5.8 sec in total
1.1 sec
4.5 sec
203 ms
Welcome to boom.nl homepage info - get ready to check Boom best content for Netherlands right away, or after learning these important things about boom.nl
De wereld om ons heen verandert continu. Met nog meer kennis. Vernieuwende standpunten. Bij Boom zorgen we voor een beter begrip voor iedereen. =>
Visit boom.nlWe analyzed Boom.nl page load time and found that the first response time was 1.1 sec and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.
boom.nl performance score
name
value
score
weighting
Value4.6 s
13/100
10%
Value15.0 s
0/100
25%
Value13.4 s
2/100
10%
Value1,200 ms
20/100
30%
Value0.001
100/100
15%
Value24.3 s
0/100
10%
1116 ms
503 ms
684 ms
374 ms
281 ms
Our browser made a total of 40 requests to load all elements on the main page. We found that 95% of them (38 requests) were addressed to the original Boom.nl, 5% (2 requests) were made to Ssl.google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Boom.nl.
Page size can be reduced by 105.0 kB (22%)
479.4 kB
374.4 kB
In fact, the total size of Boom.nl main page is 479.4 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. 25% of websites need less resources to load. Images take 316.1 kB which makes up the majority of the site volume.
Potential reduce by 13.0 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 13.0 kB or 76% 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. Boom images are well optimized though.
Potential reduce by 67.4 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 67.4 kB or 57% of the original size.
Potential reduce by 22.9 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. Boom.nl needs all CSS files to be minified and compressed as it can save up to 22.9 kB or 82% of the original size.
Number of requests can be reduced by 5 (13%)
39
34
The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Boom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.
www.boom.nl
1116 ms
boom.css
503 ms
jquery-1.4.3.min.js
684 ms
jquery.easing.js
374 ms
respond.min.js
281 ms
jquery.colorbox-min.js
376 ms
boom.js
282 ms
ga.js
66 ms
bg_sidebar.gif
283 ms
bg_header_2010.gif
284 ms
logo_boom_uitgevers_2010.gif
283 ms
bg_menu.gif
281 ms
meisje_in_gras_met_boek.jpg
665 ms
jongen_met_laptop_in_bib.jpg
569 ms
man_met_kinderen.jpg
964 ms
meisje_met_ipad.jpg
833 ms
meisje_op_houten_bank.jpg
837 ms
portalvisual-overlay.png
568 ms
boom.gif
853 ms
boom_uitgevers_denhaag.gif
853 ms
boom_test_uitgevers.gif
945 ms
boom_uitgevers_amsterdam.gif
1112 ms
bju.gif
1112 ms
uitgeverij_nelissen2011.gif
1129 ms
boom_lemma.gif
1130 ms
boom_regionale_uitgevers.gif
1223 ms
eleven.gif
1240 ms
edu_actief.gif
1387 ms
boom_reizen.gif
1390 ms
gg_large_2015.jpg
1685 ms
portalsearch_bg.png
1394 ms
portalsearch_icon.png
1489 ms
bg_portal_bovenkant.gif
1504 ms
portal-logostrip_bg.gif
1760 ms
bg_portal_lower.gif
1652 ms
1682 ms
__utm.gif
23 ms
clickmetonlinemarketing_w165.jpg
420 ms
dsm_serie_ii_beknopt_w165.jpg
418 ms
boom-print.css
99 ms
boom.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
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
boom.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
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
boom.nl SEO score
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 Boom.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 Boom.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.
boom.nl
Open Graph description is not detected on the main page of Boom. 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: