Tools & Wizards About Us
avin.com.cn screenshot

Report Summary

  • 45

    Performance

    Renders faster than
    64% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 36% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

avin.com.cn

多媒体会议室声光电视讯系统服务商

Page Load Speed

54.8 sec in total

First Response

15 sec

Resources Loaded

39.5 sec

Page Rendered

392 ms

avin.com.cn screenshot

About Website

Welcome to avin.com.cn homepage info - get ready to check Avin best content right away, or after learning these important things about avin.com.cn

智能会议室系统及智慧教室解决方案提供商-卓飞集成.专业提供多媒体会议室集成,小剧场设计,剧场剧院建设,智慧教室设计,智慧校园系统运维,三星拼接屏显示系统|展览展示厅设计及弱电工程实施.欢迎您致电上海卓飞。全国统一服务专线800-820-8306.

Visit avin.com.cn

Key Findings

We analyzed Avin.com.cn page load time and found that the first response time was 15 sec and then it took 39.9 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 4 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

avin.com.cn performance score

45

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.314

37/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

avin.com.cn

14957 ms

main.css

10891 ms

logo.jpg

7937 ms

banner_1.jpg

20110 ms

1_0F2155K4K13.jpg

4310 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 40% of them (21 requests) were addressed to the original Avin.com.cn, 23% (12 requests) were made to Qiao.baidu.com and 8% (4 requests) were made to Lxbjs.baidu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Cnzz.mmstat.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.8 kB (59%)

Content Size

135.6 kB

After Optimization

55.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Avin.com.cn main page is 135.6 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. 15% of websites need less resources to load. CSS take 60.1 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 17.2 kB

  • Original 23.1 kB
  • After minification 20.6 kB
  • After compression 5.9 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 2.5 kB, which is 11% 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 17.2 kB or 75% of the original size.

Image Optimization

-12%

Potential reduce by 4.9 kB

  • Original 39.8 kB
  • After minification 34.8 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, Avin needs image optimization as it can save up to 4.9 kB or 12% 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 8.1 kB

  • Original 12.7 kB
  • After minification 12.7 kB
  • After compression 4.6 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 8.1 kB or 64% of the original size.

CSS Optimization

-82%

Potential reduce by 49.5 kB

  • Original 60.1 kB
  • After minification 47.8 kB
  • After compression 10.6 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. Avin.com.cn needs all CSS files to be minified and compressed as it can save up to 49.5 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (60%)

Requests Now

47

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Avin. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

avin.com.cn

avin.com.cn

14957 ms

main.css

main.css

10891 ms

logo.jpg

logo.jpg

7937 ms

banner_1.jpg

banner_1.jpg

20110 ms

1_0F2155K4K13.jpg

1_0F2155K4K13.jpg

4310 ms

55lcdlt.jpg

55lcdlt.jpg

14552 ms

1_160329160728_1-lp.jpg

1_160329160728_1-lp.jpg

20110 ms

1FA35047-0-lp.jpg

1FA35047-0-lp.jpg

16684 ms

icon_3.jpg

icon_3.jpg

7856 ms

base.css

base.css

2165 ms

top_bg.jpg

top_bg.jpg

354 ms

navigate_on.jpg

navigate_on.jpg

736 ms

banner_bg.jpg

banner_bg.jpg

6657 ms

title_bg.gif

title_bg.gif

1166 ms

mid_show_bg.jpg

mid_show_bg.jpg

14740 ms

newproducts.gif

newproducts.gif

8401 ms

icon_big.jpg

icon_big.jpg

20066 ms

icon_2.jpg

icon_2.jpg

7473 ms

footer_bg.jpg

footer_bg.jpg

7845 ms

footer_padding.jpg

footer_padding.jpg

8205 ms

icon_1.jpg

icon_1.jpg

10182 ms

4097443.js

4097443.js

937 ms

stat.php

stat.php

2318 ms

stat.htm

stat.htm

223 ms

core.php

core.php

1798 ms

9.gif

9.gif

20398 ms

icon_9.gif

icon_9.gif

769 ms

h.js

h.js

1237 ms

lxb.js

lxb.js

3960 ms

b.js

b.js

811 ms

hm.gif

hm.gif

389 ms

bsl.js

bsl.js

1164 ms

button_21.gif

button_21.gif

488 ms

Enter.php

Enter.php

649 ms

main_icon_invite_mess_api.js

main_icon_invite_mess_api.js

4602 ms

main.css

main.css

643 ms

fix.css

fix.css

1598 ms

version.js

version.js

702 ms

log.gif

log.gif

352 ms

_l.js

_l.js

816 ms

log.gif

log.gif

353 ms

02.jpg

02.jpg

4804 ms

m-webim-lite.css

m-webim-lite.css

9127 ms

m-webim-lite.js

m-webim-lite.js

3103 ms

Refresh.php

Refresh.php

292 ms

03.jpg

03.jpg

1121 ms

13.png

13.png

888 ms

stat.gif

stat.gif

1325 ms

02_small.jpg

02_small.jpg

337 ms

btn.png

btn.png

1581 ms

Refresh.php

Refresh.php

358 ms

Refresh.php

Refresh.php

413 ms

Accessibility Review

avin.com.cn accessibility score

70

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA toggle fields do not have accessible names

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.

High

Definition list items are not wrapped in <dl> elements

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

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

avin.com.cn best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

avin.com.cn SEO score

91

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

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

High

Tap targets are not sized appropriately

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 Avin.com.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 Avin.com.cn 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

avin.com.cn

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