Access jcwledu.com. 北京北大青鸟通州校区_北京北大青鸟学费多少_北京北大青鸟_北大青鸟通州校区_北大青英特教育

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value14.5 s

8/100

10%

jcwledu.com

2953 ms

newindex.css

1304 ms

jquery-1.5.2.min.js

13334 ms

kefu.js

545 ms

stat.php

1858 ms

Our browser made a total of 145 requests to load all elements on the main page. We found that 46% of them (66 requests) were addressed to the original Jcwledu.com, 9% (13 requests) were made to H.qiao.baidu.com and 6% (8 requests) were made to Tp2.sinaimg.cn. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Jcwledu.com.

Content Size

530.6 kB

After Optimization

267.1 kB

In fact, the total size of Jcwledu.com main page is 530.6 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. 40% of websites need less resources to load. Images take 202.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 34.3 kB

Original 45.1 kB
After minification 40.9 kB
After compression 10.8 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. 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 34.3 kB or 76% of the original size.

Image Optimization

-20%

Potential reduce by 41.3 kB

Original 202.5 kB
After minification 161.2 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, Jcwledu needs image optimization as it can save up to 41.3 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 109.5 kB

Original 187.6 kB
After minification 186.5 kB
After compression 78.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 109.5 kB or 58% of the original size.

CSS Optimization

-82%

Potential reduce by 78.3 kB

Original 95.3 kB
After minification 81.8 kB
After compression 17.0 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. Jcwledu.com needs all CSS files to be minified and compressed as it can save up to 78.3 kB or 82% of the original size.

Requests Now

116

After Optimization

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jcwledu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 7 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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

Browser errors were logged to the console

High

Page has valid source maps

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

GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jcwledu.com 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 Jcwledu.com 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

jcwledu.com

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

北京北大青鸟通州校区_北京北大青鸟学费多少_北京北大青鸟_北大青鸟通州校区_北大青英特教育_北大青鸟IT学院

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

jcwledu.com

newindex.css

jquery-1.5.2.min.js

kefu.js

stat.php

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

jcwledu.com

newindex.css

jquery-1.5.2.min.js

kefu.js

stat.php

flash.js

ban2.jpg

index.php

head_bg.jpg

logo_bg.jpg

logo.jpg

menu_bg.jpg

menu_home_other.jpg

menu_li_hover.jpg

2.gif

menu_right.jpg

topnav.gif

flash1.jpg

flash2.jpg

flash3.jpg

flash4.jpg

flash5.jpg

flash_nbg2.png

flash_nbg.png

L_BoxTitle.gif

L_BoxBody.gif

L_BoxBottom.gif

jiuye2.gif

zt_lr.gif

zt_m.gif

ZTBox.gif

zaizhi.gif

daxuesheng.gif

0jichu.gif

girl.gif

R_BoxTitle.gif

R_BoxBody.gif

youshi.jpg

R_BoxBottom.gif

zhangyunjiao_2.jpg

yizhenhua1.jpg

a.gif

jiangzuo.jpg