16 sec in total
1.4 sec
14 sec
563 ms
Click here to check amazing Pzs content. Otherwise, check out these important facts you probably never knew about pzs.cn
黄浦江膨胀栓厂是一家大型膨胀螺栓专业制造企业,始建于1988年,占地面积9100平方米。建厂多年来,不断扩大生产规模,更新生产设备,改进生产技术,目前拥有国内先进的生产设备,培养了一大批专业的人才队伍,采用冷镦\
Visit pzs.cnWe analyzed Pzs.cn page load time and found that the first response time was 1.4 sec and then it took 14.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
pzs.cn performance score
name
value
score
weighting
Value2.3 s
75/100
10%
Value13.4 s
0/100
25%
Value12.0 s
4/100
10%
Value2,520 ms
4/100
30%
Value0.001
100/100
15%
Value5.8 s
67/100
10%
1390 ms
239 ms
869 ms
459 ms
771 ms
Our browser made a total of 51 requests to load all elements on the main page. We found that all of those requests were addressed to Pzs.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (11.7 sec) belongs to the original domain Pzs.cn.
Page size can be reduced by 27.7 kB (4%)
705.1 kB
677.3 kB
In fact, the total size of Pzs.cn main page is 705.1 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. 25% of websites need less resources to load. Images take 615.8 kB which makes up the majority of the site volume.
Potential reduce by 21.2 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 10.4 kB, which is 40% 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 21.2 kB or 82% of the original size.
Potential reduce by 5.5 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. Pzs images are well optimized though.
Potential reduce by 477 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 557 B
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. Pzs.cn needs all CSS files to be minified and compressed as it can save up to 557 B or 14% of the original size.
Number of requests can be reduced by 3 (6%)
49
46
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pzs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.
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pzs.cn 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.
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
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
List items (<li>) are not contained within <ul> or <ol> parent elements.
pzs.cn 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
pzs.cn 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 Pzs.cn 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 Pzs.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.
{{og_description}}
pzs.cn
Open Graph description is not detected on the main page of Pzs. 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: