Tools & Wizards About Us
ibsi.com.cn screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    82% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

ibsi.com.cn

智能建筑网-弱电工程师培训|弱电培训|安防工程师|通信工程师考试

Page Load Speed

8.5 sec in total

First Response

640 ms

Resources Loaded

7.3 sec

Page Rendered

632 ms

ibsi.com.cn screenshot

About Website

Click here to check amazing Ibsi content. Otherwise, check out these important facts you probably never knew about ibsi.com.cn

弱电工程师培训-智能建筑网,弱电培训,安防工程师培训,通信工程师考试-安全防范 楼宇自控 综合布线 视频监控 一卡通,通信网络,火灾报警,机房数据中心-智能建筑弱电工程师培训,弱电培训,安防工程师培训,通信工程师考试网

Visit ibsi.com.cn

Key Findings

We analyzed Ibsi.com.cn page load time and found that the first response time was 640 ms and then it took 7.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

ibsi.com.cn performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value5.6 s

18/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value110 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.0 s

96/100

10%

Network Requests Diagram

ibsi.com.cn

640 ms

www.ibsi.com.cn

684 ms

style.css

223 ms

jquery.min.js

658 ms

common.js

438 ms

Our browser made a total of 64 requests to load all elements on the main page. We found that 97% of them (62 requests) were addressed to the original Ibsi.com.cn, 3% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (5.2 sec) belongs to the original domain Ibsi.com.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 159.7 kB (5%)

Content Size

3.5 MB

After Optimization

3.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ibsi.com.cn main page is 3.5 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. 60% of websites need less resources to load. Images take 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 111.3 kB

  • Original 122.8 kB
  • After minification 73.3 kB
  • After compression 11.5 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 49.5 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 111.3 kB or 91% of the original size.

Image Optimization

-1%

Potential reduce by 45.0 kB

  • Original 3.3 MB
  • After minification 3.3 MB

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. Ibsi images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 981 B

  • Original 36.2 kB
  • After minification 36.2 kB
  • After compression 35.2 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

-31%

Potential reduce by 2.3 kB

  • Original 7.4 kB
  • After minification 7.4 kB
  • After compression 5.1 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. Ibsi.com.cn needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 31% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

62

After Optimization

62

  • Images
  • JavaScript
  • CSS

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ibsi. According to our analytics all requests are already optimized.

Network Requests Diagram

ibsi.com.cn

ibsi.com.cn

640 ms

www.ibsi.com.cn

www.ibsi.com.cn

684 ms

style.css

style.css

223 ms

jquery.min.js

jquery.min.js

658 ms

common.js

common.js

438 ms

top01.gif

top01.gif

221 ms

weixing-ma.jpg

weixing-ma.jpg

218 ms

logo.png

logo.png

220 ms

icon01.png

icon01.png

436 ms

icon02.gif

icon02.gif

436 ms

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1088 ms

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656 ms

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657 ms

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660 ms

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1303 ms

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652 ms

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870 ms

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list_icon.png

874 ms

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876 ms

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880 ms

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1088 ms

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5245 ms

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1094 ms

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1100 ms

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1304 ms

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1304 ms

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1313 ms

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1320 ms

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1521 ms

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1522 ms

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1521 ms

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1531 ms

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1759 ms

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1737 ms

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1738 ms

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1738 ms

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1750 ms

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1953 ms

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1955 ms

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1955 ms

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1899 ms

hm.js

hm.js

1380 ms

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1764 ms

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1954 ms

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1954 ms

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2392 ms

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4155 ms

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1550 ms

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1734 ms

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1735 ms

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1762 ms

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1740 ms

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1734 ms

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1766 ms

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1950 ms

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1742 ms

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1774 ms

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1950 ms

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2799 ms

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1741 ms

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1778 ms

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1956 ms

fotTele.jpg

fotTele.jpg

1949 ms

hm.gif

hm.gif

313 ms

Accessibility Review

ibsi.com.cn accessibility score

52

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

ibsi.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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

ibsi.com.cn SEO score

85

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 Ibsi.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 Ibsi.com.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

ibsi.com.cn

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