Tools & Wizards About Us

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 38

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

gucn.com

中华古玩网 - 古董收藏、古玩收藏、古玩鉴定、古玩专场、古玩论坛、古玩交易、古玩鉴赏、鉴宝、古董鉴定、古董专场的平台、华夏收藏、盛世收藏

Page Load Speed

30.9 sec in total

First Response

2.5 sec

Resources Loaded

27.3 sec

Page Rendered

1.1 sec

About Website

Welcome to gucn.com homepage info - get ready to check Gucn best content for China right away, or after learning these important things about gucn.com

中华古玩网是专门为全球收藏爱好者提供的一个集合交易，专场，鉴定为一体的互通平台，主要提供古玩知识，古玩资讯，古玩专场，古玩交易，古玩鉴定等和收藏艺术品相关的内容。我们力求打造中国古玩行业信息收集量最大最全面的古玩行业门户网站以及最优秀最诚信的古玩交易平台。

Visit gucn.com

Key Findings

We analyzed Gucn.com page load time and found that the first response time was 2.5 sec and then it took 28.4 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.

Performance Metrics

gucn.com performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

93/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

99/100

25%

SI (Speed Index)

Value4.2 s

78/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

gucn.com

2456 ms

www.gucn.com

7746 ms

jquery.js

4702 ms

IM.js

6547 ms

Base.Js

2310 ms

Our browser made a total of 134 requests to load all elements on the main page. We found that 48% of them (64 requests) were addressed to the original Gucn.com, 16% (22 requests) were made to File.gucn.com and 16% (21 requests) were made to File6.gucn.com. The less responsive or slowest element that took the longest time to load (16.7 sec) relates to the external source File.gucn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (43%)

Content Size

3.0 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Gucn.com main page is 3.0 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. 40% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 797.0 kB

  • Original 868.0 kB
  • After minification 465.9 kB
  • After compression 71.0 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 402.1 kB, which is 46% 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 797.0 kB or 92% of the original size.

Image Optimization

-7%

Potential reduce by 110.5 kB

  • Original 1.5 MB
  • After minification 1.4 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. Gucn images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 281.5 kB

  • Original 454.5 kB
  • After minification 400.2 kB
  • After compression 173.0 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 281.5 kB or 62% of the original size.

CSS Optimization

-83%

Potential reduce by 89.1 kB

  • Original 107.0 kB
  • After minification 86.8 kB
  • After compression 18.0 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. Gucn.com needs all CSS files to be minified and compressed as it can save up to 89.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 50 (38%)

Requests Now

131

After Optimization

81

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 131 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gucn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

gucn.com accessibility score

38

Accessibility Issues

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

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

gucn.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

gucn.com SEO score

77

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Gucn.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 Gucn.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.

Social Sharing Optimization

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