Tools & Wizards About Us
vc.100e.com screenshot

Report Summary

  • 83

    Performance

    Renders faster than
    88% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

vc.100e.com

在线课程 - 一百易

Page Load Speed

13.9 sec in total

First Response

4.4 sec

Resources Loaded

9 sec

Page Rendered

458 ms

vc.100e.com screenshot

About Website

Click here to check amazing Vc 100 E content for Taiwan. Otherwise, check out these important facts you probably never knew about vc.100e.com

一百易视频课堂提供形式多样的英语培训服务，英语启蒙发音课程，英语听说课程。提供北京上海广州深圳等地英语培训，包括职场英语培训，贸易英语培训，实用英语培训，口语听力培训，四六级，考研，托福雅思BEC。采用国际化师资联袂授课，众多一流的英语教师，足不出户在家中即可与国内外名师外教“面对面”！强大的语音识别功能，丰富动感的英语资源，还充分利用了网络英语的便捷性，使学员遍布世界各地，交流与分享学习英语的喜...

Visit vc.100e.com

Key Findings

We analyzed Vc.100e.com page load time and found that the first response time was 4.4 sec and then it took 9.5 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

vc.100e.com performance score

83

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

80/100

25%

SI (Speed Index)

Value7.3 s

29/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

vc.100e.com

4423 ms

layout.css

249 ms

common.css

493 ms

home10.12.20.css

742 ms

1890 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 44% of them (23 requests) were addressed to the original Vc.100e.com, 46% (24 requests) were made to Img.100e.com and 10% (5 requests) were made to Userfile2.100e.com. The less responsive or slowest element that took the longest time to load (4.4 sec) belongs to the original domain Vc.100e.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 203.6 kB (52%)

Content Size

391.1 kB

After Optimization

187.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vc.100e.com main page is 391.1 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. 25% of websites need less resources to load. Javascripts take 163.9 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 35.6 kB

  • Original 41.0 kB
  • After minification 22.1 kB
  • After compression 5.4 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 18.8 kB, which is 46% 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 35.6 kB or 87% of the original size.

Image Optimization

-5%

Potential reduce by 6.5 kB

  • Original 141.0 kB
  • After minification 134.5 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. Vc 100 E images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 124.1 kB

  • Original 163.9 kB
  • After minification 125.4 kB
  • After compression 39.8 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 124.1 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 37.5 kB

  • Original 45.2 kB
  • After minification 33.8 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. Vc.100e.com needs all CSS files to be minified and compressed as it can save up to 37.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (51%)

Requests Now

51

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vc 100 E. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vc.100e.com

vc.100e.com

4423 ms

layout.css

layout.css

249 ms

common.css

common.css

493 ms

home10.12.20.css

home10.12.20.css

742 ms

1890 ms

home_2012120.css

home_2012120.css

1168 ms

header20120120.js

header20120120.js

1146 ms

Common.js

Common.js

475 ms

common.js

common.js

3777 ms

resizepic.js

resizepic.js

1143 ms

GreyBox.js

GreyBox.js

733 ms

ajax.js

ajax.js

491 ms

Course.js

Course.js

493 ms

3559698.jpg

3559698.jpg

1856 ms

teacherphoto_03.jpg

teacherphoto_03.jpg

249 ms

home_top_bga.png

home_top_bga.png

248 ms

top_logo.png

top_logo.png

249 ms

ban_top_teaapply.jpg

ban_top_teaapply.jpg

250 ms

phone400.png

phone400.png

250 ms

home_menu_a2.png

home_menu_a2.png

492 ms

home_menu_b2.png

home_menu_b2.png

492 ms

home_menu_c2.png

home_menu_c2.png

492 ms

home_ban_zm03.jpg

home_ban_zm03.jpg

491 ms

home_ban_fz04.jpg

home_ban_fz04.jpg

492 ms

VC_banner1.jpg

VC_banner1.jpg

984 ms

vc_gif_text.gif

vc_gif_text.gif

737 ms

vc_02.jpg

vc_02.jpg

737 ms

mycourse.jpg

mycourse.jpg

738 ms

logo2.png

logo2.png

740 ms

1818467.jpg

1818467.jpg

1840 ms

2908529.jpg

2908529.jpg

1840 ms

3510845.jpg

3510845.jpg

1840 ms

2155713.png

2155713.png

1841 ms

teacherphoto_08.jpg

teacherphoto_08.jpg

249 ms

teacherphoto_01.jpg

teacherphoto_01.jpg

251 ms

teacherphoto_02.jpg

teacherphoto_02.jpg

249 ms

teacherphoto_21.jpg

teacherphoto_21.jpg

247 ms

teacherphoto_22.jpg

teacherphoto_22.jpg

250 ms

VC_07.jpg

VC_07.jpg

808 ms

VC_01.jpg

VC_01.jpg

806 ms

VC3_03.jpg

VC3_03.jpg

305 ms

VC_line_h620.jpg

VC_line_h620.jpg

325 ms

VC_line_h760.jpg

VC_line_h760.jpg

323 ms

VC3_line11.gif

VC3_line11.gif

325 ms

gb_styles.css

gb_styles.css

250 ms

home_menu2_bg2.png

home_menu2_bg2.png

253 ms

home_menu2_tip.png

home_menu2_tip.png

248 ms

home_bottom_bg.png

home_bottom_bg.png

246 ms

w_close.gif

w_close.gif

248 ms

header_bg.gif

header_bg.gif

251 ms

g_close.gif

g_close.gif

251 ms

indicator.gif

indicator.gif

251 ms

Accessibility Review

vc.100e.com accessibility score

53

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

vc.100e.com 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

vc.100e.com SEO score

58

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

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 Vc.100e.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 Vc.100e.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

vc.100e.com

Open Graph description is not detected on the main page of Vc 100 E. 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: