76.9 sec in total
9 sec
67.7 sec
283 ms
Welcome to centrmus.com homepage info - get ready to check Centrmus best content for China right away, or after learning these important things about centrmus.com
中音网_专业的电脑音乐设备、数码乐器、数字音频及相关领域产品研制
Visit centrmus.comWe analyzed Centrmus.com page load time and found that the first response time was 9 sec and then it took 68 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 37 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
centrmus.com performance score
name
value
score
weighting
Value4.0 s
23/100
10%
Value14.3 s
0/100
25%
Value17.1 s
0/100
10%
Value300 ms
78/100
30%
Value1.094
1/100
15%
Value16.5 s
5/100
10%
8967 ms
1707 ms
1679 ms
12197 ms
19519 ms
Our browser made a total of 68 requests to load all elements on the main page. We found that 96% of them (65 requests) were addressed to the original Centrmus.com, 3% (2 requests) were made to Static.youku.com and 1% (1 request) were made to Html5media.googlecode.com. The less responsive or slowest element that took the longest time to load (20 sec) belongs to the original domain Centrmus.com.
Page size can be reduced by 537.1 kB (29%)
1.8 MB
1.3 MB
In fact, the total size of Centrmus.com main page is 1.8 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. 15% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 18.1 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 18.1 kB or 76% of the original size.
Potential reduce by 33.5 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. Centrmus images are well optimized though.
Potential reduce by 452.2 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 452.2 kB or 80% of the original size.
Potential reduce by 33.3 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. Centrmus.com needs all CSS files to be minified and compressed as it can save up to 33.3 kB or 83% of the original size.
Number of requests can be reduced by 5 (18%)
28
23
The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centrmus. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.
centrmus.com
8967 ms
jquery-ui.css
1707 ms
style.css
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jquery-1.9.0.min.js
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jquery-ui.js
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html5media.min.js
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jquery.smallslider.js
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html5media.min.js
96 ms
headerbg.png
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logo.jpg
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sechbtn.png
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13948 ms
centrmus.com accessibility score
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
ARIA input fields do not have accessible names
Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.
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
Document doesn't have a <title> element
Image elements do not have [alt] attributes
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.
centrmus.com 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
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
centrmus.com SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Document doesn't have a <title> element
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
ZH
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centrmus.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Centrmus.com 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.
centrmus.com
Open Graph description is not detected on the main page of Centrmus. 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: