8.1 sec in total
273 ms
7.3 sec
604 ms
Visit refdag.nl now to see the best up-to-date Refdag content for Netherlands and also check out these interesting facts you probably never knew about refdag.nl
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Visit refdag.nlWe analyzed Refdag.nl page load time and found that the first response time was 273 ms and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
refdag.nl performance score
name
value
score
weighting
Value4.8 s
11/100
10%
Value7.7 s
3/100
25%
Value15.1 s
1/100
10%
Value9,750 ms
0/100
30%
Value0.336
34/100
15%
Value24.7 s
0/100
10%
273 ms
717 ms
171 ms
169 ms
169 ms
Our browser made a total of 139 requests to load all elements on the main page. We found that 50% of them (69 requests) were addressed to the original Refdag.nl, 10% (14 requests) were made to Static.xx.fbcdn.net and 8% (11 requests) were made to F1.eu.readspeaker.com. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Vicinity.picsrv.net.
Page size can be reduced by 745.8 kB (59%)
1.3 MB
512.9 kB
In fact, the total size of Refdag.nl main page is 1.3 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 822.1 kB which makes up the majority of the site volume.
Potential reduce by 67.9 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 67.9 kB or 78% of the original size.
Potential reduce by 24.5 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, Refdag needs image optimization as it can save up to 24.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 550.2 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 550.2 kB or 67% of the original size.
Potential reduce by 103.2 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. Refdag.nl needs all CSS files to be minified and compressed as it can save up to 103.2 kB or 84% of the original size.
Number of requests can be reduced by 66 (49%)
136
70
The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Refdag. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 41 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
refdag.nl
273 ms
www.refdag.nl
717 ms
default.css
171 ms
jquery.fancybox.css
169 ms
jquery.fancybox-buttons.css
169 ms
jquery.fancybox-thumbs.css
199 ms
jquery-1.7.min.js
296 ms
default.js
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jquery.fancybox.js
253 ms
jquery.fancybox-buttons.js
251 ms
jquery.fancybox-thumbs.js
255 ms
jquery.cookies.2.2.0.min
293 ms
ReadSpeaker.js
5 ms
ReadSpeakerRDnlSkin.css
338 ms
ReadSpeakerRDnlSkin.js
339 ms
flowplayer-3.1.4.min.js
345 ms
plusone.js
105 ms
gpt.js
8 ms
ReadSpeaker.Styles.css
4 ms
ReadSpeaker.Core.js
6 ms
ReadSpeaker.pub.Config.js
6 ms
pubads_impl_81.js
13 ms
ReadSpeaker.lib.Facade.adapter.jquery.js
10 ms
btn-login.png
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logo.jpg
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arrow_223c7f_vert.jpg
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544 ms
all.js
20 ms
ReadSpeaker.Common.Settings.js
19 ms
ReadSpeaker.PlayerAPI.js
19 ms
ReadSpeaker.HL.js
19 ms
ReadSpeaker.ui.js
19 ms
container.html
42 ms
background.png
522 ms
emg_color_bar.jpg
628 ms
loginbox-bg.png
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searchbox-background.png
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top-line.png
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arrow_menu.png
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follow_button.html
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rightcol_thirds_shadow_left.png
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rightcol_thirds_shadow_middle.png
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Aanmelden_RDnl
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small_box_gray_gradient.jpg
645 ms
fade.png
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ga.js
30 ms
cb=gapi.loaded_0
77 ms
cb=gapi.loaded_1
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fastbutton
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ReadSpeaker.enlargeHL.js
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ReadSpeaker.enlargeHL.css
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__utm.gif
20 ms
like.php
161 ms
rd-logo.png
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icon-rdnl.svg
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likebox.php
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widget-bg.jpg
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api.js
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core:rpc:shindig.random:shindig.sha1.js
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jquery-1.7.2.min.js
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SurveyFlow.js
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registerClick.js
95 ms
analytics.js
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small_box_gray_gradient.jpg
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envelope-30x19.png
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refdag.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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
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.
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 IDs are not unique
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
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
refdag.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
Missing source maps for large first-party JavaScript
refdag.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
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Refdag.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 Refdag.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.
refdag.nl
Open Graph description is not detected on the main page of Refdag. 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: