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pu.chem366.com screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    75% of other websites

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

pu.chem366.com

天天化工网

Page Load Speed

48.7 sec in total

First Response

7.7 sec

Resources Loaded

40.6 sec

Page Rendered

457 ms

pu.chem366.com screenshot

About Website

Welcome to pu.chem366.com homepage info - get ready to check Pu Chem 366 best content right away, or after learning these important things about pu.chem366.com

中国资料最大最全的聚氨酯行业门户网站,及时传播中国聚氨酯资讯,追踪聚氨酯市场与前沿技术,提供聚氨酯原料价格、市场分析,并汇集海量聚氨酯原料、聚氨酯技术专利资料,是聚氨酯从业人员查找资料信息交流的优秀平台

Visit pu.chem366.com

Key Findings

We analyzed Pu.chem366.com page load time and found that the first response time was 7.7 sec and then it took 41.1 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. Unfortunately, there were 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

pu.chem366.com performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value10.6 s

0/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.062

97/100

15%

TTI (Time to Interactive)

Value4.1 s

86/100

10%

Network Requests Diagram

pu.chem366.com

7667 ms

baseStylesheet.css

854 ms

top_v2_bar.css

857 ms

top_v2up.css

1349 ms

BottomStyle.css

1675 ms

Our browser made a total of 100 requests to load all elements on the main page. We found that 73% of them (73 requests) were addressed to the original Pu.chem366.com, 12% (12 requests) were made to Chem366.com and 4% (4 requests) were made to Tp2.sinaimg.cn. The less responsive or slowest element that took the longest time to load (20 sec) relates to the external source Chem366.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 432.0 kB (34%)

Content Size

1.3 MB

After Optimization

841.1 kB

  • Images
  • JavaScript
  • CSS

In fact, the total size of Pu.chem366.com main page is 1.3 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. 35% of websites need less resources to load. Images take 957.1 kB which makes up the majority of the site volume.

HTML Optimization

-0%

Potential reduce by -8 B

  • Original 0 B

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 web page is already compressed.

Image Optimization

-23%

Potential reduce by 223.7 kB

  • Original 957.1 kB
  • After minification 733.4 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. Obviously, Pu Chem 366 needs image optimization as it can save up to 223.7 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 183.4 kB

  • Original 286.4 kB
  • After minification 285.8 kB
  • After compression 103.0 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 183.4 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 25.0 kB

  • Original 29.7 kB
  • After minification 25.3 kB
  • After compression 4.7 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. Pu.chem366.com needs all CSS files to be minified and compressed as it can save up to 25.0 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (8%)

Requests Now

95

After Optimization

87

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 95 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pu Chem 366. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

pu.chem366.com

pu.chem366.com

7667 ms

baseStylesheet.css

baseStylesheet.css

854 ms

top_v2_bar.css

top_v2_bar.css

857 ms

top_v2up.css

top_v2up.css

1349 ms

BottomStyle.css

BottomStyle.css

1675 ms

jquery-1.11.1.min.js

jquery-1.11.1.min.js

139 ms

jquery-ui.min.js

jquery-ui.min.js

247 ms

index_v2.css

index_v2.css

1107 ms

swfobject.js

swfobject.js

2327 ms

textbox.jpg

textbox.jpg

1125 ms

login.jpg

login.jpg

984 ms

reg.jpg

reg.jpg

532 ms

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sinaweibo2.jpg

993 ms

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2164 ms

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13992 ms

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12214 ms

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19532 ms

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19532 ms

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19533 ms

seachBtn.jpg

seachBtn.jpg

2644 ms

ad20160323.jpg

ad20160323.jpg

3618 ms

LOGO.jpg

LOGO.jpg

1905 ms

top_v2up_dominbak.jpg

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3992 ms

hot.gif

hot.gif

1858 ms

imglh1.jpg

imglh1.jpg

3201 ms

imglh2.jpg

imglh2.jpg

2809 ms

title_back1.jpg

title_back1.jpg

3303 ms

title_ico1.jpg

title_ico1.jpg

3602 ms

201211.jpg

201211.jpg

6022 ms

110.jpg

110.jpg

5108 ms

shcois_2.jpg

shcois_2.jpg

4241 ms

icon_gs.gif

icon_gs.gif

3802 ms

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60 ms

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57 ms

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70 ms

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55 ms

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14298 ms

putech-ing-banner-gif.jpg

putech-ing-banner-gif.jpg

13111 ms

1

1

57 ms

new.gif

new.gif

3609 ms

reportservices.jpg

reportservices.jpg

7066 ms

wpqq.jpg

wpqq.jpg

4958 ms

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316 ms

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100 ms

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279 ms

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58 ms

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47 ms

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55 ms

7868598.js

7868598.js

1408 ms

ProviderPrice_v2.aspx

ProviderPrice_v2.aspx

9342 ms

ProductArea_v2.aspx

ProductArea_v2.aspx

10540 ms

CIQdate_v2.aspx

CIQdate_v2.aspx

9071 ms

chart_back1.jpg

chart_back1.jpg

4598 ms

chart_back2.jpg

chart_back2.jpg

5164 ms

hostnewstitleico.jpg

hostnewstitleico.jpg

5766 ms

title_ico2.jpg

title_ico2.jpg

6197 ms

listItemIco.jpg

listItemIco.jpg

6729 ms

title_back2.jpg

title_back2.jpg

8420 ms

title_ico3.jpg

title_ico3.jpg

7591 ms

cs_ico.jpg

cs_ico.jpg

7675 ms

yp_left.png

yp_left.png

8124 ms

yp_select.png

yp_select.png

8164 ms

yp_default.png

yp_default.png

9406 ms

yp_right.png

yp_right.png

9357 ms

chart_back3.jpg

chart_back3.jpg

10339 ms

chart_back4.jpg

chart_back4.jpg

9932 ms

icon_9.gif

icon_9.gif

5124 ms

showchart_v2.aspx

showchart_v2.aspx

10072 ms

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9936 ms

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10086 ms

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11239 ms

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10290 ms

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9844 ms

showchart_v2.aspx

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10566 ms

showchart_v2.aspx

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9451 ms

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9396 ms

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10803 ms

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9366 ms

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9170 ms

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9165 ms

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9359 ms

20

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9183 ms

100

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8372 ms

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8280 ms

hcmarquee.js

hcmarquee.js

4641 ms

productChart_w260_h120__10043_10013.png

productChart_w260_h120__10043_10013.png

2481 ms

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productChart_w260_h120__10014_10018.png

2624 ms

productChart_w260_h120__10000_10003.png

productChart_w260_h120__10000_10003.png

3073 ms

OilChart_w300_h155_102.png

OilChart_w300_h155_102.png

2796 ms

OilChart_w300_h155_103.png

OilChart_w300_h155_103.png

3217 ms

RateChart_w260_h110_1030.png

RateChart_w260_h110_1030.png

3955 ms

RateChart_w260_h110_1031.png

RateChart_w260_h110_1031.png

3007 ms

20150608pu.jpg

20150608pu.jpg

2383 ms

hbyd.gif

hbyd.gif

6144 ms

OilChart_w300_h155_101.png

OilChart_w300_h155_101.png

4417 ms

RateChart_w260_h110_1028.png

RateChart_w260_h110_1028.png

2798 ms

20150617.gif

20150617.gif

20049 ms

covestro20160331.gif

covestro20160331.gif

6167 ms

utech2016.jpg

utech2016.jpg

11460 ms

RateChart_w260_h110_1032.png

RateChart_w260_h110_1032.png

4332 ms

Accessibility Review

pu.chem366.com accessibility score

49

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.

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

Best Practices

pu.chem366.com 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

SEO Factors

pu.chem366.com SEO score

62

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

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 Pu.chem366.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 Pu.chem366.com 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

pu.chem366.com

Open Graph description is not detected on the main page of Pu Chem 366. 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: