54.2 sec in total
1.4 sec
52.5 sec
412 ms
Visit o571.com now to see the best up-to-date O 571 content for China and also check out these interesting facts you probably never knew about o571.com
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Visit o571.comWe analyzed O571.com page load time and found that the first response time was 1.4 sec and then it took 52.9 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 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
o571.com performance score
name
value
score
weighting
Value4.2 s
20/100
10%
Value13.0 s
0/100
25%
Value32.4 s
0/100
10%
Value21,530 ms
0/100
30%
Value0
100/100
15%
Value45.1 s
0/100
10%
1378 ms
8502 ms
1239 ms
4464 ms
1024 ms
Our browser made a total of 105 requests to load all elements on the main page. We found that 22% of them (23 requests) were addressed to the original O571.com, 70% (73 requests) were made to Img.o571.com and 4% (4 requests) were made to Www17.53kf.com. The less responsive or slowest element that took the longest time to load (19.7 sec) relates to the external source Img.o571.com.
Page size can be reduced by 331.8 kB (28%)
1.2 MB
852.7 kB
In fact, the total size of O571.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. 35% of websites need less resources to load. Images take 827.6 kB which makes up the majority of the site volume.
Potential reduce by 153.6 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 31.4 kB, which is 18% 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 153.6 kB or 88% of the original size.
Potential reduce by 53.4 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. O 571 images are well optimized though.
Potential reduce by 98.6 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 98.6 kB or 66% of the original size.
Potential reduce by 26.2 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. O571.com needs all CSS files to be minified and compressed as it can save up to 26.2 kB or 79% of the original size.
Number of requests can be reduced by 10 (10%)
100
90
The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O 571. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.
o571.com
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o571.com accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
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
Image elements do not have [alt] attributes
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
o571.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
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
o571.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
ZH
N/A
GB2312
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise O571.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 O571.com main page’s claimed encoding is gb2312. 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.
o571.com
Open Graph description is not detected on the main page of O 571. 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: