18.6 sec in total
879 ms
16.2 sec
1.4 sec
Visit 51dnz.com now to see the best up-to-date 51 Dnz content and also check out these interesting facts you probably never knew about 51dnz.com
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Visit 51dnz.comWe analyzed 51dnz.com page load time and found that the first response time was 879 ms and then it took 17.7 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.
51dnz.com performance score
879 ms
267 ms
438 ms
483 ms
487 ms
Our browser made a total of 66 requests to load all elements on the main page. We found that 64% of them (42 requests) were addressed to the original 51dnz.com, 35% (23 requests) were made to Cbu01.alicdn.com and 2% (1 request) were made to China-gold.cn. The less responsive or slowest element that took the longest time to load (13.6 sec) belongs to the original domain 51dnz.com.
Page size can be reduced by 133.8 kB (12%)
1.2 MB
1.0 MB
In fact, the total size of 51dnz.com main page is 1.2 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. 45% of websites need less resources to load. Images take 929.5 kB which makes up the majority of the site volume.
Potential reduce by 28.1 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. This page needs HTML code to be minified as it can gain 4.9 kB, which is 14% 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 28.1 kB or 83% of the original size.
Potential reduce by 31.1 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. 51 Dnz images are well optimized though.
Potential reduce by 56.2 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 56.2 kB or 44% of the original size.
Potential reduce by 18.4 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. 51dnz.com needs all CSS files to be minified and compressed as it can save up to 18.4 kB or 30% of the original size.
Number of requests can be reduced by 18 (28%)
65
47
The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 51 Dnz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
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51dnz.com accessibility score
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
<frame> or <iframe> elements do not have a title
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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.
51dnz.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
51dnz.com SEO score
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
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 51dnz.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 51dnz.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.
{{og_description}}
51dnz.com
Open Graph description is not detected on the main page of 51 Dnz. 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: