23.4 sec in total
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We analyzed Rdt.cn page load time and found that the first response time was 842 ms and then it took 22.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
rdt.cn performance score
Our browser made a total of 28 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original Rdt.cn, 89% (25 requests) were made to Daminong.com and 4% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Uu38.com.
Page size can be reduced by 199.1 kB (50%)
In fact, the total size of Rdt.cn main page is 398.9 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. 15% of websites need less resources to load. Images take 243.0 kB which makes up the majority of the site volume.
Potential reduce by 184 B
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 184 B or 37% of the original size.
Potential reduce by 95.8 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, Rdt needs image optimization as it can save up to 95.8 kB or 39% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 96.5 kB
Potential reduce by 6.5 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. Rdt.cn needs all CSS files to be minified and compressed as it can save up to 6.5 kB or 72% of the original size.
We found no issues to fix!
rdt.cn accessibility score
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
<html> element does not have a [lang] attribute
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.
Links do not have a discernible name
These items highlight common accessibility best practices.
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
rdt.cn best practices score
Trust and Safety
Does not use HTTPS
Ensure CSP is effective against XSS attacks
rdt.cn SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
robots.txt is not valid
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/).
Document uses legible font sizes
Tap targets are not sized appropriately
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rdt.cn 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 Rdt.cn 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.
Open Graph description is not detected on the main page of Rdt. 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: