Tools & Wizards About Us
pzs.cn screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 41

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    21% of websites

pzs.cn

膨胀栓|内膨胀|化学锚栓|电梯丝|热水器钩|车修壁虎|内爆|管卡|羊眼圈胀栓|六角套筒壁虎|吊扇钩|暖气托钩|一钉得锤击胀栓|机械胀栓|窗式壁虎|镀锌螺栓|螺母|平垫|黄浦江膨胀螺栓厂

Page Load Speed

16 sec in total

First Response

1.4 sec

Resources Loaded

14 sec

Page Rendered

563 ms

pzs.cn screenshot

About Website

Click here to check amazing Pzs content. Otherwise, check out these important facts you probably never knew about pzs.cn

黄浦江膨胀栓厂是一家大型膨胀螺栓专业制造企业，始建于1988年，占地面积9100平方米。建厂多年来，不断扩大生产规模，更新生产设备，改进生产技术，目前拥有国内先进的生产设备，培养了一大批专业的人才队伍，采用冷镦\

Visit pzs.cn

Key Findings

We analyzed Pzs.cn page load time and found that the first response time was 1.4 sec and then it took 14.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

pzs.cn performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.4 s

97/100

10%

LCP (Largest Contentful Paint)

Value13.2 s

0/100

25%

SI (Speed Index)

Value10.7 s

7/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value2.6 s

98/100

10%

Network Requests Diagram

pzs.cn

1390 ms

css.css

239 ms

jquery-1.7.1.min.js

869 ms

slider.js

459 ms

jquery.js

771 ms

Our browser made a total of 51 requests to load all elements on the main page. We found that all of those requests were addressed to Pzs.cn and no external sources were called. The less responsive or slowest element that took the longest time to load (11.7 sec) belongs to the original domain Pzs.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 27.7 kB (4%)

Content Size

705.1 kB

After Optimization

677.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pzs.cn main page is 705.1 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. Images take 615.8 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 21.2 kB

  • Original 25.8 kB
  • After minification 15.4 kB
  • After compression 4.6 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 10.4 kB, which is 40% 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 21.2 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 5.5 kB

  • Original 615.8 kB
  • After minification 610.3 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. Pzs images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 477 B

  • Original 59.5 kB
  • After minification 59.5 kB
  • After compression 59.0 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. This website has mostly compressed JavaScripts.

CSS Optimization

-14%

Potential reduce by 557 B

  • Original 3.9 kB
  • After minification 3.9 kB
  • After compression 3.4 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. Pzs.cn needs all CSS files to be minified and compressed as it can save up to 557 B or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (6%)

Requests Now

49

After Optimization

46

  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pzs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

pzs.cn

pzs.cn

1390 ms

css.css

css.css

239 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

869 ms

slider.js

slider.js

459 ms

jquery.js

jquery.js

771 ms

lrtk.js

lrtk.js

471 ms

logo.png

logo.png

540 ms

alpha.png

alpha.png

233 ms

20170315165635496.jpg

20170315165635496.jpg

3829 ms

cp_line.png

cp_line.png

258 ms

20170311095158231.jpg

20170311095158231.jpg

688 ms

20170324090001893.jpg

20170324090001893.jpg

2090 ms

20170324090014938.jpg

20170324090014938.jpg

3068 ms

2017032710104988.jpg

2017032710104988.jpg

5430 ms

20170324085949293.jpg

20170324085949293.jpg

2476 ms

20170324085923441.jpg

20170324085923441.jpg

3262 ms

2017032408590967.jpg

2017032408590967.jpg

5867 ms

20170315153212557.jpg

20170315153212557.jpg

4211 ms

nav_ban.jpg

nav_ban.jpg

4666 ms

xz_tit.jpg

xz_tit.jpg

4099 ms

20170311102001992.jpg

20170311102001992.jpg

4155 ms

xz_02.jpg

xz_02.jpg

6727 ms

20170311102011525.jpg

20170311102011525.jpg

4478 ms

xz_04.jpg

xz_04.jpg

7289 ms

xz_01.jpg

xz_01.jpg

7152 ms

20170311102021356.jpg

20170311102021356.jpg

5001 ms

xz_03.jpg

xz_03.jpg

7796 ms

20170311102031897.jpg

20170311102031897.jpg

5774 ms

20170915140706364.jpg

20170915140706364.jpg

8520 ms

xw_more.png

xw_more.png

6145 ms

20170909133808812.jpg

20170909133808812.jpg

8158 ms

20170812163612699.jpg

20170812163612699.jpg

8443 ms

20170730134657926.jpg

20170730134657926.jpg

8252 ms

yqlj_bt.jpg

yqlj_bt.jpg

7704 ms

phone.png

phone.png

7961 ms

bot_logo.png

bot_logo.png

8678 ms

ewm.jpg

ewm.jpg

8210 ms

20170320100144310.jpg

20170320100144310.jpg

11659 ms

ad_ctr.png

ad_ctr.png

8449 ms

dot.png

dot.png

8451 ms

gjc_bg.jpg

gjc_bg.jpg

8627 ms

rmgjc_t.jpg

rmgjc_t.jpg

8675 ms

search.jpg

search.jpg

8531 ms

bg_jj.jpg

bg_jj.jpg

9607 ms

ys_dot.jpg

ys_dot.jpg

8383 ms

bot_line.jpg

bot_line.jpg

8250 ms

r_b.png

r_b.png

6897 ms

r_qq.png

r_qq.png

6552 ms

r_wx.png

r_wx.png

6101 ms

r_phone.png

r_phone.png

5934 ms

r_top.png

r_top.png

5396 ms

Accessibility Review

pzs.cn accessibility score

41

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.

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

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

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

pzs.cn best practices score

50

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

pzs.cn SEO score

58

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 Pzs.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 Pzs.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

pzs.cn

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