Tools & Wizards About Us
neurobics.nl screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

neurobics.nl

Neurofeedback Groningen | Neurobics | Dé praktijk voor neurofeedback

Page Load Speed

2.5 sec in total

First Response

610 ms

Resources Loaded

1.7 sec

Page Rendered

180 ms

neurobics.nl screenshot

About Website

Welcome to neurobics.nl homepage info - get ready to check Neurobics best content right away, or after learning these important things about neurobics.nl

Neurofeedback Groningen | 15+ jaar ervaring | Snel en resultaatgericht | Voel je snel beter, vraag een hersenmeting aan →

Visit neurobics.nl

Key Findings

We analyzed Neurobics.nl page load time and found that the first response time was 610 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

neurobics.nl performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

18/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

neurobics.nl

610 ms

roboto.all.css

65 ms

css

29 ms

index.css

121 ms

jquery.min.js

7 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 39% of them (21 requests) were addressed to the original Neurobics.nl, 13% (7 requests) were made to Fonts.gstatic.com and 6% (3 requests) were made to S.ytimg.com. The less responsive or slowest element that took the longest time to load (877 ms) belongs to the original domain Neurobics.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 579.8 kB (36%)

Content Size

1.6 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Neurobics.nl main page is 1.6 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. 50% of websites need less resources to load. Images take 975.0 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 18.0 kB

  • Original 26.6 kB
  • After minification 26.2 kB
  • After compression 8.6 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 18.0 kB or 68% of the original size.

Image Optimization

-15%

Potential reduce by 149.6 kB

  • Original 975.0 kB
  • After minification 825.5 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, Neurobics needs image optimization as it can save up to 149.6 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-57%

Potential reduce by 209.6 kB

  • Original 368.8 kB
  • After minification 351.8 kB
  • After compression 159.2 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 209.6 kB or 57% of the original size.

CSS Optimization

-83%

Potential reduce by 202.6 kB

  • Original 244.2 kB
  • After minification 244.1 kB
  • After compression 41.5 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. Neurobics.nl needs all CSS files to be minified and compressed as it can save up to 202.6 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (56%)

Requests Now

45

After Optimization

20

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Neurobics. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

neurobics.nl

neurobics.nl

610 ms

roboto.all.css

roboto.all.css

65 ms

css

css

29 ms

index.css

index.css

121 ms

jquery.min.js

jquery.min.js

7 ms

jquery-ui.min.js

jquery-ui.min.js

12 ms

jquery.lightbox-0.5.min.js

jquery.lightbox-0.5.min.js

186 ms

jquery.simplyscroll.min.js

jquery.simplyscroll.min.js

186 ms

jquery.validate.js

jquery.validate.js

200 ms

purl.js

purl.js

186 ms

frontend.js

frontend.js

218 ms

533aa4829d0cf5c5dc000032.js

533aa4829d0cf5c5dc000032.js

60 ms

analytics.js

analytics.js

58 ms

b6f2e4dd-92c2-4bbf-b155-5c6dd5974702.js

b6f2e4dd-92c2-4bbf-b155-5c6dd5974702.js

218 ms

icon_3d.png

icon_3d.png

130 ms

logo.png

logo.png

126 ms

sub_bg.jpg

sub_bg.jpg

695 ms

Waarom.jpg

Waarom.jpg

606 ms

hbi_database2.jpg

hbi_database2.jpg

693 ms

home_vis.png

home_vis.png

877 ms

neurooxy.jpg

neurooxy.jpg

694 ms

De%20legende%20van%20de%20Neuropiraatslider.jpg

De%20legende%20van%20de%20Neuropiraatslider.jpg

767 ms

meerinfo_bg.png

meerinfo_bg.png

695 ms

eb56ecb6f7831634a045856a2bbbe1a9.png

eb56ecb6f7831634a045856a2bbbe1a9.png

873 ms

footer_volgons.png

footer_volgons.png

793 ms

footer_vestiging2.png

footer_vestiging2.png

791 ms

footer_vestiging1.png

footer_vestiging1.png

789 ms

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff

28 ms

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff

50 ms

MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff

MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff

35 ms

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff

49 ms

EInbV5DfGHOiMmvb1Xr-hnhCUOGz7vYGh680lGh-uXM.woff

EInbV5DfGHOiMmvb1Xr-hnhCUOGz7vYGh680lGh-uXM.woff

35 ms

Roboto-Light-webfont.woff

Roboto-Light-webfont.woff

864 ms

gr4OH5ypvk4

gr4OH5ypvk4

122 ms

collect

collect

36 ms

tagjs

tagjs

19 ms

49 ms

adsct

adsct

518 ms

Pug

Pug

125 ms

www-embed-player-vflfNyN_r.css

www-embed-player-vflfNyN_r.css

69 ms

www-embed-player.js

www-embed-player.js

109 ms

base.js

base.js

489 ms

u.php

u.php

534 ms

sd

sd

15 ms

cb

cb

422 ms

tap.php

tap.php

385 ms

cb

cb

11 ms

ncm

ncm

85 ms

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

Tqng9ngJVK4Gqvh3e602hP-HqlN49KFEUSDtmrOPmWo.js

30 ms

ad_status.js

ad_status.js

41 ms

cb

cb

15 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

27 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

31 ms

nr-892.min.js

nr-892.min.js

16 ms

Accessibility Review

neurobics.nl accessibility score

95

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

neurobics.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

neurobics.nl SEO score

89

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Neurobics.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 Neurobics.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.

Social Sharing Optimization

neurobics.nl

Open Graph description is not detected on the main page of Neurobics. 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: