Tools & Wizards About Us
vjiajiao.com screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 43

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

vjiajiao.com

Trust下载_Trust钱包最新版本下载/安卓版/官网下载|你的通用数字钱包

Page Load Speed

40.7 sec in total

First Response

18.5 sec

Resources Loaded

22 sec

Page Rendered

192 ms

vjiajiao.com screenshot

About Website

Click here to check amazing Vjiajiao content. Otherwise, check out these important facts you probably never knew about vjiajiao.com

★北京领航家教机构！卓越的北京家教网！★清华教师创办的北京家教中心！★人大附、北大附、四中等一线教师★32万家教师资在线选择★提供物理家教,数学家教,英语家教,化学家教,IB家教!010-82867500

Visit vjiajiao.com

Key Findings

We analyzed Vjiajiao.com page load time and found that the first response time was 18.5 sec and then it took 22.2 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

vjiajiao.com performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

vjiajiao.com

18505 ms

www.vjiajiao.com

1620 ms

global.css

1074 ms

logo.png

848 ms

contact.png

651 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 94% of them (15 requests) were addressed to the original Vjiajiao.com, 6% (1 request) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (18.5 sec) belongs to the original domain Vjiajiao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 39.8 kB (29%)

Content Size

137.4 kB

After Optimization

97.6 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Vjiajiao.com main page is 137.4 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. Only 10% of websites need less resources to load. Images take 90.8 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 30.6 kB

  • Original 38.6 kB
  • After minification 35.6 kB
  • After compression 8.0 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 30.6 kB or 79% of the original size.

Image Optimization

-10%

Potential reduce by 9.2 kB

  • Original 90.8 kB
  • After minification 81.6 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. Vjiajiao images are well optimized though.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 8.0 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.

Requests Breakdown

Number of requests can be reduced by 5 (36%)

Requests Now

14

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vjiajiao. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

vjiajiao.com

vjiajiao.com

18505 ms

www.vjiajiao.com

www.vjiajiao.com

1620 ms

global.css

global.css

1074 ms

logo.png

logo.png

848 ms

contact.png

contact.png

651 ms

banner_flag.gif

banner_flag.gif

632 ms

1462247835301ct.jpg

1462247835301ct.jpg

1495 ms

1462248009558pt.jpg

1462248009558pt.jpg

1048 ms

weixin.jpg

weixin.jpg

1303 ms

hm.js

hm.js

1189 ms

footer-contact-icon.png

footer-contact-icon.png

218 ms

headbg.jpg

headbg.jpg

231 ms

qingjj.gif

qingjj.gif

435 ms

zuojj.gif

zuojj.gif

436 ms

dh_title.gif

dh_title.gif

438 ms

menu_red.gif

menu_red.gif

591 ms

Accessibility Review

vjiajiao.com accessibility score

43

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

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

vjiajiao.com best practices score

75

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

vjiajiao.com SEO score

92

Search Engine Optimization Advices

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 Vjiajiao.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 Vjiajiao.com 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

vjiajiao.com

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