2.7 sec in total
288 ms
2.1 sec
324 ms
Click here to check amazing KB content for Netherlands. Otherwise, check out these important facts you probably never knew about kb.nl
Bekijk de digitale, gedrukte en geschreven erfgoedcollecties van Nederland: handschriften, catalogi, boeken, tijdschriften, kranten en kaarten.
Visit kb.nlWe analyzed Kb.nl page load time and found that the first response time was 288 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
kb.nl performance score
name
value
score
weighting
Value3.2 s
43/100
10%
Value3.6 s
62/100
25%
Value3.6 s
87/100
10%
Value260 ms
83/100
30%
Value0
100/100
15%
Value8.3 s
40/100
10%
288 ms
560 ms
97 ms
192 ms
364 ms
Our browser made a total of 46 requests to load all elements on the main page. We found that 87% of them (40 requests) were addressed to the original Kb.nl, 4% (2 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (722 ms) belongs to the original domain Kb.nl.
Page size can be reduced by 422.3 kB (25%)
1.7 MB
1.2 MB
In fact, the total size of Kb.nl main page is 1.7 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 1.2 MB which makes up the majority of the site volume.
Potential reduce by 29.9 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 29.9 kB or 78% of the original size.
Potential reduce by 81.3 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. KB images are well optimized though.
Potential reduce by 215.1 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 215.1 kB or 70% of the original size.
Potential reduce by 95.9 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. Kb.nl needs all CSS files to be minified and compressed as it can save up to 95.9 kB or 84% of the original size.
Number of requests can be reduced by 19 (48%)
40
21
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
kb.nl
288 ms
www.kb.nl
560 ms
css_gnCLsp8QhrIVqzyqHZlLU3pyVUnZ42noukGgOSczL8c.css
97 ms
css_u8qTZdKW7Rm0mvCuvsDYjRHboV5_2oZ6vHslJTGAAlU.css
192 ms
css_3hy9lJ7qf_LZ4nwnicG0TuVjZ9npW4RAylpVVVZ3QlI.css
364 ms
css_dm4uop2oKzTU8S__u4GvCtvYrC5NEpq6NBLVG8CMtaA.css
278 ms
js_xZ5AqZ2fr8IUDTXwJOOXEvFFb3gQdPE0zvqMcP7IihU.js
457 ms
js_T7BMj5bwpGPFse9_BR6quVBhnEc_2pEOeM5jcoJCZBw.js
482 ms
js_hM-hnggBFNWbjjpQZCC4qv68oPtdkvOLM_h0eTtfXAk.js
285 ms
js_vHirOVUGiH7FBCj7UC_b-EmHHMVpVy2x1S8r7uOsbpg.js
286 ms
js_MfL5LqmyQvc4JJ2E9fG8k-dtB6uAiAjXCVwC773PUCQ.js
481 ms
js_Pb8hlkffpcGIYDSDw39RqDXgpLH4gdSRPcLBx4hBRik.js
379 ms
css
53 ms
pixel.jpg
101 ms
29.jpg
363 ms
hv-kb-laren0447.jpg
377 ms
12-leeszaal.jpg
183 ms
tienhoven.jpg
273 ms
jaarvhboek_voorhomepage.jpg
184 ms
amsterdamssteuncomite1915_k.jpg
310 ms
spinoza-strip.jpg
364 ms
74f1_084v_min_0.jpg
368 ms
van_wiegendruk_tot_world_wide_web_klein.jpg
366 ms
20101006b18.jpg
405 ms
gtm.js
121 ms
kblogo.svg
438 ms
menu-leaf.png
440 ms
search_button.png
447 ms
moesman.png
722 ms
menu-arrowdown-dark.png
452 ms
bulletbg2.png
481 ms
bulletbg3.png
527 ms
facebook.png
529 ms
pinterest.png
537 ms
rss.png
546 ms
twitter.png
574 ms
button_aanmelden.png
618 ms
menu.png
567 ms
link-arrowright-light.png
577 ms
extlink_blue.png
588 ms
DINWeb-Medium.woff
618 ms
lyvcXAp_ih3ehVX3UeaIavesZW2xOQ-xsNqO47m55DA.ttf
68 ms
QABk9IxT-LFTJ_dQzv7xpF02b4v3fUxqf9CZJ1qUoIA.ttf
94 ms
DINWeb-Light.woff
656 ms
analytics.js
52 ms
collect
11 ms
kb.nl accessibility score
kb.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
kb.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 Kb.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 Kb.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.
kb.nl
Open Graph description is not detected on the main page of KB. 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: