Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

sonicvisualiser.org

Sonic Visualiser

Page Load Speed

1.3 sec in total

First Response

288 ms

Resources Loaded

848 ms

Page Rendered

129 ms

sonicvisualiser.org screenshot

About Website

Click here to check amazing Sonic Visualiser content for United States. Otherwise, check out these important facts you probably never knew about sonicvisualiser.org

Sonic Visualiser is a program for viewing and analysing the contents of music audio files.

Visit sonicvisualiser.org

Key Findings

We analyzed Sonicvisualiser.org page load time and found that the first response time was 288 ms and then it took 977 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

sonicvisualiser.org performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.107

88/100

15%

TTI (Time to Interactive)

Value1.2 s

100/100

10%

Network Requests Diagram

sonicvisualiser.org

288 ms

screen.css

96 ms

sv2-thumb.png

560 ms

qm-logo.png

195 ms

omras2-logo.png

197 ms

Our browser made a total of 9 requests to load all elements on the main page. We found that all of those requests were addressed to Sonicvisualiser.org and no external sources were called. The less responsive or slowest element that took the longest time to load (560 ms) belongs to the original domain Sonicvisualiser.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 42.9 kB (24%)

Content Size

179.8 kB

After Optimization

136.9 kB

In fact, the total size of Sonicvisualiser.org main page is 179.8 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Images take 172.8 kB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 2.9 kB

  • Original 4.6 kB
  • After minification 4.3 kB
  • After compression 1.7 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 2.9 kB or 62% of the original size.

Image Optimization

-22%

Potential reduce by 38.2 kB

  • Original 172.8 kB
  • After minification 134.6 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, Sonic Visualiser needs image optimization as it can save up to 38.2 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-75%

Potential reduce by 1.8 kB

  • Original 2.4 kB
  • After minification 1.9 kB
  • After compression 598 B

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. Sonicvisualiser.org needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 75% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

8

After Optimization

8

The browser has sent 8 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sonic Visualiser. According to our analytics all requests are already optimized.

Accessibility Review

sonicvisualiser.org accessibility score

87

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

sonicvisualiser.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

sonicvisualiser.org SEO score

75

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sonicvisualiser.org can be misinterpreted by Google and other search engines. Our service has detected that English 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 Sonicvisualiser.org main page’s claimed encoding is . 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.

Social Sharing Optimization

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