2.8 sec in total
348 ms
2.1 sec
310 ms
Visit develmer.nl now to see the best up-to-date De Velmer content and also check out these interesting facts you probably never knew about develmer.nl
Visit develmer.nlWe analyzed Develmer.nl page load time and found that the first response time was 348 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.
develmer.nl performance score
name
value
score
weighting
Value3.5 s
34/100
10%
Value11.0 s
0/100
25%
Value6.6 s
37/100
10%
Value2,040 ms
7/100
30%
Value0.541
14/100
15%
Value11.1 s
20/100
10%
348 ms
883 ms
166 ms
246 ms
176 ms
Our browser made a total of 55 requests to load all elements on the main page. We found that 65% of them (36 requests) were addressed to the original Develmer.nl, 5% (3 requests) were made to Afhangbord.nl and 4% (2 requests) were made to Www1.afhangbord.nl. The less responsive or slowest element that took the longest time to load (883 ms) belongs to the original domain Develmer.nl.
Page size can be reduced by 203.1 kB (41%)
492.0 kB
289.0 kB
In fact, the total size of Develmer.nl main page is 492.0 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 209.9 kB which makes up the majority of the site volume.
Potential reduce by 56.9 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 56.9 kB or 85% of the original size.
Potential reduce by 10.0 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. De Velmer images are well optimized though.
Potential reduce by 109.8 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 109.8 kB or 59% of the original size.
Potential reduce by 26.3 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. Develmer.nl needs all CSS files to be minified and compressed as it can save up to 26.3 kB or 90% of the original size.
Number of requests can be reduced by 31 (60%)
52
21
The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of De Velmer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.
develmer.nl
348 ms
331.asp
883 ms
cookiecheck.css
166 ms
cookieCheck.js
246 ms
style.css
176 ms
GetBanner
181 ms
abm.asp
258 ms
abm.asp
223 ms
weblogCalendar.js
98 ms
GetBanner
195 ms
close-button.jpg
86 ms
1x1px.gif
87 ms
1x1px.gif
93 ms
11186-619473.jpg
127 ms
8857-475557.jpg
128 ms
8857-475556.jpg
168 ms
icon_user.gif
165 ms
icon_folder.gif
168 ms
icon_computer.gif
179 ms
btn_LEESMEER.gif
187 ms
icon_arrow.gif
212 ms
icon_comment.gif
243 ms
icon_download_small.gif
246 ms
icon_form_small.gif
248 ms
first_grey.gif
264 ms
back_grey.gif
271 ms
next_blue.gif
297 ms
last_blue.gif
325 ms
feed-icon-16x16.gif
325 ms
velmerlogo_1.jpg
340 ms
1x1px.gif
349 ms
Slider_tvdevelmer_v2.gif
614 ms
velmerlogo_2.jpg
368 ms
sponsor_afhangbord.gif
385 ms
panel_listitem2.gif
386 ms
banner_120x600_feb_2016.jpg
685 ms
bottom_right.jpg
389 ms
top_left.jpg
410 ms
knltb_336x280.html
29 ms
header_right.jpg
432 ms
calender_arrowback.gif
421 ms
calender_arrowforward.gif
420 ms
gpt.js
5 ms
gtm.js
49 ms
Schermafbeelding%202014-07-02%20om%2017.26.44.jpg
518 ms
59 ms
pubads_impl_82.js
8 ms
ads
189 ms
container.html
17 ms
analytics.js
13 ms
collect
4 ms
collect
53 ms
5742822316335914928
28 ms
osd.js
8 ms
activeview
22 ms
develmer.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
Image elements do not have [alt] attributes
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
Heading elements are not in a sequentially-descending order
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
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>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
develmer.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
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
develmer.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
ISO-8859-1
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Develmer.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 Develmer.nl main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
develmer.nl
Open Graph description is not detected on the main page of De Velmer. 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: