Access bdqn.cn. 北京青鸟职业教育科技发展有限公司官网

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value6.2 s

11/100

25%

SI (Speed Index)

Value13.6 s

2/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.9 s

27/100

10%

bdqn.cn

1391 ms

www.bdqn.cn

5466 ms

slideBox.css

5745 ms

yui3-min.css

6625 ms

common.css

5962 ms

Our browser made a total of 122 requests to load all elements on the main page. We found that 39% of them (47 requests) were addressed to the original Bdqn.cn, 36% (44 requests) were made to Assets.bdqn.cn and 9% (11 requests) were made to Home.bdqn.cn. The less responsive or slowest element that took the longest time to load (20.2 sec) relates to the external source Api0.map.bdimg.com.

Content Size

2.6 MB

After Optimization

2.2 MB

In fact, the total size of Bdqn.cn main page is 2.6 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. 45% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 152.3 kB

Original 175.0 kB
After minification 119.2 kB
After compression 22.8 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 55.8 kB, which is 32% 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 152.3 kB or 87% of the original size.

Image Optimization

-7%

Potential reduce by 152.1 kB

Original 2.3 MB
After minification 2.1 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. Bdqn images are well optimized though.

JavaScript Optimization

-80%

Potential reduce by 34.5 kB

Original 43.3 kB
After minification 22.9 kB
After compression 8.8 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 34.5 kB or 80% of the original size.

CSS Optimization

-78%

Potential reduce by 33.4 kB

Original 42.9 kB
After minification 39.2 kB
After compression 9.5 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. Bdqn.cn needs all CSS files to be minified and compressed as it can save up to 33.4 kB or 78% of the original size.

Requests Now

119

After Optimization

The browser has sent 119 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bdqn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 5 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 keyboard navigation in your application.

High

[id] attributes on active, focusable elements are not unique

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

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

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

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

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 Bdqn.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 Bdqn.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

bdqn.cn

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

北京青鸟职业教育科技发展有限公司官网

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

bdqn.cn

www.bdqn.cn

slideBox.css

yui3-min.css

common.css

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

bdqn.cn

www.bdqn.cn

slideBox.css

yui3-min.css

common.css

themes20150527.css

style20150417.css

jquery-1.8.3.min.js

slideBox.js

sliding.js

tabs.js

idcard-validate.js

backBtn20150320.js

dialog.js

singleCascade.js

all20150320.js

index.js

h.js

statistics.js

hm.js

logo.jpg

map.shtml

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162.jpg

163.jpg

164.jpg

165.jpg

175.jpg

176.jpg

195.jpg

184.jpg

185.jpg

166.jpg

167.jpg

194.jpg

168.jpg

55ded9cbe52e5.gif

55ded883b750d.gif

55ded72d966f2.gif

55ded700d047d.jpg

187.jpg

copy1.jpg

copy2.jpg