op de HZ wordt persoonlijk, kleinschalig voltijd- en deeltijdonderwijs geboden aan zo’n 5.000 studenten. Onze studenten worden gestimuleerd om het beste uit zichzelf te halen.
Visit hz.nlWe analyzed Hz.nl page load time and found that the first response time was 395 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
hz.nl performance score
name
value
score
weighting
Value3.4 s
38/100
10%
Value12.4 s
0/100
25%
Value6.1 s
45/100
10%
Value710 ms
42/100
30%
Value0.037
100/100
15%
Value12.4 s
14/100
10%
395 ms
1279 ms
195 ms
390 ms
492 ms
Our browser made a total of 49 requests to load all elements on the main page. We found that 73% of them (36 requests) were addressed to the original Hz.nl, 6% (3 requests) were made to Googletagmanager.com and 2% (1 request) were made to Connect.getflowbox.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Hz.nl.
Page size can be reduced by 217.3 kB (10%)
2.1 MB
1.9 MB
In fact, the total size of Hz.nl main page is 2.1 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. 60% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.
Potential reduce by 124.5 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 57.1 kB, which is 40% 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 124.5 kB or 88% of the original size.
Potential reduce by 1.7 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. HZ images are well optimized though.
Potential reduce by 90.7 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 90.7 kB or 23% of the original size.
Potential reduce by 423 B
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. Hz.nl has all CSS files already compressed.
Number of requests can be reduced by 20 (51%)
39
19
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of HZ. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.
hz.nl
395 ms
hz.nl
1279 ms
polyfills-legacy-f12babbc.js
195 ms
base-6a0da1c0.js
390 ms
base-ae7b5f81.css
492 ms
base-legacy-fb054864.js
681 ms
app-a1fd8f55.js
197 ms
app-legacy-518b8698.js
196 ms
search-13d238ed.js
289 ms
search-legacy-73077735.js
293 ms
swiper-4b7a69a6.js
391 ms
swiper-legacy-46cd9bd0.js
484 ms
flowbox.js
77 ms
gtm.js
104 ms
logo.svg
131 ms
giusy-header-home.jpg
389 ms
Header-campagne-student-voltijd-Hatizda.jpg
390 ms
ingmar-header-home.jpg
308 ms
anita-header-home.jpg
575 ms
willem-header-home.jpg
480 ms
Keuzegids-2e-plaats-middelgrote-hogeschool-klein-zegel.png
308 ms
Edisonweg-Vlissingen-HZ-Shop-415x500.jpg
389 ms
Aadya-international-student-portrait-beach-415x500.jpg
485 ms
Onderzoek-zeewier-in-water-handen-415x500.jpg
481 ms
HZ-Community-Kick-off-festival.jpg
482 ms
SDG-vlag-415x500.jpg
481 ms
DSC_6400-3.jpg
575 ms
POSTER-MAMA-WERK-kleiner-zonder-tekst.jpg
576 ms
Header-DCC.jpg
578 ms
Associate-degrees-Academie-samenwerkruimte.jpg
577 ms
DIN-Regular.woff
543 ms
DIN-Medium.woff
633 ms
DIN-Bold.woff
650 ms
silka-bold-webfont.woff
648 ms
silka-medium-webfont.woff
649 ms
fa-regular-400-125529a3.ttf
834 ms
fa-light-300-839dcfbc.ttf
843 ms
fa-solid-900-13da46f8.ttf
925 ms
uc.js
63 ms
js
69 ms
destination
135 ms
scevent.min.js
57 ms
monsido-script.js
38 ms
2034076.js
127 ms
integrations.js
34 ms
leadflows.js
48 ms
2034076.js
70 ms
tracking.monsido.com
52 ms
heatmaps.js
64 ms
hz.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
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
Heading elements are not in a sequentially-descending order
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
List items (<li>) are not contained within <ul> or <ol> parent elements.
hz.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
hz.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Hz.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 Hz.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.
hz.nl
Open Graph data is detected on the main page of HZ. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: