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musopen.org screenshot

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

musopen.org

Free Sheet Music, Royalty Free & Public Domain Music | Musopen

Page Load Speed

2.1 sec in total

First Response

206 ms

Resources Loaded

1.8 sec

Page Rendered

114 ms

musopen.org screenshot

About Website

Welcome to musopen.org homepage info - get ready to check Musopen best content for United States right away, or after learning these important things about musopen.org

Download royalty free music and sheet music in PDF for free. We are a non-profit with the largest selection of public domain music and educational resources.

Visit musopen.org

Key Findings

We analyzed Musopen.org page load time and found that the first response time was 206 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 40% of websites can load faster.

Performance Metrics

musopen.org performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

87/100

10%

LCP (Largest Contentful Paint)

Value1.9 s

98/100

25%

SI (Speed Index)

Value7.8 s

24/100

10%

TBT (Total Blocking Time)

Value8,360 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.0 s

4/100

10%

Network Requests Diagram

musopen.org

206 ms

musopen.org

472 ms

css

54 ms

main_scripts.min.76c2bc7b2c9c.js

70 ms

analytics.js

116 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 9% of them (2 requests) were addressed to the original Musopen.org, 48% (11 requests) were made to Dosvtuos3w10g.cloudfront.net and 13% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Dosvtuos3w10g.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 256.8 kB (62%)

Content Size

415.4 kB

After Optimization

158.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Musopen.org main page is 415.4 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 194.3 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 28.8 kB

  • Original 37.0 kB
  • After minification 32.4 kB
  • After compression 8.2 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. This page needs HTML code to be minified as it can gain 4.7 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 28.8 kB or 78% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 30.3 kB
  • After minification 30.3 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. Musopen images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 105.2 kB

  • Original 194.3 kB
  • After minification 194.3 kB
  • After compression 89.0 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 105.2 kB or 54% of the original size.

CSS Optimization

-80%

Potential reduce by 122.8 kB

  • Original 153.8 kB
  • After minification 153.7 kB
  • After compression 31.0 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. Musopen.org needs all CSS files to be minified and compressed as it can save up to 122.8 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Musopen. According to our analytics all requests are already optimized.

Network Requests Diagram

musopen.org

musopen.org

206 ms

musopen.org

musopen.org

472 ms

css

css

54 ms

main_scripts.min.76c2bc7b2c9c.js

main_scripts.min.76c2bc7b2c9c.js

70 ms

analytics.js

analytics.js

116 ms

mixpanel-2.2.min.js

mixpanel-2.2.min.js

219 ms

logo.59e530518f83.svg

logo.59e530518f83.svg

54 ms

landing-icons.a479ecbc1339.svg

landing-icons.a479ecbc1339.svg

71 ms

Felix_Mendelssohn_Bartholdy_-_Edward_Magnus_1846_98_98_cropped.jpg

Felix_Mendelssohn_Bartholdy_-_Edward_Magnus_1846_98_98_cropped.jpg

156 ms

381px-Dvorak1_98_98_cropped.jpg

381px-Dvorak1_98_98_cropped.jpg

127 ms

Chopin_98_98_cropped.jpg

Chopin_98_98_cropped.jpg

161 ms

Wolfgang-amadeus-mozart_1-revert_98_98_cropped.jpg

Wolfgang-amadeus-mozart_1-revert_98_98_cropped.jpg

166 ms

Borodin_98_98_cropped.jpg

Borodin_98_98_cropped.jpg

1061 ms

Franz_Schubert_by_Wilhelm_August_Rieder_1875_98_98_cropped.jpg

Franz_Schubert_by_Wilhelm_August_Rieder_1875_98_98_cropped.jpg

121 ms

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

zhcz-_WihjSQC0oHJ9TCYC3USBnSvpkopQaUR-2r7iU.ttf

121 ms

IQHow_FEYlDC4Gzy_m8fcvEr6Hm6RMS0v1dtXsGir4g.ttf

IQHow_FEYlDC4Gzy_m8fcvEr6Hm6RMS0v1dtXsGir4g.ttf

155 ms

y7lebkjgREBJK96VQi37Zp0EAVxt0G0biEntp43Qt6E.ttf

y7lebkjgREBJK96VQi37Zp0EAVxt0G0biEntp43Qt6E.ttf

111 ms

glyphicons-halflings-regular.5eae1f7217b6.woff

glyphicons-halflings-regular.5eae1f7217b6.woff

76 ms

main_styles.min.fe6c727c7876.css

main_styles.min.fe6c727c7876.css

75 ms

collect

collect

49 ms

collect

collect

57 ms

26 ms

26 ms

Accessibility Review

musopen.org accessibility score

86

Accessibility Issues

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

High

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best Practices

musopen.org 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

musopen.org SEO score

93

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Musopen.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Musopen.org 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

musopen.org

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