Tools & Wizards About Us
gucn.com screenshot

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

gucn.com screenshot

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

gucn.com

gucn.com

2456 ms

www.gucn.com

www.gucn.com

7746 ms

jquery.js

jquery.js

4702 ms

IM.js

IM.js

6547 ms

Base.Js

Base.Js

2310 ms

dv_ajax_index_new21.js

dv_ajax_index_new21.js

1195 ms

newBase.css

newBase.css

1194 ms

newsHome2.2.css

newsHome2.2.css

2343 ms

jquery.slideshow.js

jquery.slideshow.js

384 ms

newShop.js

newShop.js

385 ms

newHomeNav.js

newHomeNav.js

770 ms

jquery.lazyload.js

jquery.lazyload.js

1855 ms

wpa.php

wpa.php

1967 ms

fun.js

fun.js

693 ms

jmessagebox.js

jmessagebox.js

3191 ms

jquery.scrollshow.js

jquery.scrollshow.js

328 ms

messagebox.css

messagebox.css

905 ms

common.css

common.css

913 ms

toolbar.css

toolbar.css

358 ms

toolbar.js

toolbar.js

359 ms

Gucn_2015716174464862.jpg

Gucn_2015716174464862.jpg

6402 ms

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2109 ms

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5446 ms

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5851 ms

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8432 ms

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9155 ms

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10135 ms

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6361 ms

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8260 ms

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8747 ms

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11631 ms

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9874 ms

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9728 ms

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10389 ms

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14060 ms

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10963 ms

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11542 ms

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13987 ms

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12016 ms

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16721 ms

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13357 ms

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12847 ms

noImgT.gif

noImgT.gif

341 ms

buy_f_HomeBtn.gif

buy_f_HomeBtn.gif

331 ms

%7B%E4%B8%93%E6%8B%8D%E5%B0%81%E9%9D%A2%E5%9B%BE%E7%89%87%7D

%7B%E4%B8%93%E6%8B%8D%E5%B0%81%E9%9D%A2%E5%9B%BE%E7%89%87%7D

1374 ms

27.gif

27.gif

1100 ms

29.gif

29.gif

389 ms

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2100 ms

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2097 ms

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2102 ms

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2113 ms

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2124 ms

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2364 ms

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2366 ms

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2367 ms

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2370 ms

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2393 ms

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2419 ms

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2638 ms

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2706 ms

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2636 ms

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2662 ms

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2700 ms

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2719 ms

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2994 ms

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3021 ms

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3015 ms

150123T.jpg

150123T.jpg

7691 ms

150123L.jpg

150123L.jpg

3270 ms

150123R.jpg

150123R.jpg

1366 ms

c.php

c.php

1086 ms

cert.js

cert.js

4092 ms

certShow

certShow

7368 ms

foot2.jpg

foot2.jpg

699 ms

foot3.jpg

foot3.jpg

1387 ms

foot4.jpg

foot4.jpg

1291 ms

picp_bg.png

picp_bg.png

1908 ms

hTitle_Bg.gif

hTitle_Bg.gif

1633 ms

newShop_spring.png

newShop_spring.png

1651 ms

headTitleBg.jpg

headTitleBg.jpg

1661 ms

logo.png

logo.png

1927 ms

searchOption.gif

searchOption.gif

1964 ms

Search.gif

Search.gif

1947 ms

Search_btn.gif

Search_btn.gif

2195 ms

categorys_item_name_icon.gif

categorys_item_name_icon.gif

2178 ms

categorys_item_bdRight_line.gif

categorys_item_bdRight_line.gif

2206 ms

headNav_sec.gif

headNav_sec.gif

2229 ms

Panel.js

Panel.js

226 ms

localStorage.js

localStorage.js

239 ms

AjaxCheckLogin_New21.asp

AjaxCheckLogin_New21.asp

2459 ms

contains.js

contains.js

77 ms

r.cgi

r.cgi

837 ms

ta.php

ta.php

675 ms

crmqq.php

crmqq.php

16703 ms

wpa_first_heart_beat.php

wpa_first_heart_beat.php

775 ms

reset.css

reset.css

422 ms

homeSpring.gif

homeSpring.gif

1567 ms

notLine.gif

notLine.gif

1602 ms

low_squ.gif

low_squ.gif

1636 ms

noImg.jpg

noImg.jpg

1881 ms

homeImgSlide.png

homeImgSlide.png

1885 ms

centerBg.gif

centerBg.gif

1926 ms

imgBoxNo.jpg

imgBoxNo.jpg

1981 ms

orderImgList.gif

orderImgList.gif

5620 ms

imgBoxNo_JB.gif

imgBoxNo_JB.gif

2245 ms

refined.gif

refined.gif

2279 ms

pio3LeftImg.gif

pio3LeftImg.gif

2358 ms

pio4LeftImg.gif

pio4LeftImg.gif

3300 ms

pio3LeftImgUp312.gif

pio3LeftImgUp312.gif

2644 ms

pio4LeftImg2.gif

pio4LeftImg2.gif

2647 ms

end_title.gif

end_title.gif

2738 ms

1.gif

1.gif

3009 ms

2.gif

2.gif

3015 ms

3.gif

3.gif

3023 ms

api.php

api.php

1887 ms

stat.htm

stat.htm

692 ms

core.php

core.php

793 ms

top1.gif

top1.gif

3034 ms

top2.gif

top2.gif

2974 ms

top3.gif

top3.gif

3062 ms

toolbarIcon.jpg

toolbarIcon.jpg

3863 ms

phoneIme.jpg

phoneIme.jpg

3307 ms

footRLine.jpg

footRLine.jpg

2989 ms

f1.gif

f1.gif

3105 ms

iconWhite.gif

iconWhite.gif

3054 ms

FootTopLine.gif

FootTopLine.gif

3171 ms

shiming_bottomimagelarge.jsp

shiming_bottomimagelarge.jsp

517 ms

blacklist.png

blacklist.png

397 ms

Gucn_20162261528146126.jpg

Gucn_20162261528146126.jpg

8201 ms

delFad.png

delFad.png

2202 ms

bottom_large_img.png

bottom_large_img.png

1529 ms

z_stat.php

z_stat.php

2292 ms

stat.htm

stat.htm

657 ms

core.php

core.php

280 ms

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

gucn.com

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: