Access 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

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

81/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value12.6 s

3/100

10%

TBT (Total Blocking Time)

Value310 ms

78/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.4 s

93/100

10%

ibsi.com.cn

5370 ms

phpcms.css

1852 ms

config.js

1074 ms

jquery.min.js

2270 ms

css.js

1096 ms

Our browser made a total of 139 requests to load all elements on the main page. We found that 81% of them (113 requests) were addressed to the original Ibsi.com.cn, 9% (12 requests) were made to 6do.org.cn and 6% (8 requests) were made to Pub.idqqimg.com. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Img.webscan.360.cn.

Content Size

1.3 MB

After Optimization

1.0 MB

In fact, the total size of Ibsi.com.cn 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 991.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 102.4 kB

Original 124.5 kB
After minification 120.9 kB
After compression 22.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 102.4 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 58.3 kB

Original 991.6 kB
After minification 933.4 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. Ibsi images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 62.0 kB

Original 101.7 kB
After minification 101.2 kB
After compression 39.7 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 62.0 kB or 61% of the original size.

CSS Optimization

-79%

Potential reduce by 29.5 kB

Original 37.2 kB
After minification 32.2 kB
After compression 7.7 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. Ibsi.com.cn needs all CSS files to be minified and compressed as it can save up to 29.5 kB or 79% of the original size.

Requests Now

136

After Optimization

103

The browser has sent 136 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ibsi. 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 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the interpretation of your content by users in different locales.

High

<html> element does not have a [lang] attribute

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.

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

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

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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:

Report Summary

Performance

Accessibility

Best Practices

SEO

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

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ibsi.com.cn

phpcms.css

config.js

jquery.min.js

css.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ibsi.com.cn

phpcms.css

config.js

jquery.min.js

css.js

common.js

login.js

validator.js

jquery.min00.js

js.php

base.css

table.css

js.php

bg_2.jpg

logo.gif

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an_01.gif

20111201060259929.jpg

jjjjjjjjjjjjjjjjjjjjjjjj.gif

20160122031415441.jpg

20151230085709244.jpg

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20110217022111130.gif

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an_02.gif

js.php

js.php

js.php

js.php