2.4 sec in total
272 ms
1.9 sec
260 ms
Click here to check amazing Nvvr content. Otherwise, check out these important facts you probably never knew about nvvr.nl
Nederlandse Vereniging van Rugpati?nten 'De Wervelkolom' met nieuws, tips, links, forums en een agenda. Informatie over hernia, discopathie, scheuermann, scoliose, ischias, spondylose en meer.
Visit nvvr.nlWe analyzed Nvvr.nl page load time and found that the first response time was 272 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
nvvr.nl performance score
name
value
score
weighting
Value3.7 s
29/100
10%
Value12.8 s
0/100
25%
Value6.1 s
44/100
10%
Value1,790 ms
10/100
30%
Value0.006
100/100
15%
Value8.0 s
43/100
10%
272 ms
360 ms
184 ms
340 ms
311 ms
Our browser made a total of 50 requests to load all elements on the main page. We found that 56% of them (28 requests) were addressed to the original Nvvr.nl, 20% (10 requests) were made to Zorgkaartnederland.nl and 4% (2 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (445 ms) belongs to the original domain Nvvr.nl.
Page size can be reduced by 466.2 kB (68%)
683.2 kB
217.0 kB
In fact, the total size of Nvvr.nl main page is 683.2 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. Javascripts take 325.2 kB which makes up the majority of the site volume.
Potential reduce by 10.9 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 10.9 kB or 66% of the original size.
Potential reduce by 9.9 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, Nvvr needs image optimization as it can save up to 9.9 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 212.6 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 212.6 kB or 65% of the original size.
Potential reduce by 232.8 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. Nvvr.nl needs all CSS files to be minified and compressed as it can save up to 232.8 kB or 83% of the original size.
Number of requests can be reduced by 13 (33%)
40
27
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nvvr. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
nvvr.nl
272 ms
www.nvvr.nl
360 ms
utils.js
184 ms
nvvr.css
340 ms
library.css
311 ms
library.js
445 ms
jquery.min.js
15 ms
formval_nl.js
339 ms
2
308 ms
awstats_misc_tracker.js
118 ms
2
412 ms
header-1024.png
105 ms
NVVR_logo_2012.png
190 ms
twitter.png
127 ms
facebook.png
92 ms
input_bg.gif
115 ms
zoekknop.png
106 ms
bg-1024.png
179 ms
menu_bg.gif
193 ms
menu_sub_bg.gif
201 ms
box_bg.gif
206 ms
b.gif
220 ms
MO.jpg
279 ms
ervaringrijk.png
289 ms
fitform_off.gif
282 ms
print-logo.png
90 ms
button_bg_inactive.gif
285 ms
2532F4_1_0.woff
384 ms
2532F4_2_0.woff
440 ms
v3.php%27%29%3B
7 ms
ga.php
145 ms
logo_zkn.png
242 ms
logo_npcf_widget.png
240 ms
arrow_for_widget_btn.png
241 ms
v3.php
242 ms
QSHQITn4eKg
69 ms
iW8jdoiDSXs
63 ms
www-embed-player-vflfNyN_r.css
54 ms
www-embed-player.js
77 ms
ga.php
123 ms
Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js
40 ms
ad_status.js
53 ms
v3.php
167 ms
QHD8zigcbDB8aPfIoaupKOvvDin1pK8aKteLpeZ5c0A.ttf
111 ms
RxZJdnzeo3R5zSexge8UUSZ2oysoEQEeKwjgmXLRnTc.ttf
111 ms
analytics.js
100 ms
collect
13 ms
foot-1024.png
102 ms
anbi.gif
102 ms
awstats_misc_tracker.js
94 ms
nvvr.nl accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
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
<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
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.
nvvr.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
General
Impact
Issue
Detected JavaScript libraries
Issues were logged in the Issues panel in Chrome Devtools
nvvr.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
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nvvr.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 Nvvr.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.
nvvr.nl
Open Graph description is not detected on the main page of Nvvr. 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: