Tools & Wizards About Us
glass.cn screenshot

Report Summary

  • 47

    Performance

    Renders faster than
    66% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

glass.cn

玻璃网 - 中国玻璃行业信息供应采购平台-领先的门户网站

Page Load Speed

33.6 sec in total

First Response

2.5 sec

Resources Loaded

30.7 sec

Page Rendered

329 ms

glass.cn screenshot

About Website

Visit glass.cn now to see the best up-to-date Glass content for China and also check out these interesting facts you probably never knew about glass.cn

玻璃网是中国玻璃企业上网首选平台。玻璃招标,玻璃市场信息,玻璃展会,玻璃资讯、玻璃市场、玻璃论坛、玻璃价格、玻璃产品、玻璃瓶、玻璃行情、玻璃设备、玻璃厂等全面的玻璃信息服务

Visit glass.cn

Key Findings

We analyzed Glass.cn page load time and found that the first response time was 2.5 sec and then it took 31 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 were 20 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

glass.cn performance score

47

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.7 s

10/100

10%

Network Requests Diagram

glass.cn

2540 ms

www.glass.cn

3465 ms

global2016.css

2608 ms

default20151229.css

1477 ms

bdtongji.js

697 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 8% of them (6 requests) were addressed to the original Glass.cn, 70% (53 requests) were made to Meta.glass.cn and 14% (11 requests) were made to Www7.53kf.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Meta.glass.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 267.1 kB (52%)

Content Size

517.3 kB

After Optimization

250.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Glass.cn main page is 517.3 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. Javascripts take 194.1 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 86.7 kB

  • Original 107.0 kB
  • After minification 105.6 kB
  • After compression 20.3 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. 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 86.7 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 4.3 kB

  • Original 156.9 kB
  • After minification 152.6 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. Glass images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 127.6 kB

  • Original 194.1 kB
  • After minification 187.5 kB
  • After compression 66.5 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 127.6 kB or 66% of the original size.

CSS Optimization

-82%

Potential reduce by 48.5 kB

  • Original 59.2 kB
  • After minification 56.2 kB
  • After compression 10.7 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. Glass.cn needs all CSS files to be minified and compressed as it can save up to 48.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (28%)

Requests Now

54

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Glass. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

glass.cn

glass.cn

2540 ms

www.glass.cn

www.glass.cn

3465 ms

global2016.css

global2016.css

2608 ms

default20151229.css

default20151229.css

1477 ms

bdtongji.js

bdtongji.js

697 ms

head.js

head.js

1011 ms

TopSearch.js

TopSearch.js

1507 ms

jquery.min.js

jquery.min.js

4718 ms

jquery.lazyload2.min.js

jquery.lazyload2.min.js

930 ms

home_Focus.js

home_Focus.js

973 ms

Question.js

Question.js

1093 ms

weixin.js

weixin.js

1417 ms

leftright.js

leftright.js

1465 ms

onlineservice.js

onlineservice.js

1639 ms

hm.js

hm.js

1386 ms

20160331143549_0580.jpg

20160331143549_0580.jpg

19964 ms

zx_qq.gif

zx_qq.gif

338 ms

240x80ad.gif

240x80ad.gif

1216 ms

logo_home.gif

logo_home.gif

1090 ms

online.gif

online.gif

728 ms

zx_qq.gif

zx_qq.gif

928 ms

2016jptg.gif

2016jptg.gif

1520 ms

190x60ad.gif

190x60ad.gif

2245 ms

qicai2016423.gif

qicai2016423.gif

2636 ms

yinda20160601.gif

yinda20160601.gif

5419 ms

yuntong20100319.gif

yuntong20100319.gif

5763 ms

440_180_20160329.jpg

440_180_20160329.jpg

19962 ms

440_180_20131014rencai.gif

440_180_20131014rencai.gif

4927 ms

440_180_20141010biaowang.jpg

440_180_20141010biaowang.jpg

10170 ms

fushun20160421.gif

fushun20160421.gif

5843 ms

southtech20150304.gif

southtech20150304.gif

8974 ms

northglass.gif

northglass.gif

5761 ms

20170321.gif

20170321.gif

13809 ms

hzkaiye20120401.gif

hzkaiye20120401.gif

13139 ms

mhjy20151106.gif

mhjy20151106.gif

9930 ms

aokai20150106.gif

aokai20150106.gif

16151 ms

yld20150616.gif

yld20150616.gif

13612 ms

zzfushan20151124.gif

zzfushan20151124.gif

19960 ms

yichao20150701.gif

yichao20150701.gif

19961 ms

jyty20170309.gif

jyty20170309.gif

19962 ms

huaxiang20160706.gif

huaxiang20160706.gif

19361 ms

jbtglass20151130.gif

jbtglass20151130.gif

18612 ms

kxdmbl20151222.gif

kxdmbl20151222.gif

19961 ms

fzbl20160601.gif

fzbl20160601.gif

19962 ms

160x70zhu.gif

160x70zhu.gif

19963 ms

fangdingjixie20151013.gif

fangdingjixie20151013.gif

19963 ms

szytkj0602.gif

szytkj0602.gif

19963 ms

lcgcpm20151106.gif

lcgcpm20151106.gif

19964 ms

gh.jpg

gh.jpg

2735 ms

beian.png

beian.png

6226 ms

glassLoad.gif

glassLoad.gif

19962 ms

h.js

h.js

928 ms

980x80tuiguang.gif

980x80tuiguang.gif

19794 ms

headbg.png

headbg.png

19745 ms

top2016shanghai.jpg

top2016shanghai.jpg

19570 ms

qxwz_Bg.jpg

qxwz_Bg.jpg

20234 ms

paihangtitlebg.jpg

paihangtitlebg.jpg

20035 ms

hm.gif

hm.gif

466 ms

defaultbg.png

defaultbg.png

19873 ms

icon_jiaodian01.gif

icon_jiaodian01.gif

19749 ms

icon_jiaodian02.gif

icon_jiaodian02.gif

20135 ms

menmberbg.png

menmberbg.png

19715 ms

weixin.png

weixin.png

19951 ms

1

1

921 ms

sendacc.jsp

sendacc.jsp

832 ms

kf_new.php

kf_new.php

1852 ms

kf_ivt_new.php

kf_ivt_new.php

2313 ms

zdytb_53kf_1384499397.gif

zdytb_53kf_1384499397.gif

1280 ms

zdytb_53kf_1313702560.gif

zdytb_53kf_1313702560.gif

5376 ms

zdytb_53kf_1339048568.gif

zdytb_53kf_1339048568.gif

2562 ms

jquery-1.4.2.flp.js

jquery-1.4.2.flp.js

2412 ms

dialog_17.png

dialog_17.png

848 ms

dialog_08.png

dialog_08.png

2397 ms

dialog_15.png

dialog_15.png

812 ms

dialog_01.png

dialog_01.png

1052 ms

dialog_02.png

dialog_02.png

1237 ms

Accessibility Review

glass.cn accessibility score

53

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.

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

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

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

glass.cn best practices score

58

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

glass.cn SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

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

High

Image elements do not have [alt] attributes

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 uses legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

glass.cn

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