57.6 sec in total
2.5 sec
54.6 sec
415 ms
Welcome to zcwz.com homepage info - get ready to check Zcwz best content for China right away, or after learning these important things about zcwz.com
中崋轴承网是中国专业的轴承行业信息网站,中国专业的轴承型号查询系统,提供各类进口轴承厂家信息,包括进口轴承产品信息、轴承企业、轴承供求信息、轴承行业资讯、轴承展会、轴承型号查询、轴承现货、轴承品牌分类、轴承贸易知识、轴承知识、轴承机械、轴承论坛等频道
Visit zcwz.comWe analyzed Zcwz.com page load time and found that the first response time was 2.5 sec and then it took 55 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 48 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.
zcwz.com performance score
name
value
score
weighting
Value6.2 s
4/100
10%
Value28.6 s
0/100
25%
Value11.3 s
6/100
10%
Value220 ms
88/100
30%
Value0.114
86/100
15%
Value24.6 s
1/100
10%
2521 ms
8478 ms
7329 ms
2292 ms
928 ms
Our browser made a total of 153 requests to load all elements on the main page. We found that 31% of them (48 requests) were addressed to the original Zcwz.com, 52% (79 requests) were made to File.zcwz.com and 6% (9 requests) were made to Bdimg.share.baidu.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source File.zcwz.com.
Page size can be reduced by 303.6 kB (26%)
1.2 MB
884.2 kB
In fact, the total size of Zcwz.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. 25% of websites need less resources to load. Images take 850.0 kB which makes up the majority of the site volume.
Potential reduce by 114.8 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 114.8 kB or 85% of the original size.
Potential reduce by 73.3 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. Zcwz images are well optimized though.
Potential reduce by 92.3 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 92.3 kB or 53% of the original size.
Potential reduce by 23.2 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. Zcwz.com needs all CSS files to be minified and compressed as it can save up to 23.2 kB or 77% of the original size.
Number of requests can be reduced by 35 (35%)
101
66
The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zcwz. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.
zcwz.com
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zcwz.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.
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
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Definition list items are not wrapped in <dl> elements
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
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
Form elements do not have associated labels
Links do not have a discernible name
zcwz.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
Registers an unload listener
Detected JavaScript libraries
Issues were logged in the Issues panel in Chrome Devtools
zcwz.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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zcwz.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 Zcwz.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.
zcwz.com
Open Graph description is not detected on the main page of Zcwz. 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: