Tools & Wizards About Us
center.iresearch.cn screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 62

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

center.iresearch.cn

艾瑞网_互联网数据资讯聚合平台

Page Load Speed

28.4 sec in total

First Response

5.7 sec

Resources Loaded

21.5 sec

Page Rendered

1.2 sec

center.iresearch.cn screenshot

About Website

Click here to check amazing Center Iresearch content for China. Otherwise, check out these important facts you probably never knew about center.iresearch.cn

艾瑞网聚合互联网数据资讯，融合互联网行业资源，提供电子商务、移动互联网、网络游戏、网络广告、网络营销等行业内容，为互联网管理营销市场运营人士提供丰富的产业数据、报告、专家观点、行业数据库等服务，打造最具影响力的互联网数据资讯聚合平台。

Visit center.iresearch.cn

Key Findings

We analyzed Center.iresearch.cn page load time and found that the first response time was 5.7 sec and then it took 22.7 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

center.iresearch.cn performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.7 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value270 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.299

40/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

Network Requests Diagram

center.iresearch.cn

5723 ms

www.iresearch.cn

4979 ms

base.css

840 ms

index.css

830 ms

s

2728 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Center.iresearch.cn, 55% (42 requests) were made to Iresearch.cn and 39% (30 requests) were made to Pic.iresearch.cn. The less responsive or slowest element that took the longest time to load (7 sec) relates to the external source Hm.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 332.3 kB (31%)

Content Size

1.1 MB

After Optimization

747.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Center.iresearch.cn main page is 1.1 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. 25% of websites need less resources to load. Images take 763.6 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 55.9 kB

  • Original 69.0 kB
  • After minification 52.9 kB
  • After compression 13.2 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 16.1 kB, which is 23% 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 55.9 kB or 81% of the original size.

Image Optimization

-13%

Potential reduce by 96.5 kB

  • Original 763.6 kB
  • After minification 667.1 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, Center Iresearch needs image optimization as it can save up to 96.5 kB or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 100.8 kB

  • Original 148.6 kB
  • After minification 139.4 kB
  • After compression 47.8 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 100.8 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 79.2 kB

  • Original 98.1 kB
  • After minification 79.6 kB
  • After compression 19.0 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. Center.iresearch.cn needs all CSS files to be minified and compressed as it can save up to 79.2 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (24%)

Requests Now

75

After Optimization

57

  • Images
  • JavaScript
  • CSS

The browser has sent 75 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Center Iresearch. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

center.iresearch.cn

center.iresearch.cn

5723 ms

www.iresearch.cn

www.iresearch.cn

4979 ms

base.css

base.css

840 ms

index.css

index.css

830 ms

s

s

2728 ms

glyphicons.css

glyphicons.css

372 ms

reset.css

reset.css

405 ms

function.css

function.css

435 ms

public.css

public.css

1000 ms

layout.css

layout.css

871 ms

header.css

header.css

866 ms

footer.css

footer.css

853 ms

media.css

media.css

954 ms

jquery.min.js

jquery.min.js

2007 ms

jquery.cookies.min.js

jquery.cookies.min.js

1276 ms

base.js

base.js

1250 ms

common.js

common.js

1232 ms

irsuser.js

irsuser.js

1355 ms

load.js

load.js

1326 ms

scrolltopcontrol.js

scrolltopcontrol.js

1654 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

1764 ms

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1690 ms

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2236 ms

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1714 ms

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2176 ms

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1964 ms

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3706 ms

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2549 ms

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2302 ms

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3236 ms

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2714 ms

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3208 ms

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2700 ms

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3261 ms

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3229 ms

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3423 ms

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3700 ms

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4006 ms

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4631 ms

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5077 ms

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4320 ms

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4334 ms

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4361 ms

logo.jpg

logo.jpg

1017 ms

logo_206x63.png

logo_206x63.png

1187 ms

icon_menu.png

icon_menu.png

1016 ms

menu-close-icon.png

menu-close-icon.png

1101 ms

hb_logo01.png

hb_logo01.png

1319 ms

hb_logo02.png

hb_logo02.png

1342 ms

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1484 ms

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1422 ms

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1822 ms

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2569 ms

wscfy.png

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1943 ms

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1888 ms

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shanghai.gif

1839 ms

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2121 ms

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2406 ms

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3084 ms

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3518 ms

fg_line_bg.jpg

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1556 ms

ft-logo2.png

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1662 ms

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1801 ms

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2021 ms

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2086 ms

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hb_logo05_2.png

2171 ms

h.js

h.js

7042 ms

returntop_but_bg.png

returntop_but_bg.png

1685 ms

hm.gif

hm.gif

341 ms

Accessibility Review

center.iresearch.cn accessibility score

62

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-hidden="true"] elements contain focusable descendents

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

center.iresearch.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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

center.iresearch.cn SEO score

88

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 Center.iresearch.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 Center.iresearch.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

center.iresearch.cn

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