Tools & Wizards About Us
onlinemuziekcursus.nl screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

onlinemuziekcursus.nl

Online muzieklessen | OnlineMuziekCursus.nl - Muziekschool

Page Load Speed

4.5 sec in total

First Response

366 ms

Resources Loaded

3.4 sec

Page Rendered

723 ms

onlinemuziekcursus.nl screenshot

About Website

Visit onlinemuziekcursus.nl now to see the best up-to-date Online Muziek Cursus content for Netherlands and also check out these interesting facts you probably never knew about onlinemuziekcursus.nl

Profiteer met onze online muzieklessen van professioneel lesmateriaal dat je bekijkt wanneer jij wilt. Bestel online muzieklessen en leer op je eigen tempo.

Visit onlinemuziekcursus.nl

Key Findings

We analyzed Onlinemuziekcursus.nl page load time and found that the first response time was 366 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

onlinemuziekcursus.nl performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

62/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

Network Requests Diagram

onlinemuziekcursus.nl

366 ms

onlinemuziekcursus.nl

464 ms

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24 ms

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24 ms

gtm.js

166 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Onlinemuziekcursus.nl, 49% (29 requests) were made to Media-01.imu.nl and 25% (15 requests) were made to App.phoenixsite.nl. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source Media-01.imu.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 131.9 kB (5%)

Content Size

2.9 MB

After Optimization

2.7 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Onlinemuziekcursus.nl main page is 2.9 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. 60% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 91.0 kB

  • Original 109.2 kB
  • After minification 109.1 kB
  • After compression 18.3 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 91.0 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 40.5 kB

  • Original 2.7 MB
  • After minification 2.7 MB

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. Online Muziek Cursus images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 380 B

  • Original 40.5 kB
  • After minification 40.5 kB
  • After compression 40.1 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 22 (42%)

Requests Now

53

After Optimization

31

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Online Muziek Cursus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

onlinemuziekcursus.nl

onlinemuziekcursus.nl

366 ms

onlinemuziekcursus.nl

onlinemuziekcursus.nl

464 ms

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24 ms

javascript;base64,ICAgICAgICAgICAgICAgICAgICAoZnVuY3Rpb24oZCwgcywgaWQpIHsKICAgICAgICAgICAgICAgICAgICAgIHZhciBqcywgZmpzID0gZC5nZXRFbGVtZW50c0J5VGFnTmFtZShzKVswXTsKICAgICAgICAgICAgICAgICAgICAgIGlmIChkLmdldEVsZW1lbnRCeUlkKGlkKSkgcmV0dXJuOwogICAgICAgICAgICAgICAgICAgICAganMgPSBkLmNyZWF0ZUVsZW1lbnQocyk7IGpzLmlkID0gaWQ7CiAgICAgICAgICAgICAgICAgICAgICBqcy5zcmMgPSAnaHR0cHM6Ly9jb25uZWN0LmZhY2Vib29rLm5ldC9lbl9HQi9zZGsuanMjeGZibWw9MSZ2ZXJzaW9uPXYzLjInOwogICAgICAgICAgICAgICAgICAgICAgZmpzLnBhcmVudE5vZGUuaW5zZXJ0QmVmb3JlKGpzLCBmanMpOwogICAgICAgICAgICAgICAgICAgIH0oZG9jdW1lbnQsICdzY3JpcHQnLCAnZmFjZWJvb2stanNzZGsnKSk7

javascript;base64,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

24 ms

gtm.js

gtm.js

166 ms

js

js

322 ms

jquery.min.js

jquery.min.js

115 ms

parameter-vars.js

parameter-vars.js

163 ms

img-popup-box.js

img-popup-box.js

163 ms

video-popup-box.js

video-popup-box.js

187 ms

portfolio-popup-box.js

portfolio-popup-box.js

161 ms

menu-scroll.js

menu-scroll.js

185 ms

anchor-scroll-script.js

anchor-scroll-script.js

189 ms

box-slider-script.js

box-slider-script.js

187 ms

common-scripts-ps.js

common-scripts-ps.js

187 ms

two-step-optin-trigger.js

two-step-optin-trigger.js

188 ms

phx-admin-menu.js

phx-admin-menu.js

189 ms

fake-scroll.js

fake-scroll.js

189 ms

reading-progressbar.js

reading-progressbar.js

298 ms

animation-script.js

animation-script.js

275 ms

news-unit-new.js

news-unit-new.js

276 ms

phx-analytics.js

phx-analytics.js

160 ms

fbevents.js

fbevents.js

121 ms

uploads

uploads

489 ms

lazyload.min.js

lazyload.min.js

266 ms

css

css

148 ms

gitaarles-home-500x333.png

gitaarles-home-500x333.png

795 ms

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789 ms

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zangles-home-500x333.png

793 ms

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drumles-home-500x333.png

806 ms

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805 ms

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787 ms

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1119 ms

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offershot-leren-tokkelen-home-500x333.png

1078 ms

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1124 ms

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1119 ms

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1133 ms

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1120 ms

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offershot-inzing-oefeningen-home-500x333.png

1374 ms

leren-dirigeren-500x333-1.png

leren-dirigeren-500x333-1.png

1434 ms

cadeau-bon-500x333.png

cadeau-bon-500x333.png

1738 ms

uploads

uploads

1453 ms

simpele-popliedjes-op-piano-leren-spelen-1170x500.jpg

simpele-popliedjes-op-piano-leren-spelen-1170x500.jpg

1782 ms

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1717 ms

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gitaarsteun-voetenbankje-1170x500.jpg

1682 ms

stemapparaat-1170x500.jpg

stemapparaat-1170x500.jpg

1959 ms

piano-schoonmaken-1170x500.jpg

piano-schoonmaken-1170x500.jpg

2065 ms

akoestische-piano-1170x500.jpg

akoestische-piano-1170x500.jpg

2234 ms

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keyboard-op-de-computer-spelen-1170x500.png

2300 ms

gigbag-of-gitaarkoffer-1170x500.jpg

gigbag-of-gitaarkoffer-1170x500.jpg

2299 ms

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adem-en-ademvocaalruimtes-1170x500.jpg

2243 ms

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bedrijven-award-voor-online-muzieklessen-320x155-1.png

2295 ms

analytics.js

analytics.js

160 ms

sdk.js

sdk.js

159 ms

sdk.js

sdk.js

88 ms

collect

collect

83 ms

49 ms

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Nieuwe-logo-OMC-klein-220x55.png

1901 ms

bedrijven-award-voor-online-muzieklessen-260x125.png

bedrijven-award-voor-online-muzieklessen-260x125.png

1106 ms

Accessibility Review

onlinemuziekcursus.nl accessibility score

84

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.

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

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

onlinemuziekcursus.nl best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

onlinemuziekcursus.nl SEO score

91

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 Onlinemuziekcursus.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 Onlinemuziekcursus.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

onlinemuziekcursus.nl

Open Graph data is detected on the main page of Online Muziek Cursus. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: