4.2 sec in total
835 ms
3 sec
375 ms
Click here to check amazing Boom Psychologie content for Netherlands. Otherwise, check out these important facts you probably never knew about boompsychologie.nl
Boeken en digitale producten voor ggz professionals | DSM-5, behandelprotocollen, e-health, zelfhulpboeken, tests & vragenlijsten | Gratis verzending binnen Nederland vanaf €20 | Voor 21u besteld, mor...
Visit boompsychologie.nlWe analyzed Boompsychologie.nl page load time and found that the first response time was 835 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.
boompsychologie.nl performance score
name
value
score
weighting
Value3.4 s
36/100
10%
Value6.1 s
12/100
25%
Value5.8 s
49/100
10%
Value510 ms
57/100
30%
Value0.569
12/100
15%
Value9.6 s
29/100
10%
835 ms
83 ms
247 ms
490 ms
411 ms
Our browser made a total of 60 requests to load all elements on the main page. We found that 80% of them (48 requests) were addressed to the original Boompsychologie.nl, 5% (3 requests) were made to Platform.twitter.com and 5% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (858 ms) belongs to the original domain Boompsychologie.nl.
Page size can be reduced by 319.4 kB (42%)
765.6 kB
446.2 kB
In fact, the total size of Boompsychologie.nl main page is 765.6 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. 35% of websites need less resources to load. Images take 447.7 kB which makes up the majority of the site volume.
Potential reduce by 33.5 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. 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 33.5 kB or 78% of the original size.
Potential reduce by 102.6 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, Boom Psychologie needs image optimization as it can save up to 102.6 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 119.5 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 119.5 kB or 61% of the original size.
Potential reduce by 63.9 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. Boompsychologie.nl needs all CSS files to be minified and compressed as it can save up to 63.9 kB or 80% of the original size.
Number of requests can be reduced by 24 (41%)
58
34
The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boom Psychologie. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.
www.boompsychologie.nl
835 ms
font-awesome.min.css
83 ms
boompsychologie.css
247 ms
jquery.js
490 ms
shared.js
411 ms
boompsychologie.js
262 ms
lang.js.php
286 ms
slides.min.jquery.js
274 ms
jquery.colorbox-min.js
327 ms
otmLinkTaggerUA.js
348 ms
bua_policy_cookies.js
360 ms
jquery.raty.min.js
371 ms
j.php
114 ms
logo.png
110 ms
header-midden-2014_w380_h134_bgtop.gif
110 ms
plaatje_cotapp_film_w95.jpg
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tvn_2016_1_hr_w95.jpg
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tvpa_2016_1_hr_w95.jpg
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leren_lijden_9789089539427_3d_lr_w95.jpg
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whitepaper_jac_de_bruijn_joyce_lonte_heb_jij_daar_wel_recht_op_w95.jpg
192 ms
omslag_hnp_3d_lr_w95.jpg
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beterweters_9789089539199_3d_mr_w95.jpg
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onlinehulpstempel_logo_w95.jpg
216 ms
portret_nanda_rommelse_w95.jpg
271 ms
de_ziel_van_het_vak_2d_hr_rgb_w55.jpg
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de_maakbare_mens_2d_lr_rgb_w55.jpg
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dsm-5_beknoptoverzicht_ringband_2d_highres_w55.jpg
296 ms
handboek_kop-model_rgb_2d_hr_w55.jpg
368 ms
thuiswinkel_waarborg_2014.png
349 ms
footer_paymentmethods.gif
365 ms
gtm.js
148 ms
header_bg.gif
357 ms
search_icon.png
357 ms
search_shadow.png
369 ms
banner_leren_lijden_februari_2016.jpg
693 ms
banner_handboek_neuropsychotherapie_februari_2016.jpg
767 ms
banner_beterweters_februari_2016.jpg
858 ms
more.gif
433 ms
SourceSansPro-Semibold-webfont.woff
555 ms
widgets.js
95 ms
shoppingbag.gif
419 ms
buttons_wide.gif
491 ms
buttons.gif
504 ms
bg_footer.gif
578 ms
colorbox_arrows.png
571 ms
close.png
621 ms
slider_lr.png
680 ms
v.gif
17 ms
button.0308b81ff1714e446f674b5b9793f2cd.js
21 ms
analytics.js
45 ms
follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html
24 ms
ec.js
8 ms
collect
3 ms
collect
63 ms
ga-audiences
39 ms
jot
101 ms
boompsychologie.nl accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-hidden="true"] elements contain focusable descendents
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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
boompsychologie.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
boompsychologie.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
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Boompsychologie.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 Boompsychologie.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.
boompsychologie.nl
Open Graph description is not detected on the main page of Boom Psychologie. 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: