2.6 sec in total
326 ms
2.1 sec
166 ms
Visit noordhoffuitgevers.nl now to see the best up-to-date Noordhoff Uitgevers content for Netherlands and also check out these interesting facts you probably never knew about noordhoffuitgevers.nl
Noordhoff is dé kennispartner van leergierig Nederland. Voor iedereen die leert, van basisschool tot professional.
Visit noordhoffuitgevers.nlWe analyzed Noordhoffuitgevers.nl page load time and found that the first response time was 326 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
noordhoffuitgevers.nl performance score
name
value
score
weighting
Value4.4 s
17/100
10%
Value14.6 s
0/100
25%
Value4.4 s
74/100
10%
Value0 ms
100/100
30%
Value0.06
98/100
15%
Value4.4 s
84/100
10%
326 ms
331 ms
210 ms
167 ms
171 ms
Our browser made a total of 59 requests to load all elements on the main page. We found that 83% of them (49 requests) were addressed to the original Noordhoffuitgevers.nl, 5% (3 requests) were made to Google-analytics.com and 3% (2 requests) were made to Googleadservices.com. The less responsive or slowest element that took the longest time to load (768 ms) belongs to the original domain Noordhoffuitgevers.nl.
Page size can be reduced by 233.9 kB (33%)
702.5 kB
468.5 kB
In fact, the total size of Noordhoffuitgevers.nl main page is 702.5 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 371.4 kB which makes up the majority of the site volume.
Potential reduce by 31.8 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 31.8 kB or 81% of the original size.
Potential reduce by 22.2 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. Noordhoff Uitgevers images are well optimized though.
Potential reduce by 138.5 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 138.5 kB or 57% of the original size.
Potential reduce by 41.5 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. Noordhoffuitgevers.nl needs all CSS files to be minified and compressed as it can save up to 41.5 kB or 82% of the original size.
Number of requests can be reduced by 29 (57%)
51
22
The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Noordhoff Uitgevers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
noordhoffuitgevers.nl
326 ms
www.noordhoffuitgevers.nl
331 ms
portal
210 ms
default.css
167 ms
catalog.css
171 ms
method.css
173 ms
patch-3.0.css
172 ms
jquery-1.4.2.min.js
343 ms
jquery-ui-1.8.2.custom.min.js
264 ms
cufon-yui.js
252 ms
Trebuchet_MS_400-Trebuchet_MS_700.font.js
426 ms
portal.js
255 ms
method.js
255 ms
behaviors.js
260 ms
conversion.js
20 ms
ga.js
59 ms
bg_header.png
382 ms
logo.png
88 ms
bg_siteactions.png
97 ms
button_call.gif
96 ms
button_text_smaller.gif
96 ms
button_text_larger.gif
98 ms
bg_search.png
172 ms
btnSubmitLeft.png
180 ms
btnSubmitRight.png
180 ms
bgMenu.png
180 ms
arrowRed.gif
180 ms
werkenbijnoordhoff157x107.png
254 ms
NoordhoffCampuzNU3t.png
432 ms
image-teasers-bg.png
268 ms
teaser_bg.png
267 ms
imgBo.jpg
268 ms
voblok-afb.jpg
549 ms
corporatehompagembo-img.jpg
517 ms
beeldHO.jpg
519 ms
TalenVolw_216x152.jpg
434 ms
imgAtl.jpg
466 ms
Lijsters_Thuis_216x152.jpg
768 ms
HEALTH_Hometeaser_NU.jpg
604 ms
arrowBlack.gif
550 ms
footer_noordhoff.gif
600 ms
52 ms
imgCaption1.png
563 ms
imgCaption2.png
594 ms
groenebalk.png
595 ms
blauwebalk.png
647 ms
imgCaption5.png
648 ms
imgCaption6.png
650 ms
imgCaption7.png
678 ms
imgCaption8.png
681 ms
arrowWhiteDown.gif
730 ms
__utm.gif
21 ms
__utm.gif
28 ms
44 ms
collect
65 ms
collect
63 ms
31 ms
ga-audiences
17 ms
print.css
86 ms
noordhoffuitgevers.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
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
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.
noordhoffuitgevers.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
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 Noordhoffuitgevers.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 Noordhoffuitgevers.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.
noordhoffuitgevers.nl
Open Graph description is not detected on the main page of Noordhoff Uitgevers. 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: