Tools & Wizards About Us

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 35

    Accessibility

    Visual factors better than
    that of 18% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 68

    SEO

    Google-friendlier than
    28% of websites

pcsj.com.cn

上海品诚 | 卓越PC 问道品诚 - PC板_阻燃PC_PC玻璃_耐力板_阳光板_聚碳酸酯改性[生产厂家]

Page Load Speed

25.3 sec in total

First Response

679 ms

Resources Loaded

23.6 sec

Page Rendered

1.1 sec

About Website

Click here to check amazing Pcsj content. Otherwise, check out these important facts you probably never knew about pcsj.com.cn

上海品诚专业生产聚碳酸酯幕墙系统、采光系统，PC防爆玻璃,PC阳光板,PC耐力板,阻燃PC,PC玻璃,U型锁扣板,聚碳酸酯,瓦楞板,PC/ABS改性,PC薄膜,PC加工制品,提供10年质保服务.曾为30个中国大型项目提供优质的产品和全面细致的服务

Visit pcsj.com.cn

Key Findings

We analyzed Pcsj.com.cn page load time and found that the first response time was 679 ms and then it took 24.6 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.

Performance Metrics

pcsj.com.cn performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value19.6 s

0/100

10%

TBT (Total Blocking Time)

Value300 ms

79/100

30%

CLS (Cumulative Layout Shift)

Value0.571

12/100

15%

TTI (Time to Interactive)

Value5.6 s

69/100

10%

Network Requests Diagram

pcsj.com.cn

679 ms

www.pcsj.com.cn

808 ms

style.css

194 ms

swiper.min.css

383 ms

odometer-theme-default.css

382 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 97% of them (119 requests) were addressed to the original Pcsj.com.cn, 2% (2 requests) were made to Wt.zoosnet.net and 2% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.3 sec) belongs to the original domain Pcsj.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (11%)

Content Size

16.2 MB

After Optimization

14.4 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Pcsj.com.cn main page is 16.2 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. 50% of websites need less resources to load. Images take 16.1 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 52.6 kB

  • Original 59.9 kB
  • After minification 40.2 kB
  • After compression 7.3 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 19.7 kB, which is 33% 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 52.6 kB or 88% of the original size.

Image Optimization

-11%

Potential reduce by 1.8 MB

  • Original 16.1 MB
  • After minification 14.4 MB

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, Pcsj needs image optimization as it can save up to 1.8 MB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-9%

Potential reduce by 1.1 kB

  • Original 11.6 kB
  • After minification 11.6 kB
  • After compression 10.5 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. Pcsj.com.cn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (9%)

Requests Now

117

After Optimization

106

  • Images
  • JavaScript
  • CSS

The browser has sent 117 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pcsj. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

pcsj.com.cn accessibility score

35

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

<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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

pcsj.com.cn best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

pcsj.com.cn SEO score

68

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Pcsj.com.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Pcsj.com.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Pcsj. 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: